ZKTeco ZKBioSecurity 3.0 contains a file path manipulation vulnerability that allows attackers to access arbitrary files by modifying file paths used to retrieve local resources. Attackers can manipulate path parameters to bypass access controls and retrieve sensitive information including configuration files, source code, and protected application resources.
Weakness
During installation, installed file permissions are set to allow anyone to modify those files.
Potential Mitigations
- Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/1.html
- https://cwe.mitre.org/data/definitions/127.html
- https://cwe.mitre.org/data/definitions/81.html
References
- https://cxsecurity.com/issue/WLB-2016090001
- https://exchange.xforce.ibmcloud.com/vulnerabilities/116489
- https://packetstormsecurity.com/files/138570
- https://www.exploit-db.com/exploits/40326/
- https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-file-path-manipulation-vulnerability
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5365.php