CloudFront Integrated With WAF

ID: cloudfront-integrated-waf

Severity: medium

Author: DhiyaneshDK

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

Description

Ensure that all your Amazon CloudFront distributions are integrated with the Amazon Web Application Firewall (WAF) service to protect against application-layer attacks that can compromise the security of your websites/web applications or place unnecessary load on them

YAML Source

id: cloudfront-integrated-waf

info:
  name: CloudFront Integrated With WAF
  author: DhiyaneshDK
  severity: medium
  description: |
    Ensure that all your Amazon CloudFront distributions are integrated with the Amazon Web Application Firewall (WAF) service to protect against application-layer attacks that can compromise the security of your websites/web applications or place unnecessary load on them
  impact: |
    Lack of integration between CloudFront and a Web Application Firewall (WAF) increases vulnerability to web-based attacks, including DDoS, SQL injection, and cross-site scripting (XSS).
  remediation: |
    Integrate CloudFront with an appropriate Web Application Firewall (WAF) to filter and monitor HTTP requests, providing enhanced protection against common web threats.
  reference:
    - https://www.trendmicro.com/cloudoneconformity-staging/knowledge-base/aws/CloudFront/cloudfront-integrated-with-waf.html
    - http://docs.aws.amazon.com/waf/latest/developerguide/what-is-aws-waf.html
  tags: cloud,devops,aws,amazon,cloudfront,aws-cloud-config

variables:
  region: "us-west-2"

flow: |
  code(1)
  for(let DistributionListItemsId of iterate(template.distributions)){
    set("distribution", DistributionListItemsId)
    code(2)
  }

self-contained: true

code:
  - engine:
      - sh
      - bash

    source: |
      aws cloudfront list-distributions --output table --query 'DistributionList.Items[*].Id' --region $region --output json

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

  - engine:
      - sh
      - bash

    source: |
        aws cloudfront get-distribution --id $distribution --query 'Distribution.DistributionConfig.WebACLId' --region $region --output json

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '""'

      - type: word
        words:
          - 'arn:'
        negative: true

    extractors:
      - type: dsl
        dsl:
          - '"CloudFront Integrated With WAF " + distribution + " is Disabled"'
# digest: 4a0a0047304502202d620642cc74990fe24716a6835537c17f0665b4f33110c47f495fa92f709ea1022100d5da002654b1eb9447b384320856fdac406517a81f3fea768bb8c0caacddd897:922c64590222798bb761d5b6d8e72950

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/cloudfront/cloudfront-integrated-waf.yaml"

View on Github