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s3-bucket-all-users-acl.md

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CloudSploit

AWS / S3 / S3 Bucket All Users ACL

Quick Info

Plugin Title S3 Bucket All Users ACL
Cloud AWS
Category S3
Description Ensures S3 buckets do not allow global write, delete, or read ACL permissions
More Info S3 buckets can be configured to allow anyone, regardless of whether they are an AWS user or not, to write objects to a bucket or delete objects. This option should not be configured unless there is a strong business requirement.
AWS Link http://docs.aws.amazon.com/AmazonS3/latest/UG/EditingBucketPermissions.html
Recommended Action Disable global all users policies on all S3 buckets and ensure both the bucket ACL is configured with least privileges.

Detailed Remediation Steps