CVE-2022-2788 Path traversal in Proficy Machine Edition
Attackers can execute arbitrary code on Windows via a malicious .BLZ file uploaded to the PLC using a path traversal vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-2788?
CVE-2022-2788 is a low-severity path traversal vulnerability in Emerson Electric Proficy Machine Edition, published on 19 Aug 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Emerson Electric's Proficy Machine Edition Version 9.80 and prior is vulnerable to CWE-29 Path Traversal: '\..\Filename', also known as a ZipSlip attack, through an upload procedure which enables attackers to implant a malicious .BLZ file on the PLC. The file can transfer through the engineering station onto Windows in a way that executes the malicious code.
Which versions are affected by CVE-2022-2788?
It affects 1 product.
Products include Emerson Electric\'s Proficy.
How do I fix CVE-2022-2788?
No fix has been published for CVE-2022-2788 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2022-2788 being exploited?
There is no known exploitation of CVE-2022-2788 in the wild and no public exploit code.
Other vulnerabilities in Emerson Electric Proficy Machine Edition
Sources
Also known as GHSA-xwxm-hg2j-hpjq.