Title: ZKTeco ZKBioSecurity 3.0 User Enumeration Weakness
Advisory ID: ZSL-2016-5366
Type: Local/Remote
Impact: Exposure of sensitive information
Risk: (1/5)
Release Date: 31.08.2016

Summary

ZKBioSecurity3.0 is the ultimate "All in One" web based security platform developed by ZKTeco. It contains four integrated modules: access control, video linkage, elevator control and visitor management. With an optimized system architecture designed for high level biometric identification and a modern-user friendly UI, ZKBioSecurity 3.0 provides the most advanced solution for a whole new user experience.

Description

The weakness is caused due to the 'authLoginAction!login.do' script enumerating the list of valid usernames when some characters are provided via the 'username' parameter.

Vendor

ZKTeco Inc. - http://www.zkteco.com

Affected Version

3.0.1.0_R_230
Platform: 3.0.1.0_R_230
Personnel: 1.0.1.0_R_1916
Access: 6.0.1.0_R_1757
Elevator: 2.0.1.0_R_777
Visitor: 2.0.1.0_R_877
Video:2.0.1.0_R_489
Adms: 1.0.1.0_R_197

Tested On

Microsoft Windows 7 Ultimate SP1 (EN)
Microsoft Windows 7 Professional SP1 (EN)
Apache-Coyote/1.1
Apache Tomcat/7.0.56

Vendor Status

[18.07.2016] Vulnerability discovered.
[27.07.2016] Vendor contacted.
[29.08.2016] No response from the vendor.
[31.08.2016] Public security advisory released.

PoC

zkbiosec_userenum.py

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://exchange.xforce.ibmcloud.com/vulnerabilities/116485
[2] https://packetstormsecurity.com/files/138573

Changelog

[31.08.2016] - Initial release
[26.09.2016] - Added reference [1] and [2]

Contact

Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk