Operational Best Practices for CMMC 2.0 Level 2

Conformance packs provide a general-purpose compliance framework designed to enable you to create security, operational or cost-optimization governance checks using managed or custom AWS Config rules and AWS Config remediation actions. Conformance Packs, as sample templates, are not designed to fully ensure compliance with a specific governance or compliance standard. You are responsible for making your own assessment of whether your use of the Services meets applicable legal and regulatory requirements.

The following provides a sample mapping between the Cybersecurity Maturity Model Certification (CMMC) 2.0 Level 2 and AWS managed Config rules. Each Config rule applies to a specific AWS resource, and relates to one or more CMMC 2.0 Level 2 controls. A CMMC 2.0 Level 2 control can be related to multiple Config rules. Refer to the table below for more detail and guidance related to these mappings.

Control ID	Control Description	AWS Config Rule	Guidance
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	access-keys-rotated	The credentials are audited for authorized devices, users, and processes by ensuring IAM access keys are rotated as specified by the organizational policy. Changing the access keys on a regular schedule is a security best practice. It shortens the period an access key is active and reduces the business impact if the keys are compromised. This rule requires an access key rotation value (Config Default: 90). The actual value should reflect your organization's policies.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	ec2-imdsv2-check	Ensure the Instance Metadata Service Version 2 (IMDSv2) method is enabled to help protect access and control of Amazon Elastic Compute Cloud (Amazon EC2) instance metadata. The IMDSv2 method uses session-based controls. With IMDSv2, controls can be implemented to restrict changes to instance metadata.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	ec2-instance-profile-attached	EC2 instance profiles pass an IAM role to an EC2 instance. Attaching an instance profile to your instances can assist with least privilege and permissions management.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-customer-policy-blocked-kms-actions	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing blocked actions on all AWS Key Management Service keys. Having more privileges than needed to complete a task may violate the principle of least privilege and separation of duties. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-inline-policy-blocked-kms-actions	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to allow blocked actions on all AWS Key Management Service keys. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning, rolling back, and delegating permissions management. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-no-inline-policy-check	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-policy-no-statements-with-admin-access	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "" over "Resource": "". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-policy-no-statements-with-full-access	Ensure IAM Actions are restricted to only those actions that are needed. Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-root-access-key-check	Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-user-group-membership-check	AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-user-mfa-enabled	Enable this rule to restrict access to resources in the AWS Cloud. This rule ensures multi-factor authentication (MFA) is enabled for all users. MFA adds an extra layer of protection on top of sign-in credentials. Reduce the incidents of compromised accounts by requiring MFA for users.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-user-no-policies-check	This rule ensures AWS Identity and Access Management (IAM) policies are attached only to groups or roles to control access to systems and assets. Assigning privileges at the group or the role level helps to reduce opportunity for an identity to receive or retain excessive privileges.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	iam-user-unused-credentials-check	AWS Identity and Access Management (IAM) can help you with access permissions and authorizations by checking for IAM passwords and access keys that are not used for a specified time period. If these unused credentials are identified, you should disable and/or remove the credentials, as this may violate the principle of least privilege. This rule requires you to set a value to the maxCredentialUsageAge (Config Default: 90). The actual value should reflect your organization's policies.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	ec2-instances-in-vpc	Deploy Amazon Elastic Compute Cloud (Amazon EC2) instances within an Amazon Virtual Private Cloud (Amazon VPC) to enable secure communication between an instance and other services within the amazon VPC, without requiring an internet gateway, NAT device, or VPN connection. All traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. Assign Amazon EC2 instances to an Amazon VPC to properly manage access.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	lambda-inside-vpc	Deploy AWS Lambda functions within an Amazon Virtual Private Cloud (Amazon VPC) for a secure communication between a function and other services within the Amazon VPC. With this configuration, there is no requirement for an internet gateway, NAT device, or VPN connection. All the traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. To properly manage access, AWS Lambda functions should be assigned to a VPC.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	mfa-enabled-for-iam-console-access	Manage access to resources in the AWS Cloud by ensuring that MFA is enabled for all AWS Identity and Access Management (IAM) users that have a console password. MFA adds an extra layer of protection on top of sign-in credentials. By requiring MFA for users, you can reduce incidents of compromised accounts and keep sensitive data from being accessed by unauthorized users.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	root-account-hardware-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring hardware MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	root-account-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	s3-bucket-policy-grantee-check	Manage access to the AWS Cloud by enabling s3_ bucket_policy_grantee_check. This rule checks that the access granted by the Amazon S3 bucket is restricted by any of the AWS principals, federated users, service principals, IP addresses, or Amazon Virtual Private Cloud (Amazon VPC) IDs that you provide.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	secretsmanager-rotation-enabled-check	This rule ensures AWS Secrets Manager secrets have rotation enabled. Rotating secrets on a regular schedule can shorten the period a secret is active, and potentially reduce the business impact if the secret is compromised.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	secretsmanager-scheduled-rotation-success-check	This rule ensures that AWS Secrets Manager secrets have rotated successfully according to the rotation schedule. Rotating secrets on a regular schedule can shorten the period that a secret is active, and potentially reduce the business impact if it is compromised.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
AC.L1-3.1.1	Limit information system access to authorized users, processes acting on behalf of authorized users, or devices (including other information systems).	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	ec2-imdsv2-check	Ensure the Instance Metadata Service Version 2 (IMDSv2) method is enabled to help protect access and control of Amazon Elastic Compute Cloud (Amazon EC2) instance metadata. The IMDSv2 method uses session-based controls. With IMDSv2, controls can be implemented to restrict changes to instance metadata.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-no-inline-policy-check	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-password-policy	The identities and the credentials are issued, managed, and verified based on an organizational IAM password policy. They meet or exceed requirements as stated by NIST SP 800-63 and the AWS Foundational Security Best Practices standard for password strength. This rule allows you to optionally set RequireUppercaseCharacters (AWS Foundational Security Best Practices value: true), RequireLowercaseCharacters (AWS Foundational Security Best Practices value: true), RequireSymbols (AWS Foundational Security Best Practices value: true), RequireNumbers (AWS Foundational Security Best Practices value: true), MinimumPasswordLength (AWS Foundational Security Best Practices value: 14), PasswordReusePrevention (AWS Foundational Security Best Practices value: 24), and MaxPasswordAge (AWS Foundational Security Best Practices value: 90) for your IAM Password Policy. The actual values should reflect your organization's policies.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-policy-no-statements-with-admin-access	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "" over "Resource": "". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-root-access-key-check	Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-user-group-membership-check	AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-user-mfa-enabled	Enable this rule to restrict access to resources in the AWS Cloud. This rule ensures multi-factor authentication (MFA) is enabled for all users. MFA adds an extra layer of protection on top of sign-in credentials. Reduce the incidents of compromised accounts by requiring MFA for users.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	iam-user-no-policies-check	This rule ensures AWS Identity and Access Management (IAM) policies are attached only to groups or roles to control access to systems and assets. Assigning privileges at the group or the role level helps to reduce opportunity for an identity to receive or retain excessive privileges.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	ec2-instances-in-vpc	Deploy Amazon Elastic Compute Cloud (Amazon EC2) instances within an Amazon Virtual Private Cloud (Amazon VPC) to enable secure communication between an instance and other services within the amazon VPC, without requiring an internet gateway, NAT device, or VPN connection. All traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. Assign Amazon EC2 instances to an Amazon VPC to properly manage access.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	lambda-inside-vpc	Deploy AWS Lambda functions within an Amazon Virtual Private Cloud (Amazon VPC) for a secure communication between a function and other services within the Amazon VPC. With this configuration, there is no requirement for an internet gateway, NAT device, or VPN connection. All the traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. To properly manage access, AWS Lambda functions should be assigned to a VPC.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	mfa-enabled-for-iam-console-access	Manage access to resources in the AWS Cloud by ensuring that MFA is enabled for all AWS Identity and Access Management (IAM) users that have a console password. MFA adds an extra layer of protection on top of sign-in credentials. By requiring MFA for users, you can reduce incidents of compromised accounts and keep sensitive data from being accessed by unauthorized users.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	root-account-hardware-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring hardware MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	root-account-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	s3-bucket-policy-grantee-check	Manage access to the AWS Cloud by enabling s3_ bucket_policy_grantee_check. This rule checks that the access granted by the Amazon S3 bucket is restricted by any of the AWS principals, federated users, service principals, IP addresses, or Amazon Virtual Private Cloud (Amazon VPC) IDs that you provide.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
