CVE-2016-20024 - CVE House
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Status published Critical CVE-2016-20024

ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation

Vulnerability Description

ZKTeco ZKTime.Net 3.0.1.6 contains an insecure file permissions vulnerability that allows unprivileged users to escalate privileges by modifying executable files. Attackers can exploit world-writable permissions on the ZKTimeNet3.0 directory and its contents to replace executable files with malicious binaries for privilege escalation.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • LiquidWorm as Gjoko Krstic of Zero Science Lab

References

More from ZKTeco Inc.

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CVE-2016-20032
ZKTeco ZKAccess Security System 5.3.1 Stored XSS
Medium 5.1
CVE-2016-20031
ZKTeco ZKBioSecurity 3.0 Local Authorization Bypass via visLogin.jsp
Medium 6.8
CVE-2016-20030
ZKTeco ZKBioSecurity 3.0 User Enumeration via authLoginAction
Critical 9.3
CVE-2016-20029
ZKTeco ZKBioSecurity 3.0 File Path Manipulation Vulnerability
Medium 6.9
CVE-2016-20028
ZKTeco ZKBioSecurity 3.0 Cross-Site Request Forgery Superadmin
Medium 5.3

Affected Vendor

ZKTeco Inc.

View all reports →

Affected Software

ZKTeco ZKTime.Net
Vulnerable Versions:
3.0.1.6, 3.0.1.5 (160622), 3.0.1.1 (160216)

Timeline

Official Publish: March 15th, 2026
Last Modified: June 8th, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-538

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.