CVE-2021-29240 Code injection in n/a

High 7.8 Published 4 May 2021 Updated 3 Aug 2024

Attackers can install malicious CODESYS packages due to missing validity checks, leading to arbitrary code execution on the development system.

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-2021-29240?

CVE-2021-29240 is a high-severity code injection vulnerability in n/a, published on 4 May 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

The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before installation and may be used to install CODESYS packages with malicious content.

Which versions are affected by CVE-2021-29240?

It affects 1 product.

Products include Codesys Development System.

How do I fix CVE-2021-29240?

No fix has been published for CVE-2021-29240 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-2021-29240 being exploited?

There is no known exploitation of CVE-2021-29240 in the wild and no public exploit code.

Sources

Also known as GHSA-hp56-5pmq-v75c.