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Able to overwrite objects even after denying s3:PutOverwriteObject in S3 group policy

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storagegrid
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sgrid
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Applies to

  • StorageGRID 11.7
  • S3 group policy

Issue

After creating S3 group policy with deny effect on s3:PutOverwriteObject, the PUT operations is able to overwrite the objects in the bucket.
 
S3 Group policy:
 
{
    "Statement": [
        {
            "Sid": "Deny PUT overwrites",
            "Effect": "Deny",
            "Action": "s3:PutOverwriteObject",
            "Resource": [
          "arn:aws:s3:::*"
            ]
        }
    ]
}

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