AC.L1-3.1.2	Limit information system access to the types of transactions and functions that authorized users are permitted to execute.	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	alb-waf-enabled	Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	autoscaling-launch-config-public-ip-disabled	If you configure your Network Interfaces with a public IP address, then the associated resources to those Network Interfaces are reachable from the internet. EC2 resources should not be publicly accessible, as this may allow unintended access to your applications or servers.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	subnet-auto-assign-public-ip-disabled	Manage access to the AWS Cloud by ensuring Amazon Virtual Private Cloud (VPC) subnets are not automatically assigned a public IP address. Amazon Elastic Compute Cloud (EC2) instances that are launched into subnets that have this attribute enabled have a public IP address assigned to their primary network interface.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
AC.L1-3.1.20	Verify and control/limit connections to and use of external information systems.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	alb-waf-enabled	Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	api-gw-associated-with-waf	AWS WAF enables you to configure a set of rules (called a web access control list (web ACL)) that allow, block, or count web requests based on customizable web security rules and conditions that you define. Ensure your Amazon API Gateway stage is associated with a WAF Web ACL to protect it from malicious attacks
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	autoscaling-launch-config-public-ip-disabled	If you configure your Network Interfaces with a public IP address, then the associated resources to those Network Interfaces are reachable from the internet. EC2 resources should not be publicly accessible, as this may allow unintended access to your applications or servers.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	ec2-instances-in-vpc	Deploy Amazon Elastic Compute Cloud (Amazon EC2) instances within an Amazon Virtual Private Cloud (Amazon VPC) to enable secure communication between an instance and other services within the amazon VPC, without requiring an internet gateway, NAT device, or VPN connection. All traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. Assign Amazon EC2 instances to an Amazon VPC to properly manage access.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	lambda-inside-vpc	Deploy AWS Lambda functions within an Amazon Virtual Private Cloud (Amazon VPC) for a secure communication between a function and other services within the Amazon VPC. With this configuration, there is no requirement for an internet gateway, NAT device, or VPN connection. All the traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. To properly manage access, AWS Lambda functions should be assigned to a VPC.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	subnet-auto-assign-public-ip-disabled	Manage access to the AWS Cloud by ensuring Amazon Virtual Private Cloud (VPC) subnets are not automatically assigned a public IP address. Amazon Elastic Compute Cloud (EC2) instances that are launched into subnets that have this attribute enabled have a public IP address assigned to their primary network interface.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
AC.L2-3.1.3	Control the flow of CUI in accordance with approved authorizations.	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-customer-policy-blocked-kms-actions	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing blocked actions on all AWS Key Management Service keys. Having more privileges than needed to complete a task may violate the principle of least privilege and separation of duties. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-group-has-users-check	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, by ensuring that IAM groups have at least one user. Placing users in groups based on their associated permissions or job function is one way to incorporate least privilege.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-no-inline-policy-check	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-policy-no-statements-with-admin-access	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "" over "Resource": "". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-policy-no-statements-with-full-access	Ensure IAM Actions are restricted to only those actions that are needed. Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-root-access-key-check	Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-user-group-membership-check	AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	iam-user-no-policies-check	This rule ensures AWS Identity and Access Management (IAM) policies are attached only to groups or roles to control access to systems and assets. Assigning privileges at the group or the role level helps to reduce opportunity for an identity to receive or retain excessive privileges.
AC.L2-3.1.4	Separate the duties of individuals to reduce the risk of malevolent activity without collusion.	s3-bucket-policy-grantee-check	Manage access to the AWS Cloud by enabling s3_ bucket_policy_grantee_check. This rule checks that the access granted by the Amazon S3 bucket is restricted by any of the AWS principals, federated users, service principals, IP addresses, or Amazon Virtual Private Cloud (Amazon VPC) IDs that you provide.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	ec2-imdsv2-check	Ensure the Instance Metadata Service Version 2 (IMDSv2) method is enabled to help protect access and control of Amazon Elastic Compute Cloud (Amazon EC2) instance metadata. The IMDSv2 method uses session-based controls. With IMDSv2, controls can be implemented to restrict changes to instance metadata.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-customer-policy-blocked-kms-actions	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing blocked actions on all AWS Key Management Service keys. Having more privileges than needed to complete a task may violate the principle of least privilege and separation of duties. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-group-has-users-check	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, by ensuring that IAM groups have at least one user. Placing users in groups based on their associated permissions or job function is one way to incorporate least privilege.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-inline-policy-blocked-kms-actions	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to allow blocked actions on all AWS Key Management Service keys. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning, rolling back, and delegating permissions management. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-no-inline-policy-check	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-policy-no-statements-with-admin-access	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "" over "Resource": "". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-policy-no-statements-with-full-access	Ensure IAM Actions are restricted to only those actions that are needed. Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-root-access-key-check	Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-user-group-membership-check	AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	iam-user-no-policies-check	This rule ensures AWS Identity and Access Management (IAM) policies are attached only to groups or roles to control access to systems and assets. Assigning privileges at the group or the role level helps to reduce opportunity for an identity to receive or retain excessive privileges.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	s3-bucket-policy-grantee-check	Manage access to the AWS Cloud by enabling s3_ bucket_policy_grantee_check. This rule checks that the access granted by the Amazon S3 bucket is restricted by any of the AWS principals, federated users, service principals, IP addresses, or Amazon Virtual Private Cloud (Amazon VPC) IDs that you provide.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
AC.L2-3.1.5	Employ the principle of least privilege, including for specific security functions and privileged accounts.	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-customer-policy-blocked-kms-actions	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing blocked actions on all AWS Key Management Service keys. Having more privileges than needed to complete a task may violate the principle of least privilege and separation of duties. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-group-has-users-check	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, by ensuring that IAM groups have at least one user. Placing users in groups based on their associated permissions or job function is one way to incorporate least privilege.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-inline-policy-blocked-kms-actions	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to allow blocked actions on all AWS Key Management Service keys. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning, rolling back, and delegating permissions management. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-no-inline-policy-check	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-policy-no-statements-with-admin-access	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "" over "Resource": "". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-policy-no-statements-with-full-access	Ensure IAM Actions are restricted to only those actions that are needed. Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-root-access-key-check	Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-user-group-membership-check	AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.6	Use non-privileged accounts or roles when accessing nonsecurity functions.	iam-user-no-policies-check	This rule ensures AWS Identity and Access Management (IAM) policies are attached only to groups or roles to control access to systems and assets. Assigning privileges at the group or the role level helps to reduce opportunity for an identity to receive or retain excessive privileges.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	api-gw-execution-logging-enabled	API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	cloudtrail-s3-dataevents-enabled	The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	elb-logging-enabled	Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-customer-policy-blocked-kms-actions	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing blocked actions on all AWS Key Management Service keys. Having more privileges than needed to complete a task may violate the principle of least privilege and separation of duties. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-group-has-users-check	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, by ensuring that IAM groups have at least one user. Placing users in groups based on their associated permissions or job function is one way to incorporate least privilege.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-inline-policy-blocked-kms-actions	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to allow blocked actions on all AWS Key Management Service keys. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning, rolling back, and delegating permissions management. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-no-inline-policy-check	Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-policy-no-statements-with-admin-access	AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "" over "Resource": "". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-policy-no-statements-with-full-access	Ensure IAM Actions are restricted to only those actions that are needed. Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-root-access-key-check	Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-user-group-membership-check	AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	iam-user-no-policies-check	This rule ensures AWS Identity and Access Management (IAM) policies are attached only to groups or roles to control access to systems and assets. Assigning privileges at the group or the role level helps to reduce opportunity for an identity to receive or retain excessive privileges.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	rds-logging-enabled	To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	s3-bucket-logging-enabled	Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
AC.L2-3.1.7	Prevent non-privileged users from executing privileged functions and capture the execution of such functions in audit logs.	s3-bucket-policy-grantee-check	Manage access to the AWS Cloud by enabling s3_ bucket_policy_grantee_check. This rule checks that the access granted by the Amazon S3 bucket is restricted by any of the AWS principals, federated users, service principals, IP addresses, or Amazon Virtual Private Cloud (Amazon VPC) IDs that you provide.
