CVE-2022-31801 — An unauthenticated, remote attacker could upload malicious logic to the devices

An unauthenticated, remote attacker could upload malicious logic to the devices based on ProConOS/ProConOS eCLR in order to gain full control over the device.

01What is this vulnerability?

An unauthenticated, remote attacker could upload malicious logic to the devices based on ProConOS/ProConOS eCLR in order to gain full control over the device.

02Affected products

Vendor	Product	Versions
PHOENIX CONTACT	MULTIPROG	All Versions
PHOENIX CONTACT	ProConOS	All Versions
PHOENIX CONTACT	ProConOS eCLR	All Versions

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: 2022-06-21T08:00:31.688Z
• Last modified: 2024-09-16T18:50:12.497Z

09References

• cert.vde.com — https://cert.vde.com/en/advisories/VDE-2022-026/