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CVE-2021-47706— COMMAX Biometric Access Control System Authentication Bypass

Quick assessment

Affected
COMMAX Co., Ltd. COMMAX Biometric Access Control System
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

COMMAX Biometric Access Control System是韩国COMMAX公司的一个生物识别门禁系统。 COMMAX Biometric Access Control System 1.0.0版本存在安全漏洞，该漏洞源于cookie投毒问题，可能导致认证绕过和信息泄露。

AI Predicted 7.5 Difficulty: Easy EPSS 0.55% · P45
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I. Basic Information for CVE-2021-47706

Vulnerability Information
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Vulnerability Title
COMMAX Biometric Access Control System Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
COMMAX Biometric Access Control System 1.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to access sensitive information and circumvent physical controls in smart homes and buildings by exploiting cookie poisoning. Attackers can forge cookies to bypass authentication and disclose sensitive information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在信任Cookie未进行验证与完整性检查
Source: CVE Program / CVE List V5
Vulnerability Title
COMMAX Biometric Access Control System 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
COMMAX Biometric Access Control System是韩国COMMAX公司的一个生物识别门禁系统。 COMMAX Biometric Access Control System 1.0.0版本存在安全漏洞，该漏洞源于cookie投毒问题，可能导致认证绕过和信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
COMMAX Co., Ltd. COMMAX Biometric Access Control System 1.0.0 -

II. Public POCs for CVE-2021-47706

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III. Intelligence Information for CVE-2021-47706

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Exploits & Public PoCs for CVE-2021-47706 (1)

Other References for CVE-2021-47706 (4)

Same Patch Batch · COMMAX Co., Ltd. · 2025-12-09 · 7 CVEs total

CVE-2021-47709 COMMAX Smart Home Ruvie CCTV Bridge DVR Service Config Write / DoS
CVE-2021-47708 COMMAX Smart Home IoT Control System SQL Injection Authentication Bypass
CVE-2021-47710 COMMAX Smart Home Ruvie CCTV Bridge DVR Service RTSP Credentials Disclosure
CVE-2021-47705 CNC_Ctrl DllUnregisterServer Access Violation
CVE-2021-47707 COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure
CVE-2021-47719 CNC_Ctrl DllUnregisterServer f5501 Access Violation

IV. Related Vulnerabilities

Same product: COMMAX Biometric Access Control System
Same vendor: COMMAX Co., Ltd.
Same weakness: CWE-565

V. Comments for CVE-2021-47706

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