AC.L2-3.1.12	Monitor and control remote access sessions.	cloudwatch-alarm-action-check	Amazon CloudWatch alarms alert when a metric breaches the threshold for a specified number of evaluation periods. The alarm performs one or more actions based on the value of the metric or expression relative to a threshold over a number of time periods. This rule requires a value for alarmActionRequired (Config Default: True), insufficientDataActionRequired (Config Default: True), okActionRequired (Config Default: False). The actual value should reflect the alarm actions for your environment.
AC.L2-3.1.12	Monitor and control remote access sessions.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
AC.L2-3.1.12	Monitor and control remote access sessions.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
AC.L2-3.1.12	Monitor and control remote access sessions.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	acm-certificate-expiration-check	Ensure network integrity is protected by ensuring X509 certificates are issued by AWS ACM. These certificates must be valid and unexpired. This rule requires a value for daysToExpiration (AWS Foundational Security Best Practices value: 90). The actual value should reflect your organization's policies.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	alb-http-to-https-redirection-check	To help protect data in transit, ensure that your Application Load Balancer automatically redirects unencrypted HTTP requests to HTTPS. Because sensitive data can exist, enable encryption in transit to help protect that data.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	api-gw-ssl-enabled	Ensure Amazon API Gateway REST API stages are configured with SSL certificates to allow backend systems to authenticate that requests originate from API Gateway.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	elasticsearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	elbv2-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	elb-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	elb-tls-https-listeners-only	Ensure that your Elastic Load Balancers (ELBs) are configured with SSL or HTTPS listeners. Because sensitive data can exist, enable encryption in transit to help protect that data.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	redshift-require-tls-ssl	Ensure that your Amazon Redshift clusters require TLS/SSL encryption to connect to SQL clients. Because sensitive data can exist, enable encryption in transit to help protect that data.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	s3-bucket-ssl-requests-only	To help protect data in transit, ensure that your Amazon Simple Storage Service (Amazon S3) buckets require requests to use Secure Socket Layer (SSL). Because sensitive data can exist, enable encryption in transit to help protect that data.
AC.L2-3.1.13	Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.	opensearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	api-gw-execution-logging-enabled	API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	cloudtrail-s3-dataevents-enabled	The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	cw-loggroup-retention-period-check	Ensure a minimum duration of event log data is retained for your log groups to help with troubleshooting and forensics investigations. The lack of available past event log data makes it difficult to reconstruct and identify potentially malicious events.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	elb-logging-enabled	Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	rds-logging-enabled	To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	s3-bucket-logging-enabled	Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
AU.L2-3.3.1	Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.	wafv2-logging-enabled	To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	api-gw-execution-logging-enabled	API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	cloudtrail-s3-dataevents-enabled	The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	elb-logging-enabled	Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	rds-logging-enabled	To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	s3-bucket-logging-enabled	Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
AU.L2-3.3.2	Ensure that the actions of individual system users can be uniquely traced to those users so they can be held accountable for their actions.	wafv2-logging-enabled	To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
AU.L2-3.3.4	Alert in the event of an audit logging process failure.	cloudwatch-alarm-action-check	Amazon CloudWatch alarms alert when a metric breaches the threshold for a specified number of evaluation periods. The alarm performs one or more actions based on the value of the metric or expression relative to a threshold over a number of time periods. This rule requires a value for alarmActionRequired (Config Default: True), insufficientDataActionRequired (Config Default: True), okActionRequired (Config Default: False). The actual value should reflect the alarm actions for your environment.
AU.L2-3.3.4	Alert in the event of an audit logging process failure.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
AU.L2-3.3.4	Alert in the event of an audit logging process failure.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
AU.L2-3.3.4	Alert in the event of an audit logging process failure.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
AU.L2-3.3.5	Correlate audit record review, analysis, and reporting processes for investigation and response to indications of unlawful, unauthorized, suspicious, or unusual activity.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
AU.L2-3.3.5	Correlate audit record review, analysis, and reporting processes for investigation and response to indications of unlawful, unauthorized, suspicious, or unusual activity.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	cloudwatch-log-group-encrypted	To help protect sensitive data at rest, ensure encryption is enabled for your Amazon CloudWatch Log Groups.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	cloud-trail-encryption-enabled	Because sensitive data may exist and to help protect data at rest, ensure encryption is enabled for your AWS CloudTrail trails.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	cloud-trail-log-file-validation-enabled	Utilize AWS CloudTrail log file validation to check the integrity of CloudTrail logs. Log file validation helps determine if a log file was modified or deleted or unchanged after CloudTrail delivered it. This feature is built using industry standard algorithms: SHA-256 for hashing and SHA-256 with RSA for digital signing. This makes it computationally infeasible to modify, delete or forge CloudTrail log files without detection.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-default-lock-enabled	Ensure that your Amazon Simple Storage Service (Amazon S3) bucket has lock enabled, by default. Because sensitive data can exist at rest in S3 buckets, enforce object locks at rest to help protect that data.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-policy-grantee-check	Manage access to the AWS Cloud by enabling s3_ bucket_policy_grantee_check. This rule checks that the access granted by the Amazon S3 bucket is restricted by any of the AWS principals, federated users, service principals, IP addresses, or Amazon Virtual Private Cloud (Amazon VPC) IDs that you provide.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-server-side-encryption-enabled	To help protect data at rest, ensure encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in Amazon S3 buckets, enable encryption to help protect that data.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-ssl-requests-only	To help protect data in transit, ensure that your Amazon Simple Storage Service (Amazon S3) buckets require requests to use Secure Socket Layer (SSL). Because sensitive data can exist, enable encryption in transit to help protect that data.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-bucket-versioning-enabled	Amazon Simple Storage Service (Amazon S3) bucket versioning helps keep multiple variants of an object in the same Amazon S3 bucket. Use versioning to preserve, retrieve, and restore every version of every object stored in your Amazon S3 bucket. Versioning helps you to easily recover from unintended user actions and application failures.
AU.L2-3.3.8	Protect audit information and audit logging tools from unauthorized access, modification, and deletion.	s3-default-encryption-kms	Ensure that encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in an Amazon S3 bucket, enable encryption at rest to help protect that data.
CA.L2-3.12.2	Develop and implement plans of action designed to correct deficiencies and reduce or eliminate vulnerabilities in organizational systems.	vuln-management-plan-exists (Process Check)	Ensure a vulnerability management plan is developed and implemented in order to have a formally defined processes to address vulnerabilities in your environment. This can include vulnerability management tools, environmental scanning cadence, roles and responsibilities.
CA.L2-3.12.3	Monitor security controls on an ongoing basis to ensure the continued effectiveness of the controls.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
CA.L2-3.12.3	Monitor security controls on an ongoing basis to ensure the continued effectiveness of the controls.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
CA.L2-3.12.3	Monitor security controls on an ongoing basis to ensure the continued effectiveness of the controls.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
CM.L2-3.4.1	Establish and maintain baseline configurations and inventories of organizational systems (including hardware, software, firmware, and documentation) throughout the respective system development life cycles.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
CM.L2-3.4.1	Establish and maintain baseline configurations and inventories of organizational systems (including hardware, software, firmware, and documentation) throughout the respective system development life cycles.	ec2-managedinstance-patch-compliance-status-check	Enable this rule to help with identification and documentation of Amazon Elastic Compute Cloud (Amazon EC2) vulnerabilities. The rule checks if Amazon EC2 instance patch compliance in AWS Systems Manager as required by your organization's policies and procedures.
CM.L2-3.4.1	Establish and maintain baseline configurations and inventories of organizational systems (including hardware, software, firmware, and documentation) throughout the respective system development life cycles.	ec2-stopped-instance	Enable this rule to help with the baseline configuration of Amazon Elastic Compute Cloud (Amazon EC2) instances by checking whether Amazon EC2 instances have been stopped for more than the allowed number of days, according to your organization's standards.
CM.L2-3.4.1	Establish and maintain baseline configurations and inventories of organizational systems (including hardware, software, firmware, and documentation) throughout the respective system development life cycles.	ec2-volume-inuse-check	This rule ensures that Amazon Elastic Block Store volumes that are attached to Amazon Elastic Compute Cloud (Amazon EC2) instances are marked for deletion when an instance is terminated. If an Amazon EBS volume isn't deleted when the instance that it's attached to is terminated, it may violate the concept of least functionality.
