CVE-2023-40252 — Improper Control of Generation of Code ('Code Injection') vulnerability in Genia

Improper Control of Generation of Code ('Code Injection') vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Replace Trusted Executable.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0

01What is this vulnerability?

Improper Control of Generation of Code ('Code Injection') vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Replace Trusted Executable.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian…

02Affected products

Vendor	Product	Versions
Genians	Genian NAC V4.0	V4.0.0
Genians	Genian NAC V5.0	V5.0.0
Genians	Genian NAC Suite V5.0	V5.0.0
Genians	Genian ZTNA	V6.0.0

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: 2023-08-17T06:41:53.096Z
• Last modified: 2024-10-01T18:17:21.582Z

09References

• docs.genians.com — https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html