CVE-2016-20031 | BDVDB-2026-320581 Detail
ZKTecoZKTeco ZKBioSecurity
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: local.
Weaknesses#
- CWE-798 Use of Hard-coded Credentials
References#
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5367.php
- 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-bypass-via-vislogin-jsp
Exploit#
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.