CM.L2-3.4.1	Establish and maintain baseline configurations and inventories of organizational systems (including hardware, software, firmware, and documentation) throughout the respective system development life cycles.	eip-attached	This rule ensures Elastic IPs allocated to a Amazon Virtual Private Cloud (Amazon VPC) are attached to Amazon Elastic Compute Cloud (Amazon EC2) instances or in-use Elastic Network Interfaces. This rule helps monitor unused EIPs in your environment.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	account-part-of-organizations	Centralized management of AWS accounts within AWS Organizations helps to ensure that accounts are compliant. The lack of centralized account governance may lead to inconsistent account configurations, which may expose resources and sensitive data.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	cloudtrail-security-trail-enabled	This rule helps ensure the use of AWS recommended security best practices for AWS CloudTrail, by checking for the enablement of multiple settings. These include the use of log encryption, log validation, and enabling AWS CloudTrail in multiple regions.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	cloud-trail-log-file-validation-enabled	Utilize AWS CloudTrail log file validation to check the integrity of CloudTrail logs. Log file validation helps determine if a log file was modified or deleted or unchanged after CloudTrail delivered it. This feature is built using industry standard algorithms: SHA-256 for hashing and SHA-256 with RSA for digital signing. This makes it computationally infeasible to modify, delete or forge CloudTrail log files without detection.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	ec2-instance-managed-by-systems-manager	An inventory of the software platforms and applications within the organization is possible by managing Amazon Elastic Compute Cloud (Amazon EC2) instances with AWS Systems Manager. Use AWS Systems Manager to provide detailed system configurations, operating system patch levels, services name and type, software installations, application name, publisher and version, and other details about your environment.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	ec2-managedinstance-patch-compliance-status-check	Enable this rule to help with identification and documentation of Amazon Elastic Compute Cloud (Amazon EC2) vulnerabilities. The rule checks if Amazon EC2 instance patch compliance in AWS Systems Manager as required by your organization's policies and procedures.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	elastic-beanstalk-managed-updates-enabled	Enabling managed platform updates for an Amazon Elastic Beanstalk environment ensures that the latest available platform fixes, updates, and features for the environment are installed. Keeping up to date with patch installation is a best practice in securing systems.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	rds-automatic-minor-version-upgrade-enabled	Enable automatic minor version upgrades on your Amazon Relational Database Service (RDS) instances to ensure the latest minor version updates to the Relational Database Management System (RDBMS) are installed, which may include security patches and bug fixes.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	redshift-cluster-maintenancesettings-check	This rule ensures that Amazon Redshift clusters have the preferred settings for your organization. Specifically, that they have preferred maintenance windows and automated snapshot retention periods for the database. This rule requires you to set the allowVersionUpgrade. The default is true. It also lets you optionally set the preferredMaintenanceWindow (the default is sat:16:00-sat:16:30), and the automatedSnapshotRetentionPeriod (the default is 1). The actual values should reflect your organization's policies.
CM.L2-3.4.2	Establish and enforce security configuration settings for information technology products employed in organizational systems.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	api-gw-execution-logging-enabled	API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	cloudtrail-s3-dataevents-enabled	The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	ec2-instance-managed-by-systems-manager	An inventory of the software platforms and applications within the organization is possible by managing Amazon Elastic Compute Cloud (Amazon EC2) instances with AWS Systems Manager. Use AWS Systems Manager to provide detailed system configurations, operating system patch levels, services name and type, software installations, application name, publisher and version, and other details about your environment.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	ec2-managedinstance-patch-compliance-status-check	Enable this rule to help with identification and documentation of Amazon Elastic Compute Cloud (Amazon EC2) vulnerabilities. The rule checks if Amazon EC2 instance patch compliance in AWS Systems Manager as required by your organization's policies and procedures.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	elb-logging-enabled	Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	rds-logging-enabled	To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	s3-bucket-logging-enabled	Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
CM.L2-3.4.3	Track, review, approve, or disapprove, and log changes to organizational systems.	wafv2-logging-enabled	To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	autoscaling-launch-config-public-ip-disabled	If you configure your Network Interfaces with a public IP address, then the associated resources to those Network Interfaces are reachable from the internet. EC2 resources should not be publicly accessible, as this may allow unintended access to your applications or servers.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	ec2-instance-managed-by-systems-manager	An inventory of the software platforms and applications within the organization is possible by managing Amazon Elastic Compute Cloud (Amazon EC2) instances with AWS Systems Manager. Use AWS Systems Manager to provide detailed system configurations, operating system patch levels, services name and type, software installations, application name, publisher and version, and other details about your environment.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	ec2-volume-inuse-check	This rule ensures that Amazon Elastic Block Store volumes that are attached to Amazon Elastic Compute Cloud (Amazon EC2) instances are marked for deletion when an instance is terminated. If an Amazon EBS volume isn't deleted when the instance that it's attached to is terminated, it may violate the concept of least functionality.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	subnet-auto-assign-public-ip-disabled	Manage access to the AWS Cloud by ensuring Amazon Virtual Private Cloud (VPC) subnets are not automatically assigned a public IP address. Amazon Elastic Compute Cloud (EC2) instances that are launched into subnets that have this attribute enabled have a public IP address assigned to their primary network interface.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
CM.L2-3.4.6	Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities.	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	autoscaling-launch-config-public-ip-disabled	If you configure your Network Interfaces with a public IP address, then the associated resources to those Network Interfaces are reachable from the internet. EC2 resources should not be publicly accessible, as this may allow unintended access to your applications or servers.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	subnet-auto-assign-public-ip-disabled	Manage access to the AWS Cloud by ensuring Amazon Virtual Private Cloud (VPC) subnets are not automatically assigned a public IP address. Amazon Elastic Compute Cloud (EC2) instances that are launched into subnets that have this attribute enabled have a public IP address assigned to their primary network interface.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
CM.L2-3.4.7	Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
CM.L2-3.4.9	Control and monitor user-installed software.	ec2-instance-managed-by-systems-manager	An inventory of the software platforms and applications within the organization is possible by managing Amazon Elastic Compute Cloud (Amazon EC2) instances with AWS Systems Manager. Use AWS Systems Manager to provide detailed system configurations, operating system patch levels, services name and type, software installations, application name, publisher and version, and other details about your environment.
CM.L2-3.4.9	Control and monitor user-installed software.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
CM.L2-3.4.9	Control and monitor user-installed software.	ec2-managedinstance-patch-compliance-status-check	Enable this rule to help with identification and documentation of Amazon Elastic Compute Cloud (Amazon EC2) vulnerabilities. The rule checks if Amazon EC2 instance patch compliance in AWS Systems Manager as required by your organization's policies and procedures.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	api-gw-execution-logging-enabled	API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	cloudtrail-s3-dataevents-enabled	The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	elb-logging-enabled	Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	rds-logging-enabled	To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	s3-bucket-logging-enabled	Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
IA.L1-3.5.1	Identify information system users, processes acting on behalf of users, or devices.	wafv2-logging-enabled	To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
IA.L1-3.5.2	Authenticate (or verify) the identities of those users, processes, or devices, as a prerequisite to allowing access to organizational information systems.	emr-kerberos-enabled	The access permissions and authorizations can be managed and incorporated with the principles of least privilege and separation of duties, by enabling Kerberos for Amazon EMR clusters. In Kerberos, the services and the users that need to authenticate are known as principals. The principals exist within a Kerberos realm. Within the realm, a Kerberos server is known as the key distribution center (KDC). It provides a means for the principals to authenticate. The KDC authenticates by issuing tickets for authentication. The KDC maintains a database of the principals within its realm, their passwords, and other administrative information about each principal.
