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51 lines
1.4 KiB
YAML
51 lines
1.4 KiB
YAML
id: s3-auth-fullcontrol
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info:
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name: Restrict S3 Buckets FULL_CONTROL Access for Authenticated Users
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author: princechaddha
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severity: critical
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description: |
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Checks if Amazon S3 buckets grant FULL_CONTROL access to authenticated users, preventing unauthorized operations
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reference:
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- https://docs.aws.amazon.com/AmazonS3/latest/userguide/manage-versioning-examples.html
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metadata:
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max-request: 2
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tags: cloud,devops,aws,amazon,s3,aws-cloud-config
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flow: |
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code(1)
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for(let bucketName of iterate(template.buckets)){
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set("bucket", bucketName)
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code(2)
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}
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self-contained: true
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code:
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- engine:
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- sh
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- bash
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source: |
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aws s3api list-buckets --query 'Buckets[*].Name'
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extractors:
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- type: json # type of the extractor
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internal: true
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name: buckets
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json:
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- '.[]'
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- engine:
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- sh
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- bash
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source: |
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aws s3api get-bucket-acl --bucket $bucket --query 'Grants[?(Grantee.URI==`http://acs.amazonaws.com/groups/global/AuthenticatedUsers`)]'
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matchers:
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- type: word
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words:
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- '"Permission": "FULL_CONTROL"'
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extractors:
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- type: dsl
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dsl:
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- '"FULL_CONTROL is enabled for Authenticated Users on S3 Bucket " + bucket'
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# digest: 490a0046304402201b8296a6828ae2b35d3454c1f92ef6d96b2a09cb4b22967494d3313f39d114030220579ce49b530440be34e8d11749678af4fbea901d9f0471403cee2bb284368d72:922c64590222798bb761d5b6d8e72950 |