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ZKTeco ZKBioSecurity 3.0 File Path Manipulation Vulnerability

Medium
Advisory ID
ZSL-2016-5365
Release Date
31 August 2016
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
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

File path manipulation vulnerabilities arise when user-controllable data is placed into a file or URL path that is used on the server to access local resources, which may be within or outside the web root. An attacker can modify the file path to access different resources, which may contain sensitive information. Even where an attack is constrained within the web root, it is often possible to retrieve items that are normally protected from direct access, such as application configuration files, the source code for server-executable scripts, or files with extensions that the web server is not configured to serve directly.

Proof of Concept
Disclosure Timeline
18.07.2016Vulnerability discovered.
27.07.2016Vendor contacted.
29.08.2016No response from the vendor.
31.08.2016Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
31.08.2016Initial release
26.09.2016Added reference [1], [2], [3] and [4]
24.03.2026Added reference [5]