CVE-2020-12497 Phoenix Contact Automation Worx <= 1.87: stack-based overflow
Attackers can achieve remote code execution by tricking users into opening malicious PLCopen XML files in Phoenix Contact Automation 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-2020-12497?
CVE-2020-12497 is a high-severity memory corruption vulnerability in Phoenix Contact Automation Worx, published on 1 Jul 2020. 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
PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.
Which versions are affected by CVE-2020-12497?
It affects 2 products.
Products include Phoenixcontact Pc Worx, Phoenixcontact Pc Worx Express.
How do I fix CVE-2020-12497?
No fix has been published for CVE-2020-12497 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-12497 being exploited?
There is no known exploitation of CVE-2020-12497 in the wild and no public exploit code.
Other vulnerabilities in Phoenix Contact Automation Worx
Sources
Also known as GHSA-729h-mx93-mqwv.