s3-bucket-policy-grantee-check - AWS Config
AWS CloudFormation template

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), 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, for example 'arn:aws:iam::111122223333:user/Alice, arn:aws:iam::444455556666:role/Bob, 123456789012'.

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.