IA.L1-3.5.2	Authenticate (or verify) the identities of those users, processes, or devices, as a prerequisite to allowing access to organizational information systems.	iam-password-policy	The identities and the credentials are issued, managed, and verified based on an organizational IAM password policy. They meet or exceed requirements as stated by NIST SP 800-63 and the AWS Foundational Security Best Practices standard for password strength. This rule allows you to optionally set RequireUppercaseCharacters (AWS Foundational Security Best Practices value: true), RequireLowercaseCharacters (AWS Foundational Security Best Practices value: true), RequireSymbols (AWS Foundational Security Best Practices value: true), RequireNumbers (AWS Foundational Security Best Practices value: true), MinimumPasswordLength (AWS Foundational Security Best Practices value: 14), PasswordReusePrevention (AWS Foundational Security Best Practices value: 24), and MaxPasswordAge (AWS Foundational Security Best Practices value: 90) for your IAM Password Policy. The actual values should reflect your organization's policies.
IA.L1-3.5.2	Authenticate (or verify) the identities of those users, processes, or devices, as a prerequisite to allowing access to organizational information systems.	iam-user-mfa-enabled	Enable this rule to restrict access to resources in the AWS Cloud. This rule ensures multi-factor authentication (MFA) is enabled for all users. MFA adds an extra layer of protection on top of sign-in credentials. Reduce the incidents of compromised accounts by requiring MFA for users.
IA.L1-3.5.2	Authenticate (or verify) the identities of those users, processes, or devices, as a prerequisite to allowing access to organizational information systems.	mfa-enabled-for-iam-console-access	Manage access to resources in the AWS Cloud by ensuring that MFA is enabled for all AWS Identity and Access Management (IAM) users that have a console password. MFA adds an extra layer of protection on top of sign-in credentials. By requiring MFA for users, you can reduce incidents of compromised accounts and keep sensitive data from being accessed by unauthorized users.
IA.L1-3.5.2	Authenticate (or verify) the identities of those users, processes, or devices, as a prerequisite to allowing access to organizational information systems.	root-account-hardware-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring hardware MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
IA.L1-3.5.2	Authenticate (or verify) the identities of those users, processes, or devices, as a prerequisite to allowing access to organizational information systems.	root-account-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
IA.L2-3.5.3	Use multifactor authentication for local and network access to privileged accounts and for network access to non-privileged accounts.	iam-user-mfa-enabled	Enable this rule to restrict access to resources in the AWS Cloud. This rule ensures multi-factor authentication (MFA) is enabled for all users. MFA adds an extra layer of protection on top of sign-in credentials. Reduce the incidents of compromised accounts by requiring MFA for users.
IA.L2-3.5.3	Use multifactor authentication for local and network access to privileged accounts and for network access to non-privileged accounts.	mfa-enabled-for-iam-console-access	Manage access to resources in the AWS Cloud by ensuring that MFA is enabled for all AWS Identity and Access Management (IAM) users that have a console password. MFA adds an extra layer of protection on top of sign-in credentials. By requiring MFA for users, you can reduce incidents of compromised accounts and keep sensitive data from being accessed by unauthorized users.
IA.L2-3.5.3	Use multifactor authentication for local and network access to privileged accounts and for network access to non-privileged accounts.	root-account-hardware-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring hardware MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
IA.L2-3.5.3	Use multifactor authentication for local and network access to privileged accounts and for network access to non-privileged accounts.	root-account-mfa-enabled	Manage access to resources in the AWS Cloud by ensuring MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for sign-in credentials. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
IA.L2-3.5.6	Disable identifiers after a defined period of inactivity.	iam-password-policy	The identities and the credentials are issued, managed, and verified based on an organizational IAM password policy. They meet or exceed requirements as stated by NIST SP 800-63 and the AWS Foundational Security Best Practices standard for password strength. This rule allows you to optionally set RequireUppercaseCharacters (AWS Foundational Security Best Practices value: true), RequireLowercaseCharacters (AWS Foundational Security Best Practices value: true), RequireSymbols (AWS Foundational Security Best Practices value: true), RequireNumbers (AWS Foundational Security Best Practices value: true), MinimumPasswordLength (AWS Foundational Security Best Practices value: 14), PasswordReusePrevention (AWS Foundational Security Best Practices value: 24), and MaxPasswordAge (AWS Foundational Security Best Practices value: 90) for your IAM Password Policy. The actual values should reflect your organization's policies.
IA.L2-3.5.6	Disable identifiers after a defined period of inactivity.	iam-user-unused-credentials-check	AWS Identity and Access Management (IAM) can help you with access permissions and authorizations by checking for IAM passwords and access keys that are not used for a specified time period. If these unused credentials are identified, you should disable and/or remove the credentials, as this may violate the principle of least privilege. This rule requires you to set a value to the maxCredentialUsageAge (Config Default: 90). The actual value should reflect your organization's policies.
IA.L2-3.5.7	Enforce a minimum password complexity and change of characters when new passwords are created.	iam-password-policy	The identities and the credentials are issued, managed, and verified based on an organizational IAM password policy. They meet or exceed requirements as stated by NIST SP 800-63 and the AWS Foundational Security Best Practices standard for password strength. This rule allows you to optionally set RequireUppercaseCharacters (AWS Foundational Security Best Practices value: true), RequireLowercaseCharacters (AWS Foundational Security Best Practices value: true), RequireSymbols (AWS Foundational Security Best Practices value: true), RequireNumbers (AWS Foundational Security Best Practices value: true), MinimumPasswordLength (AWS Foundational Security Best Practices value: 14), PasswordReusePrevention (AWS Foundational Security Best Practices value: 24), and MaxPasswordAge (AWS Foundational Security Best Practices value: 90) for your IAM Password Policy. The actual values should reflect your organization's policies.
IA.L2-3.5.8	Prohibit password reuse for a specified number of generations.	iam-password-policy	The identities and the credentials are issued, managed, and verified based on an organizational IAM password policy. They meet or exceed requirements as stated by NIST SP 800-63 and the AWS Foundational Security Best Practices standard for password strength. This rule allows you to optionally set RequireUppercaseCharacters (AWS Foundational Security Best Practices value: true), RequireLowercaseCharacters (AWS Foundational Security Best Practices value: true), RequireSymbols (AWS Foundational Security Best Practices value: true), RequireNumbers (AWS Foundational Security Best Practices value: true), MinimumPasswordLength (AWS Foundational Security Best Practices value: 14), PasswordReusePrevention (AWS Foundational Security Best Practices value: 24), and MaxPasswordAge (AWS Foundational Security Best Practices value: 90) for your IAM Password Policy. The actual values should reflect your organization's policies.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	alb-http-drop-invalid-header-enabled	Ensure that your Elastic Load Balancers (ELB) are configured to drop http headers. Because sensitive data can exist, enable encryption in transit to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	alb-http-to-https-redirection-check	To help protect data in transit, ensure that your Application Load Balancer automatically redirects unencrypted HTTP requests to HTTPS. Because sensitive data can exist, enable encryption in transit to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	api-gw-cache-enabled-and-encrypted	To help protect data at rest, ensure encryption is enabled for your API Gateway stage's cache. Because sensitive data can be captured for the API method, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	api-gw-ssl-enabled	Ensure Amazon API Gateway REST API stages are configured with SSL certificates to allow backend systems to authenticate that requests originate from API Gateway.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	ec2-ebs-encryption-by-default	To help protect data at rest, ensure that encryption is enabled for your Amazon Elastic Block Store (Amazon EBS) volumes. Because sensitive data can exist at rest in these volumes, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	efs-encrypted-check	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon Elastic File System (EFS).
