CVE-2024-36103 — OS command injection vulnerability in WRC-X5400GS-B v1

OS command injection vulnerability in WRC-X5400GS-B v1.0.10 and earlier, and WRC-X5400GSA-B v1.0.10 and earlier allows a network-adjacent attacker with an administrative privilege to execute arbitrary OS commands by sending a specially crafted request to the product.

01What is this vulnerability?

OS command injection vulnerability in WRC-X5400GS-B v1.0.10 and earlier, and WRC-X5400GSA-B v1.0.10 and earlier allows a network-adjacent attacker with an administrative privilege to execute arbitrary OS commands by sending a specially crafted request to the product.

02Affected products

Vendor	Product	Versions
ELECOM CO.,LTD.	WRC	X5400GS-B — v1.0.10 and earlier
ELECOM CO.,LTD.	WRC	X5400GSA-B — v1.0.10 and earlier

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: 2024-06-12T00:34:39.129Z
• Last modified: 2024-08-02T03:30:13.076Z

09References

• www.elecom.co.jp — https://www.elecom.co.jp/news/security/20240528-01/
• jvn.jp — https://jvn.jp/en/vu/JVNVU97214223/