CVE-2023-3940 — Relative Path Traversal vulnerability in ZkTeco-based OEM devices allows an atta

Relative Path Traversal vulnerability in ZkTeco-based OEM devices allows an attacker to access any file on the system.

01What is this vulnerability?

Relative Path Traversal vulnerability in ZkTeco-based OEM devices allows an attacker to access any file on the system.

02Affected products

Vendor	Product	Versions
ZkTeco	ZkTeco	based OEM devices with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0 — ZAM170-NF-1.8.25-7354-Ver1.0.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-05-21T10:15:52.699Z
• Last modified: 2024-08-02T07:08:50.683Z

09References

• github.com — https://github.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-003.md