CVE-2021-34597 Phoenix Contact: PC Worx/-Express prone to improper input validation vulnerability
Attackers can use manipulated project files to unpack arbitrary files outside the intended directory in Phoenix Contact PC Worx.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-34597?
CVE-2021-34597 is a high-severity path traversal vulnerability in Phoenix Contact PC Worx, published on 4 Nov 2021. 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
Improper Input Validation vulnerability in PC Worx Automation Suite of Phoenix Contact up to version 1.88 could allow an attacker with a manipulated project file to unpack arbitrary files outside of the selected project directory.
Weakness: CWE-20
Which versions are affected by CVE-2021-34597?
It affects 2 products.
Products include Phoenixcontact Pc Worx, Phoenixcontact Pc Worx Express.
How do I fix CVE-2021-34597?
No fix has been published for CVE-2021-34597 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-2021-34597 being exploited?
There is no known exploitation of CVE-2021-34597 in the wild and no public exploit code.
Other vulnerabilities in Phoenix Contact PC Worx
Sources
Also known as GHSA-m8p2-4fmh-2gr9.