Server-Side Encryption on Amazon S3 Buckets

ID: s3-server-side-encryption

Severity: high

Author: princechaddha

Tags: cloud,devops,aws,amazon,s3,aws-cloud-config

Description

This template verifies if Amazon S3 buckets have server-side encryption enabled for protecting sensitive content at rest, using either AWS S3-managed keys (SSE-S3) or AWS KMS-managed keys (SSE-KMS).

YAML Source

id: s3-server-side-encryption
info:
  name: Server-Side Encryption on Amazon S3 Buckets
  author: princechaddha
  severity: high
  description: |
    This template verifies if Amazon S3 buckets have server-side encryption enabled for protecting sensitive content at rest, using either AWS S3-managed keys (SSE-S3) or AWS KMS-managed keys (SSE-KMS).
  reference:
    - https://docs.aws.amazon.com/cli/latest/reference/s3api/get-bucket-encryption.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,s3,aws-cloud-config

flow: |
  code(1)
  for(let bucketName of iterate(template.buckets)){
    set("bucket", bucketName)
    code(2)
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws s3api list-buckets --query 'Buckets[*].Name'

    extractors:
      - type: json # type of the extractor
        internal: true
        name: buckets
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
        aws s3api get-bucket-encryption --bucket $bucket

    matchers:
      - type: word
        words:
          - "ServerSideEncryptionConfigurationNotFoundError"

    extractors:
      - type: dsl
        dsl:
          - '"The S3 bucket " + bucket +" is not encrypted at rest"'
# digest: 4b0a004830460221008d54485138a57d80518489a9e5691f926a8765f6f0dc9f30a52b2c49c9267029022100d1a778b27521d4b0d555051125edbafb190fb416d292d93afee189f7c6d25f1b:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "cloud/aws/s3/s3-server-side-encryption.yaml"

View on Github