s3-bucket-blacklisted-actions-prohibited - AWS Config
AWS CloudFormation template
Services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the AWS European Sovereign Cloud Region, see the AWS European Sovereign Cloud User Guide.

s3-bucket-blacklisted-actions-prohibited

Checks if an Amazon Simple Storage Service (Amazon S3) bucket policy does not allow blocklisted bucket-level and object-level actions on resources in the bucket for principals from other AWS accounts. For example, the rule checks that the Amazon S3 bucket policy does not allow another AWS account to perform any s3:GetBucket* actions and s3:DeleteObject on any object in the bucket. The rule is NON_COMPLIANT if any blocklisted actions are allowed by the Amazon S3 bucket policy.

Note

The rule will only check for entities in the Principal property and does not take into account any conditionals under the Condition property in a policy

Note

If a single value in an S3 bucket policy (for example, one Resource or Condition value) contains more than five IAM policy variables, the rule can't evaluate that policy and returns NON_COMPLIANT, even if the policy would otherwise be compliant. To get an accurate evaluation, split any value that contains more than five policy variables so that each value contains five or fewer.

Identifier: S3_BUCKET_BLACKLISTED_ACTIONS_PROHIBITED

Resource Types: AWS::S3::Bucket

Trigger type: Configuration changes

AWS Region: All supported AWS regions

Parameters:

blacklistedActionPattern
Type: CSV

Comma-separated list of blacklisted action patterns, for example, s3:GetBucket* and s3:DeleteObject.

AWS CloudFormation template

To create AWS Config managed rules with AWS CloudFormation templates, see Creating AWS Config Managed Rules With AWS CloudFormation Templates.