CloudTrail Logs Not Encrypted

ID: cloudtrail-logs-not-encrypted

Severity: medium

Author: princechaddha

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

Description

Ensure Amazon CloudTrail logs are encrypted at rest using AWS Key Management Service (KMS) to secure log data.

YAML Source

id: cloudtrail-logs-not-encrypted
info:
  name: CloudTrail Logs Not Encrypted
  author: princechaddha
  severity: medium
  description: |
    Ensure Amazon CloudTrail logs are encrypted at rest using AWS Key Management Service (KMS) to secure log data.
  impact: |
    Non-encrypted CloudTrail logs pose a risk of unauthorized access, compromising the integrity and confidentiality of log data.
  remediation: |
    Enable Server-Side Encryption (SSE) for CloudTrail logs using an AWS KMS key through the CloudTrail console or AWS CLI.
  reference:
    - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/encrypting-cloudtrail-log-files-with-aws-kms.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,cloudtrail,aws-cloud-config
variables:
  region: "us-east-1"

flow: |
  code(1)
  for(let CloudTrail of iterate(template.cloudtrailname)){
    set("trail", CloudTrail)
    set("region", template.trailregion)
    code(2)
  }

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

    extractors:
      - type: json
        name: cloudtrailname
        internal: true
        json:
          - '.[] | .[0]'

      - type: json
        name: trailregion
        internal: true
        json:
          - '.[] | .[1]'

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

    matchers:
      - type: word
        words:
          - "[]"

    extractors:
      - type: dsl
        dsl:
          - '"CloudTrail trail " + trail + " is not configured to encrypt log files using SSE-KMS encryption"'
# digest: 4a0a0047304502205431dba97a21f5853b99739cb31114a978e5cce863034217b4dd523e67d4cb9d022100b809d1b226bffa89d8a592b2f08cd1063512e36b200cb911f11899a60a81d56d: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-logs-not-encrypted.yaml"

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