CVE-2022-41666 Security feature bypass in EcoStruxure Operator Terminal Expert

High 7.0 Published Updated

Local attackers can bypass signature verification to load malicious DLLs and execute arbitrary code in Schneider Electric HMI applications.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-41666?

CVE-2022-41666 is a high-severity vulnerability in Schneider Electric EcoStruxure Operator Terminal Expert, published on 4 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists that allows adversaries with local user privileges to load a malicious DLL which could lead to execution of malicious code. Affected Products: EcoStruxure Operator Terminal Expert(V3.3 Hotfix 1 or prior), Pro-face BLUE(V3.3 Hotfix1 or prior).

Weakness: CWE-347

Which versions are affected by CVE-2022-41666?

It affects 2 products.

Products include Schneider-Electric Ecostruxure Operator Terminal Expert, Schneider-Electric Pro-Face Blue.

How do I fix CVE-2022-41666?

No fix has been published for CVE-2022-41666 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-41666 being exploited?

There is no known exploitation of CVE-2022-41666 in the wild and no public exploit code.

Sources

Also known as GHSA-9fmw-xp57-phr3.

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