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	elasticsearch-encrypted-at-rest	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon OpenSearch Service (OpenSearch Service) domains.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	elasticsearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	elbv2-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	elb-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	elb-tls-https-listeners-only	Ensure that your Elastic Load Balancers (ELBs) are configured with SSL or HTTPS listeners. Because sensitive data can exist, enable encryption in transit to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	encrypted-volumes	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon Elastic Block Store (Amazon EBS) volumes.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	rds-snapshot-encrypted	Ensure that encryption is enabled for your Amazon Relational Database Service (Amazon RDS) snapshots. Because sensitive data can exist at rest, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	rds-storage-encrypted	To help protect data at rest, ensure that encryption is enabled for your Amazon Relational Database Service (Amazon RDS) instances. Because sensitive data can exist at rest in Amazon RDS instances, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	redshift-cluster-kms-enabled	To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your Amazon Redshift cluster. Because sensitive data can exist at rest in Redshift clusters, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	redshift-require-tls-ssl	Ensure that your Amazon Redshift clusters require TLS/SSL encryption to connect to SQL clients. Because sensitive data can exist, enable encryption in transit to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	s3-bucket-server-side-encryption-enabled	To help protect data at rest, ensure encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in Amazon S3 buckets, enable encryption to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	s3-bucket-ssl-requests-only	To help protect data in transit, ensure that your Amazon Simple Storage Service (Amazon S3) buckets require requests to use Secure Socket Layer (SSL). Because sensitive data can exist, enable encryption in transit to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	s3-default-encryption-kms	Ensure that encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in an Amazon S3 bucket, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	sagemaker-endpoint-configuration-kms-key-configured	To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your SageMaker endpoint. Because sensitive data can exist at rest in SageMaker endpoint, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	sagemaker-notebook-instance-kms-key-configured	To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your SageMaker notebook. Because sensitive data can exist at rest in SageMaker notebook, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	sns-encrypted-kms	To help protect data at rest, ensure that your Amazon Simple Notification Service (Amazon SNS) topics require encryption using AWS Key Management Service (AWS KMS). Because sensitive data can exist at rest in published messages, enable encryption at rest to help protect that data.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	opensearch-encrypted-at-rest	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon OpenSearch Service domains.
IA.L2-3.5.10	Store and transmit only cryptographically-protected passwords.	opensearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
IR.L2-3.6.1	Establish an operational incident-handling capability for organizational systems that includes preparation, detection, analysis, containment, recovery, and user response activities.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
IR.L2-3.6.1	Establish an operational incident-handling capability for organizational systems that includes preparation, detection, analysis, containment, recovery, and user response activities.	guardduty-non-archived-findings	Amazon GuardDuty helps you understand the impact of an incident by classifying findings by severity: low, medium, and high. You can use these classifications for determining remediation strategies and priorities. This rule allows you to optionally set the daysLowSev (Config Default: 30), daysMediumSev (Config Default: 7), and daysHighSev (Config Default: 1) for non-archived findings, as required by your organization's policies.
IR.L2-3.6.1	Establish an operational incident-handling capability for organizational systems that includes preparation, detection, analysis, containment, recovery, and user response activities.	lambda-dlq-check	Enable this rule to help notify the appropriate personnel through Amazon Simple Queue Service (Amazon SQS) or Amazon Simple Notification Service (Amazon SNS) when a function has failed.
IR.L2-3.6.1	Establish an operational incident-handling capability for organizational systems that includes preparation, detection, analysis, containment, recovery, and user response activities.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
IR.L2-3.6.3	Test the organizational incident response capability.	response-plan-tested (Process Check)	Ensure Incident response and recovery plans are tested. This can assist in understanding if your plan will be effective during an incident and if any gaps or updates need to be addressed.
MA.L2-3.7.5	Require multifactor authentication to establish nonlocal maintenance sessions from external network connections and terminate such connections when nonlocal maintenance is complete.	iam-user-mfa-enabled	Enable this rule to restrict access to resources in the AWS Cloud. This rule ensures multi-factor authentication (MFA) is enabled for all users. MFA adds an extra layer of protection on top of sign-in credentials. Reduce the incidents of compromised accounts by requiring MFA for users.
MA.L2-3.7.5	Require multifactor authentication to establish nonlocal maintenance sessions from external network connections and terminate such connections when nonlocal maintenance is complete.	mfa-enabled-for-iam-console-access	Manage access to resources in the AWS Cloud by ensuring that MFA is enabled for all AWS Identity and Access Management (IAM) users that have a console password. MFA adds an extra layer of protection on top of sign-in credentials. By requiring MFA for users, you can reduce incidents of compromised accounts and keep sensitive data from being accessed by unauthorized users.
RA.L2-3.11.2	Scan for vulnerabilities in organizational systems and applications periodically and when new vulnerabilities affecting those systems and applications are identified.	ec2-managedinstance-patch-compliance-status-check	Enable this rule to help with identification and documentation of Amazon Elastic Compute Cloud (Amazon EC2) vulnerabilities. The rule checks if Amazon EC2 instance patch compliance in AWS Systems Manager as required by your organization's policies and procedures.
RA.L2-3.11.2	Scan for vulnerabilities in organizational systems and applications periodically and when new vulnerabilities affecting those systems and applications are identified.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
RA.L2-3.11.2	Scan for vulnerabilities in organizational systems and applications periodically and when new vulnerabilities affecting those systems and applications are identified.	guardduty-non-archived-findings	Amazon GuardDuty helps you understand the impact of an incident by classifying findings by severity: low, medium, and high. You can use these classifications for determining remediation strategies and priorities. This rule allows you to optionally set the daysLowSev (Config Default: 30), daysMediumSev (Config Default: 7), and daysHighSev (Config Default: 1) for non-archived findings, as required by your organization's policies.
RA.L2-3.11.2	Scan for vulnerabilities in organizational systems and applications periodically and when new vulnerabilities affecting those systems and applications are identified.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	alb-http-drop-invalid-header-enabled	Ensure that your Elastic Load Balancers (ELB) are configured to drop http headers. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	alb-http-to-https-redirection-check	To help protect data in transit, ensure that your Application Load Balancer automatically redirects unencrypted HTTP requests to HTTPS. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	alb-waf-enabled	Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	api-gw-associated-with-waf	AWS WAF enables you to configure a set of rules (called a web access control list (web ACL)) that allow, block, or count web requests based on customizable web security rules and conditions that you define. Ensure your Amazon API Gateway stage is associated with a WAF Web ACL to protect it from malicious attacks
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	cloudwatch-alarm-action-check	Amazon CloudWatch alarms alert when a metric breaches the threshold for a specified number of evaluation periods. The alarm performs one or more actions based on the value of the metric or expression relative to a threshold over a number of time periods. This rule requires a value for alarmActionRequired (Config Default: True), insufficientDataActionRequired (Config Default: True), okActionRequired (Config Default: False). The actual value should reflect the alarm actions for your environment.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	elasticsearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	elb-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	elb-tls-https-listeners-only	Ensure that your Elastic Load Balancers (ELBs) are configured with SSL or HTTPS listeners. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	ec2-instances-in-vpc	Deploy Amazon Elastic Compute Cloud (Amazon EC2) instances within an Amazon Virtual Private Cloud (Amazon VPC) to enable secure communication between an instance and other services within the amazon VPC, without requiring an internet gateway, NAT device, or VPN connection. All traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. Assign Amazon EC2 instances to an Amazon VPC to properly manage access.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	lambda-inside-vpc	Deploy AWS Lambda functions within an Amazon Virtual Private Cloud (Amazon VPC) for a secure communication between a function and other services within the Amazon VPC. With this configuration, there is no requirement for an internet gateway, NAT device, or VPN connection. All the traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. To properly manage access, AWS Lambda functions should be assigned to a VPC.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	redshift-require-tls-ssl	Ensure that your Amazon Redshift clusters require TLS/SSL encryption to connect to SQL clients. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	s3-bucket-ssl-requests-only	To help protect data in transit, ensure that your Amazon Simple Storage Service (Amazon S3) buckets require requests to use Secure Socket Layer (SSL). Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
SC.L1-3.13.1	Monitor, control, and protect organizational communications (i.e., information transmitted or received by organizational information systems) at the external boundaries and key internal boundaries of the information systems.	opensearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	account-part-of-organizations	Centralized management of AWS accounts within AWS Organizations helps to ensure that accounts are compliant. The lack of centralized account governance may lead to inconsistent account configurations, which may expose resources and sensitive data.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	alb-waf-enabled	Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	api-gw-associated-with-waf	AWS WAF enables you to configure a set of rules (called a web access control list (web ACL)) that allow, block, or count web requests based on customizable web security rules and conditions that you define. Ensure your Amazon API Gateway stage is associated with a WAF Web ACL to protect it from malicious attacks
