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Adobe ColdFusion - Cross-Site Scripting

ID: CVE-2021-21087

Severity: medium

Author: Daviey

Tags: cve2021,cve,xss,adobe,misc,coldfusion

Description

Section titled “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.

YAML Source

Section titled “YAML Source”
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.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  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
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  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: 0.00179
    epss-percentile: 0.54989
    cpe: cpe:2.3:a:adobe:coldfusion:2016:-:*:*:*:*:*:*
  metadata:
    max-request: 7
    vendor: adobe
    product: coldfusion
    shodan-query:
      - http.component:"Adobe ColdFusion"
      - http.component:"adobe coldfusion"
      - http.title:"coldfusion administrator login"
      - cpe:"cpe:2.3:a:adobe:coldfusion"
    fofa-query:
      - title="coldfusion administrator login"
      - app="adobe-coldfusion"
    google-query: intitle:"coldfusion administrator login"
  tags: cve2021,cve,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
# digest: 4a0a0047304502201325b77ea5f95c5afe4f38439cfc6ac16b26544cd6f4553420d5303c64730f3f022100c2ee784d45c0ef8cac2cca5d1ea84b96d14e6ae906f407af2cb67cc189636cf9:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-21087.yaml"

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