Vulnerability identifier: #VU66576

Vulnerability risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-2791

CWE-ID: CWE-434

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Proficy Machine Edition
Server applications / Other server solutions

Vendor: Emerson

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to the affected application will upload any file written into the PLC logic folder to the connected PLC. A local user can upload a malicious file and execute it on the server.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Proficy Machine Edition: 9.00

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External links
http://ics-cert.us-cert.gov/advisories/icsa-22-228-06

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.