CVE-2016-20031

Published: Mar 16, 2026 Last Modified: Mar 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,8
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 5,5
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 2 Days)

798

Use of Hard-coded Credentials

Draft
Common Consequences
Security Scopes Affected:
Access Control Integrity Confidentiality Availability Other
Potential Impacts:
Bypass Protection Mechanism Read Application Data Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands Other
Applicable Platforms
Technologies: Mobile, ICS/OT
View CWE Details
https://cxsecurity.com/issue/WLB-2016090003
https://exchange.xforce.ibmcloud.com/vulnerabilities/116488
https://packetstormsecurity.com/files/138571
https://www.exploit-db.com/exploits/40327/
https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-local-authorization-b…
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5367.php