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	autoscaling-launch-config-public-ip-disabled	If you configure your Network Interfaces with a public IP address, then the associated resources to those Network Interfaces are reachable from the internet. EC2 resources should not be publicly accessible, as this may allow unintended access to your applications or servers.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	backup-plan-min-frequency-and-min-retention-check	To help with data back-up processes, ensure your AWS Backup plan is set for a minimum frequency and retention. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements. This rule allows you to set the requiredFrequencyValue (Config default: 1), requiredRetentionDays (Config default: 35) and requiredFrequencyUnit (Config default: days) parameters. The actual value should reflect your organizations requirements.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	cloudtrail-security-trail-enabled	This rule helps ensure the use of AWS recommended security best practices for AWS CloudTrail, by checking for the enablement of multiple settings. These include the use of log encryption, log validation, and enabling AWS CloudTrail in multiple regions.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	codebuild-project-envvar-awscred-check	Ensure authentication credentials AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY do not exist within AWS Codebuild project environments. Do not store these variables in clear text. Storing these variables in clear text leads to unintended data exposure and unauthorized access.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	codebuild-project-source-repo-url-check	Ensure the GitHub or Bitbucket source repository URL does not contain personal access tokens, sign-in credentials within AWS Codebuild project environments. Use OAuth instead of personal access tokens or sign-in credentials to grant authorization for accessing GitHub or Bitbucket repositories.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	db-instance-backup-enabled	The backup feature of Amazon RDS creates backups of your databases and transaction logs. Amazon RDS automatically creates a storage volume snapshot of your DB instance, backing up the entire DB instance. The system allows you to set specific retention periods to meet your resilience requirements.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	dynamodb-autoscaling-enabled	Amazon DynamoDB auto scaling uses the AWS Application Auto Scaling service to adjust provisioned throughput capacity that automatically responds to actual traffic patterns. This enables a table or a global secondary index to increase its provisioned read/write capacity to handle sudden increases in traffic, without throttling.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	dynamodb-in-backup-plan	To help with data back-up processes, ensure your Amazon DynamoDB tables are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	dynamodb-pitr-enabled	Enable this rule to check that information has been backed up. It also maintains the backups by ensuring that point-in-time recovery is enabled in Amazon DynamoDB. The recovery maintains continuous backups of your table for the last 35 days.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	ebs-in-backup-plan	To help with data back-up processes, ensure your Amazon Elastic Block Store (Amazon EBS) volumes are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	ebs-optimized-instance	An optimized instance in Amazon Elastic Block Store (Amazon EBS) provides additional, dedicated capacity for Amazon EBS I/O operations. This optimization provides the most efficient performance for your EBS volumes by minimizing contention between Amazon EBS I/O operations and other traffic from your instance.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	ec2-instance-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	efs-in-backup-plan	To help with data back-up processes, ensure your Amazon Elastic File System (Amazon EFS) file systems are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	elasticache-redis-cluster-automatic-backup-check	When automatic backups are enabled, Amazon ElastiCache creates a backup of the cluster on a daily basis. The backup can be retained for a number of days as specified by your organization. Automatic backups can help guard against data loss. If a failure occurs, you can create a new cluster, which restores your data from the most recent backup.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	elasticsearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	elb-cross-zone-load-balancing-enabled	Enable cross-zone load balancing for your Elastic Load Balancers (ELBs) to help maintain adequate capacity and availability. The cross-zone load balancing reduces the need to maintain equivalent numbers of instances in each enabled availability zone. It also improves your application's ability to handle the loss of one or more instances.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	elb-deletion-protection-enabled	This rule ensures that Elastic Load Balancing has deletion protection enabled. Use this feature to prevent your load balancer from being accidentally or maliciously deleted, which can lead to loss of availability for your applications.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	emr-master-no-public-ip	Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	ec2-instances-in-vpc	Deploy Amazon Elastic Compute Cloud (Amazon EC2) instances within an Amazon Virtual Private Cloud (Amazon VPC) to enable secure communication between an instance and other services within the amazon VPC, without requiring an internet gateway, NAT device, or VPN connection. All traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. Assign Amazon EC2 instances to an Amazon VPC to properly manage access.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	lambda-inside-vpc	Deploy AWS Lambda functions within an Amazon Virtual Private Cloud (Amazon VPC) for a secure communication between a function and other services within the Amazon VPC. With this configuration, there is no requirement for an internet gateway, NAT device, or VPN connection. All the traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. To properly manage access, AWS Lambda functions should be assigned to a VPC.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	rds-instance-deletion-protection-enabled	Ensure Amazon Relational Database Service (Amazon RDS) instances have deletion protection enabled. Use deletion protection to prevent your Amazon RDS instances from being accidentally or maliciously deleted, which can lead to loss of availability for your applications.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	rds-in-backup-plan	To help with data back-up processes, ensure your Amazon Relational Database Service (Amazon RDS) instances are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	rds-multi-az-support	Multi-AZ support in Amazon Relational Database Service (Amazon RDS) provides enhanced availability and durability for database instances. When you provision a Multi-AZ database instance, Amazon RDS automatically creates a primary database instance, and synchronously replicates the data to a standby instance in a different Availability Zone. Each Availability Zone runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable. In case of an infrastructure failure, Amazon RDS performs an automatic failover to the standby so that you can resume database operations as soon as the failover is complete.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	redshift-backup-enabled	To help with data back-up processes, ensure your Amazon Redshift clusters have automated snapshots. When automated snapshots are enabled for a cluster, Redshift periodically takes snapshots of that cluster. By default, Redshift takes a snapshot every eight hours or every 5 GB for each node of data changes, or whichever comes first.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-bucket-default-lock-enabled	Ensure that your Amazon Simple Storage Service (Amazon S3) bucket has lock enabled, by default. Because sensitive data can exist at rest in S3 buckets, enforce object locks at rest to help protect that data.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-bucket-replication-enabled	Amazon Simple Storage Service (Amazon S3) Cross-Region Replication (CRR) supports maintaining adequate capacity and availability. CRR enables automatic, asynchronous copying of objects across Amazon S3 buckets to help ensure that data availability is maintained.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	s3-bucket-versioning-enabled	Amazon Simple Storage Service (Amazon S3) bucket versioning helps keep multiple variants of an object in the same Amazon S3 bucket. Use versioning to preserve, retrieve, and restore every version of every object stored in your Amazon S3 bucket. Versioning helps you to easily recover from unintended user actions and application failures.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	subnet-auto-assign-public-ip-disabled	Manage access to the AWS Cloud by ensuring Amazon Virtual Private Cloud (VPC) subnets are not automatically assigned a public IP address. Amazon Elastic Compute Cloud (EC2) instances that are launched into subnets that have this attribute enabled have a public IP address assigned to their primary network interface.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	vpc-vpn-2-tunnels-up	Redundant Site-to-Site VPN tunnels can be implemented to achieve resilience requirements. It uses two tunnels to help ensure connectivity in case one of the Site-to-Site VPN connections becomes unavailable. To protect against a loss of connectivity, in case your customer gateway becomes unavailable, you can set up a second Site-to-Site VPN connection to your Amazon Virtual Private Cloud (Amazon VPC) and virtual private gateway by using a second customer gateway.
SC.L2-3.13.2	Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems.	opensearch-in-vpc-only	Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service domains are within an Amazon Virtual Private Cloud (Amazon VPC). An Amazon OpenSearch Service domain within an Amazon VPC enables secure communication between Amazon OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	dms-replication-not-public	Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	ebs-snapshot-public-restorable-check	Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	restricted-ssh	Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	internet-gateway-authorized-vpc-only	Manage access to resources in the AWS Cloud by ensuring that internet gateways are only attached to authorized Amazon Virtual Private Cloud (Amazon VPC). Internet gateways allow bi-directional internet access to and from the Amazon VPC that can potentially lead to unauthorized access to Amazon VPC resources.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	lambda-function-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	no-unrestricted-route-to-igw	Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	rds-instance-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	rds-snapshots-public-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	redshift-cluster-public-access-check	Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	restricted-common-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	s3-account-level-public-access-blocks-periodic	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	s3-bucket-level-public-access-prohibited	Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	s3-bucket-public-read-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	s3-bucket-public-write-prohibited	Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	sagemaker-notebook-no-direct-internet-access	Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	ssm-document-not-public	Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	vpc-default-security-group-closed	Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
SC.L2-3.13.4	Prevent unauthorized and unintended information transfer from shared system resources.	vpc-sg-open-only-to-authorized-ports	Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	acm-certificate-expiration-check	Ensure network integrity is protected by ensuring X509 certificates are issued by AWS ACM. These certificates must be valid and unexpired. This rule requires a value for daysToExpiration (AWS Foundational Security Best Practices value: 90). The actual value should reflect your organization's policies.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	alb-http-drop-invalid-header-enabled	Ensure that your Elastic Load Balancers (ELB) are configured to drop http headers. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	alb-http-to-https-redirection-check	To help protect data in transit, ensure that your Application Load Balancer automatically redirects unencrypted HTTP requests to HTTPS. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	api-gw-ssl-enabled	Ensure Amazon API Gateway REST API stages are configured with SSL certificates to allow backend systems to authenticate that requests originate from API Gateway.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	elasticsearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	elbv2-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	elb-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	elb-tls-https-listeners-only	Ensure that your Elastic Load Balancers (ELBs) are configured with SSL or HTTPS listeners. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	redshift-require-tls-ssl	Ensure that your Amazon Redshift clusters require TLS/SSL encryption to connect to SQL clients. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	s3-bucket-ssl-requests-only	To help protect data in transit, ensure that your Amazon Simple Storage Service (Amazon S3) buckets require requests to use Secure Socket Layer (SSL). Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.8	Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.	opensearch-node-to-node-encryption-check	Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.10	Establish and manage cryptographic keys for cryptography employed in organizational systems.	cmk-backing-key-rotation-enabled	Enable key rotation to ensure that keys are rotated after they have reached the end of their crypto period.
