CVE-2016-20025 - Vulnerability Analysis

Overview

ZKTeco ZKAccess Professional 3.5.3 contains a broken access control vulnerability caused by insecure file permissions allowing authenticated users to modify executable files, letting attackers escalate privileges by replacing binaries.

Severity & Score

Impact

Authenticated attackers can escalate privileges by replacing executable files with malicious code, potentially gaining full system control.

Mitigation

Update to the latest version with corrected file permissions or apply security patches to restrict Modify permissions.

References

• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5361.php
• https://cxsecurity.com/issue/WLB-2016080265
• https://exchange.xforce.ibmcloud.com/vulnerabilities/116486
• https://packetstormsecurity.com/files/138566
• https://www.exploit-db.com/exploits/40323/
• https://www.vulncheck.com/advisories/zkteco-zkaccess-professional-privilege-escalation-via-insecure-permissions

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner