CVE-2023-2639 Rockwell Automation FactoryTalk System Services Vulnerable to Sensitive Information Disclosure

Medium 4.1 Published 13 Jun 2023 Updated 2 Jan 2025

Attackers can access sensitive security policy data via a malicious website exploiting unverified WebSocket connections in FactoryTalk System Services.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-2639?

CVE-2023-2639 is a medium-severity vulnerability in Rockwell Automation FactoryTalk System Services, published on 13 Jun 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The underlying feedback mechanism of

Rockwell Automation's FactoryTalk System Services that transfers the FactoryTalk Policy Manager rules to relevant devices on the network does not verify that the origin of the communication is from a legitimate local client device. This may allow a threat actor to craft a malicious website that, when visited, will send a malicious script that can connect to the local WebSocket endpoint and wait for events as if it was a valid client device. If successfully exploited, this would allow a threat actor to receive information including whether FactoryTalk Policy Manager is installed and potentially the entire security policy.

Weakness: CWE-346

Which versions are affected by CVE-2023-2639?

It affects 2 products.

Products include Rockwellautomation Factorytalk Policy Manager, Rockwellautomation Factorytalk System Services.

How do I fix CVE-2023-2639?

No fix has been published for CVE-2023-2639 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-2639 being exploited?

There is no known exploitation of CVE-2023-2639 in the wild and no public exploit code.

Sources

Also known as GHSA-vhfm-8gx7-f4cp.