id: CVE-2021-21087

info:
  name: Adobe ColdFusion - Cross-Site Scripting
  author: Daviey
  severity: medium
  description: |
    Adobe Coldfusion versions 2016 (update 16 and earlier), 2018 (update 10 and earlier) and 2021.0.0.323925 are affected by an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability. An attacker could abuse this vulnerability to execute arbitrary JavaScript code in context of the current user. Exploitation of this issue requires user interaction.
  remediation: |
    Apply the latest security patches or updates provided by Adobe to mitigate this vulnerability.
  reference:
    - https://helpx.adobe.com/security/products/coldfusion/apsb21-16.html
    - https://twitter.com/Daviey/status/1374070630283415558
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21087
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 5.4
    cve-id: CVE-2021-21087
    cwe-id: CWE-79
    epss-score: 0.00293
    epss-percentile: 0.65725
    cpe: cpe:2.3:a:adobe:coldfusion:2016:-:*:*:*:*:*:*
  metadata:
    max-request: 7
    vendor: adobe
    product: coldfusion
    shodan-query: http.component:"Adobe ColdFusion"
  tags: cve,cve2021,xss,adobe,misc,coldfusion

http:
  - method: GET
    path:
      - "{{BaseURL}}/cf_scripts/scripts/ajax/package/cfajax.js"
      - "{{BaseURL}}/cf-scripts/scripts/ajax/package/cfajax.js"
      - "{{BaseURL}}/CFIDE/scripts/ajax/package/cfajax.js"
      - "{{BaseURL}}/cfide/scripts/ajax/package/cfajax.js"
      - "{{BaseURL}}/CF_SFSD/scripts/ajax/package/cfajax.js"
      - "{{BaseURL}}/cfide-scripts/ajax/package/cfajax.js"
      - "{{BaseURL}}/cfmx/CFIDE/scripts/ajax/package/cfajax.js"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - 'eval\(\"\(\"\+json\+\"\)\"\)'

      - type: status
        status:
          - 200

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