CloudTrail MFA Delete

ID: cloudtrail-mfa-delete

Severity: high

Author: princechaddha

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

Description

Ensure Amazon CloudTrail buckets have MFA Delete enabled to protect log file deletion.

YAML Source

id: cloudtrail-mfa-delete
info:
  name: CloudTrail MFA Delete
  author: princechaddha
  severity: high
  description: |
    Ensure Amazon CloudTrail buckets have MFA Delete enabled to protect log file deletion.
  impact: |
    Prevents unauthorized deletion of CloudTrail logs, enhancing security and compliance.
  remediation: |
    Enable MFA Delete on CloudTrail buckets via the S3 console or AWS CLI.
  reference:
    - https://docs.aws.amazon.com/AmazonS3/latest/userguide/MultiFactorAuthenticationDelete.html
  metadata:
    max-request: 3
  tags: cloud,devops,aws,amazon,s3,aws-cloud-config
variables:
  region: "ap-south-1"

flow: |
  code(1)
  for(let CloudTrail of iterate(template.cloudtrailname)){
    set("trail", CloudTrail)
    code(2)
    for(let BucketNames of iterate(template.buckets)){
      set("bucket", BucketNames)
      code(3)
    }
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws cloudtrail list-trails --region $region --query 'Trails[*].Name' --output json

    extractors:
      - type: json
        name: cloudtrailname
        internal: true
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
      aws cloudtrail describe-trails --region $region --trail-name-list $trail --query 'trailList[*].S3BucketName'

    extractors:
      - type: json
        name: buckets
        internal: true
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
      aws s3api get-bucket-versioning --bucket $bucket --query 'MFADelete'

    matchers:
      - type: word
        words:
          - 'null'

    extractors:
      - type: dsl
        dsl:
          - '"The MFA Delete feature is not enabled for the S3 bucket " + bucket + " associated with the CloudTrail " + trail'
# digest: 4a0a00473045022074bcc46953d45bd74975aabebd753202688f9d3774e1d44137f0eede82c5d7ea022100b701b86493ae07d3699f7a259c8e77374645f752be2923b83f33fbed7848ecee: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/cloudtrail/cloudtrail-mfa-delete.yaml"

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