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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2016-20031 Detail

Description

ZKTeco ZKBioSecurity 3.0 contains a local authorization bypass vulnerability in visLogin.jsp that allows attackers to authenticate without valid credentials by spoofing localhost requests. Attackers can exploit the EnvironmentUtil.getClientIp() method which treats IPv6 loopback address 0:0:0:0:0:0:0:1 as 127.0.0.1 and authenticates using the IP as username with hardcoded password 123456 to access sensitive information and perform unauthorized actions.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 6.8 MEDIUM
Vector:  CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://cxsecurity.com/issue/WLB-2016090003 VulnCheck
https://exchange.xforce.ibmcloud.com/vulnerabilities/116488 VulnCheck
https://packetstormsecurity.com/files/138571 VulnCheck
https://www.exploit-db.com/exploits/40327/ VulnCheck
https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-local-authorization-bypass-via-vislogin-jsp VulnCheck
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5367.php VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-798 Use of Hard-coded Credentials VulnCheck  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-20031
NVD Published Date:
03/16/2026
NVD Last Modified:
03/16/2026
Source:
VulnCheck