CVE-2020-6081 Code injection in 3S
Remote attackers can execute arbitrary code on CODESYS Runtime PLCs by sending specially crafted network requests, posing a critical risk to industrial control systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-6081?
CVE-2020-6081 is a critical code injection vulnerability in 3S, published on 7 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An exploitable code execution vulnerability exists in the PLC_Task functionality of 3S-Smart Software Solutions GmbH CODESYS Runtime 3.5.14.30. A specially crafted network request can cause remote code execution. An attacker can send a malicious packet to trigger this vulnerability.
Weakness: CWE-345
Which versions are affected by CVE-2020-6081?
It affects 1 product.
Products include Codesys Runtime.
How do I fix CVE-2020-6081?
No fix has been published for CVE-2020-6081 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-6081 being exploited?
There is no known exploitation of CVE-2020-6081 in the wild and no public exploit code.
Sources
Also known as GHSA-7grw-2xfw-qjvm.