ZKTeco ZKTime 3.0.1.1 (160216)/3.0.1.5 (160622)/3.0.1.6 File file information disclosure

Summaryinfo

A vulnerability identified as problematic has been detected in ZKTeco ZKTime 3.0.1.1 (160216)/3.0.1.5 (160622)/3.0.1.6. This impacts an unknown function of the component File Handler. Performing a manipulation results in file information disclosure. This vulnerability is cataloged as CVE-2016-20024. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in ZKTeco ZKTime 3.0.1.1 (160216)/3.0.1.5 (160622)/3.0.1.6. This affects some unknown functionality of the component File Handler. The manipulation with an unknown input leads to a file information disclosure vulnerability. CWE is classifying the issue as CWE-538. The product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared by Gjoko Krstic as ZSL-2016-5360. The advisory is shared at zeroscience.mk. This vulnerability is uniquely identified as CVE-2016-20024 since 03/15/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/15/2026). MITRE ATT&CK project uses the attack technique T1083 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2016-10803). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• ZKTeco

Name

• ZKTime

Version

• 3.0.1.1 (160216)
• 3.0.1.5 (160622)
• 3.0.1.6

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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