#VU66577 Improper Verification of Cryptographic Signature in Proficy Machine Edition - CVE-2022-2790

Vulnerability identifier: #VU66577

Vulnerability risk: Low

CVSSv4.0: 3.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-2790

CWE-ID: CWE-347

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 the target system.

The vulnerability exists due to the affected application does not properly verify compiled logic (PDT files) and data blocks data (BLD/BLK files). A local user can bypass authentication on the target system.

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
https://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.