CVE-2022-42457 — Generex CS141 through 2

Generex CS141 through 2.10 allows remote command execution by administrators via a web interface that reaches run_update in /usr/bin/gxserve-update.sh (e.g., command execution can occur via a reverse shell installed by install.sh).

01What is this vulnerability?

Generex CS141 through 2.10 allows remote command execution by administrators via a web interface that reaches run_update in /usr/bin/gxserve-update.sh (e.g., command execution can occur via a reverse shell installed by install.sh).

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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: 2022-10-06T00:00:00.000Z
• Last modified: 2024-08-03T13:10:40.910Z

09References

• github.com — https://github.com/hubertfarnsworth12/Generex-CS141-Authenticated-Remote-Command…
• www.generex.de — https://www.generex.de/products/ups/
• www.generex.de — https://www.generex.de/support/downloads/ups/cs141
• www.generex.de — https://www.generex.de/support/downloads/ups/cs141/update
• github.dev — https://github.dev/hubertfarnsworth12/Generex-CS141-Authenticated-Remote-Command…