s3-bucket-policy-grantee-check
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 VPCs that you provide. The rule is COMPLIANT if a bucket policy is not present.
For example, if the input parameter to the rule is the list of two principals: 111122223333 and 444455556666 and the bucket policy specifies that only 111122223333 can access the bucket, then the rule is COMPLIANT.
With the same input parameters: If the bucket policy specifies that 111122223333 and 444455556666 can access the bucket, it is also COMPLIANT.
However, if the bucket policy specifies that 999900009999 can access the bucket, the rule is NON_COMPLIANT.
Note
If a bucket policy contains more than one statement, each statement in the bucket policy is evaluated against this rule.
Identifier: S3_BUCKET_POLICY_GRANTEE_CHECK
Resource Types: AWS::S3::Bucket
Trigger type: Configuration changes
AWS Region: All supported AWS regions except Asia Pacific (Hyderabad), Asia Pacific (Malaysia), Canada West (Calgary), Europe (Spain) Region
Parameters:
- awsPrincipals (Optional)
- Type: CSV
-
Comma-separated list of principals such as IAM User ARNs, IAM Role ARNs, and AWS accounts. You must provide the full ARN or use partial matching. For example, "arn:aws:iam::
AccountID:role/role_name" or "arn:aws:iam::AccountID:role/*". If the provided value is not an exact match with the principal ARN specified in the bucket policy, the rule is NON_COMPLIANT. - servicePrincipals (Optional)
- Type: CSV
-
Comma-separated list of service principals, for example 'cloudtrail.amazonaws.com, lambda.amazonaws.com'.
- federatedUsers (Optional)
- Type: CSV
-
Comma-separated list of identity providers for web identity federation such as Amazon Cognito and SAML identity providers. For example 'cognito-identity.amazonaws.com, arn:aws:iam::111122223333:saml-provider/my-provider'.
- ipAddresses (Optional)
- Type: CSV
-
Comma-separated list of CIDR formatted IP addresses, for example '10.0.0.1, 192.168.1.0/24, 2001:db8::/32'.
- vpcIds (Optional)
- Type: CSV
-
Comma-separated list of Amazon Virtual Private Clouds (Amazon VPC) IDs, for example 'vpc-1234abc0, vpc-ab1234c0'.
AWS CloudFormation template
To create AWS Config managed rules with AWS CloudFormation templates, see Creating AWS Config Managed Rules With AWS CloudFormation Templates.