SC.L2-3.13.10	Establish and manage cryptographic keys for cryptography employed in organizational systems.	kms-cmk-not-scheduled-for-deletion	To help protect data at rest, ensure necessary customer master keys (CMKs) are not scheduled for deletion in AWS Key Management Service (AWS KMS). Because key deletion is necessary at times, this rule can assist in checking for all keys scheduled for deletion, in case a key was scheduled unintentionally.
SC.L2-3.13.15	Protect the authenticity of communications sessions.	alb-http-to-https-redirection-check	To help protect data in transit, ensure that your Application Load Balancer automatically redirects unencrypted HTTP requests to HTTPS. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.15	Protect the authenticity of communications sessions.	api-gw-ssl-enabled	Ensure Amazon API Gateway REST API stages are configured with SSL certificates to allow backend systems to authenticate that requests originate from API Gateway.
SC.L2-3.13.15	Protect the authenticity of communications sessions.	elbv2-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
SC.L2-3.13.15	Protect the authenticity of communications sessions.	elb-acm-certificate-required	Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
SC.L2-3.13.15	Protect the authenticity of communications sessions.	elb-tls-https-listeners-only	Ensure that your Elastic Load Balancers (ELBs) are configured with SSL or HTTPS listeners. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.15	Protect the authenticity of communications sessions.	redshift-require-tls-ssl	Ensure that your Amazon Redshift clusters require TLS/SSL encryption to connect to SQL clients. Because sensitive data can exist, enable encryption in transit to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	api-gw-cache-enabled-and-encrypted	To help protect data at rest, ensure encryption is enabled for your API Gateway stage's cache. Because sensitive data can be captured for the API method, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	cloudwatch-log-group-encrypted	To help protect sensitive data at rest, ensure encryption is enabled for your Amazon CloudWatch Log Groups.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	cloud-trail-encryption-enabled	Because sensitive data may exist and to help protect data at rest, ensure encryption is enabled for your AWS CloudTrail trails.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	ec2-ebs-encryption-by-default	To help protect data at rest, ensure that encryption is enabled for your Amazon Elastic Block Store (Amazon EBS) volumes. Because sensitive data can exist at rest in these volumes, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	efs-encrypted-check	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon Elastic File System (EFS).
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	elasticsearch-encrypted-at-rest	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon OpenSearch Service (OpenSearch Service) domains.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	encrypted-volumes	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon Elastic Block Store (Amazon EBS) volumes.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	rds-snapshot-encrypted	Ensure that encryption is enabled for your Amazon Relational Database Service (Amazon RDS) snapshots. Because sensitive data can exist at rest, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	rds-storage-encrypted	To help protect data at rest, ensure that encryption is enabled for your Amazon Relational Database Service (Amazon RDS) instances. Because sensitive data can exist at rest in Amazon RDS instances, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	redshift-cluster-kms-enabled	To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your Amazon Redshift cluster. Because sensitive data can exist at rest in Redshift clusters, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	s3-bucket-server-side-encryption-enabled	To help protect data at rest, ensure encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in Amazon S3 buckets, enable encryption to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	s3-default-encryption-kms	Ensure that encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in an Amazon S3 bucket, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	sagemaker-endpoint-configuration-kms-key-configured	To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your SageMaker endpoint. Because sensitive data can exist at rest in SageMaker endpoint, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	sagemaker-notebook-instance-kms-key-configured	To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your SageMaker notebook. Because sensitive data can exist at rest in SageMaker notebook, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	sns-encrypted-kms	To help protect data at rest, ensure that your Amazon Simple Notification Service (Amazon SNS) topics require encryption using AWS Key Management Service (AWS KMS). Because sensitive data can exist at rest in published messages, enable encryption at rest to help protect that data.
SC.L2-3.13.16	Protect the confidentiality of CUI at rest.	opensearch-encrypted-at-rest	Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon OpenSearch Service domains.
SI.L1-3.14.1	Identify, report, and correct information and information system flaws in a timely manner.	cloudwatch-alarm-action-check	Amazon CloudWatch alarms alert when a metric breaches the threshold for a specified number of evaluation periods. The alarm performs one or more actions based on the value of the metric or expression relative to a threshold over a number of time periods. This rule requires a value for alarmActionRequired (Config Default: True), insufficientDataActionRequired (Config Default: True), okActionRequired (Config Default: False). The actual value should reflect the alarm actions for your environment.
SI.L1-3.14.1	Identify, report, and correct information and information system flaws in a timely manner.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
SI.L1-3.14.1	Identify, report, and correct information and information system flaws in a timely manner.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
SI.L1-3.14.2	Provide protection from malicious code at appropriate locations within organizational information systems.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
SI.L1-3.14.5	Perform periodic scans of the information system and real-time scans of files from external sources as files are downloaded, opened, or executed.	ecr-private-image-scanning-enabled	Amazon Elastic Container Repository (ECR) image scanning assists in identifying software vulnerabilities in your container images. Enabling image scanning on ECR repositories adds a layer of verification for the integrity and safety of the images being stored.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	alb-waf-enabled	Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	api-gw-associated-with-waf	AWS WAF enables you to configure a set of rules (called a web access control list (web ACL)) that allow, block, or count web requests based on customizable web security rules and conditions that you define. Ensure your Amazon API Gateway stage is associated with a WAF Web ACL to protect it from malicious attacks
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	cloudwatch-alarm-action-check	Amazon CloudWatch alarms alert when a metric breaches the threshold for a specified number of evaluation periods. The alarm performs one or more actions based on the value of the metric or expression relative to a threshold over a number of time periods. This rule requires a value for alarmActionRequired (Config Default: True), insufficientDataActionRequired (Config Default: True), okActionRequired (Config Default: False). The actual value should reflect the alarm actions for your environment.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
SI.L2-3.14.3	Monitor system security alerts and advisories and take action in response.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	alb-waf-enabled	Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	api-gw-associated-with-waf	AWS WAF enables you to configure a set of rules (called a web access control list (web ACL)) that allow, block, or count web requests based on customizable web security rules and conditions that you define. Ensure your Amazon API Gateway stage is associated with a WAF Web ACL to protect it from malicious attacks
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
SI.L2-3.14.6	Monitor organizational systems, including inbound and outbound communications traffic, to detect attacks and indicators of potential attacks.	wafv2-logging-enabled	To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	api-gw-execution-logging-enabled	API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	cloudtrail-s3-dataevents-enabled	The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	cloud-trail-cloud-watch-logs-enabled	Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	cloudtrail-enabled	AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	ec2-managedinstance-association-compliance-status-check	Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	elb-logging-enabled	Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	guardduty-enabled-centralized	Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	multi-region-cloudtrail-enabled	AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	rds-logging-enabled	To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	s3-bucket-logging-enabled	Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	securityhub-enabled	AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
SI.L2-3.14.7	Identify unauthorized use of organizational systems.	wafv2-logging-enabled	To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.

Template

The template is available on GitHub: Operational Best Practices for CMMC 2.0 Level 2.

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Operational Best Practices for CMMC 2.0 Level 1

Operational Best Practices for Compute Services