AmazonS3FullAccess

Last Modified

Mar 12, 2026

March 12, 2026 at 09:28 PM UTC

Version

Total Versions

Created

Sep 27, 2021

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Risk

Medium

The same capabilities in a scoped form, resource policy writes, reads across all data, or full access to a whole service. Read from this policy document alone: trust policies, boundaries and SCPs in your account still decide what actually succeeds. How this is assessed

Medium
Can rewrite resource policies and sharing
Grants 25 permissions management actions across 2 services (s3-object-lambda, s3) on any resource, enough to share resources outside the account.
s3-object-lambda:putobjectacls3-object-lambda:putobjectversionacls3:associateaccessgrantsidentitycenters3:createaccessgrants3:createaccessgrantsinstances3:createaccessgrantslocations3:deleteaccessgrants3:deleteaccessgrantsinstances3:deleteaccessgrantsinstanceresourcepolicys3:deleteaccessgrantslocations3:deleteaccesspointpolicys3:deleteaccesspointpolicyforobjectlambdaand 13 more
Use with caution: Turn on IAM Access Analyzer external access findings, and keep account-level guards like S3 Block Public Access enabled.
Medium
Can read data in every bucket or table
Reads any object in any S3 bucket. Read-only is not the same as harmless when the data is the asset.
s3:GetObject (via s3:*)
Use with caution: Read access to data is still access to data. For people who only need to see configuration, ViewOnlyAccess carries none of these signals.
Medium
Full access to 2 services on every resource
Uses s3:*, s3-object-lambda:* with Resource "*" and no condition, so every action AWS adds to those services later is granted too.
s3:*s3-object-lambda:*
Use with caution: The grant grows every time the service does. For long-lived access, prefer a policy that lists the actions you actually need.

Policy Document

View on GitHub

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20{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": [
            "s3:*",
            "s3-object-lambda:*"
          ],
          "Resource": "*"
        }
      ]
    },
    "VersionId": "v2",
    "IsDefaultVersion": true,
    "CreateDate": "2021-09-27T20:16:37+00:00"
  }
}