CVE-2019-5161 Code injection in WAGO PFC200 Firmware

Critical 9.1 Published 10 Mar 2020 Updated 4 Aug 2024

Attackers can execute arbitrary shell scripts with root privileges by sending a crafted XML file to the Cloud Connectivity service.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-5161?

CVE-2019-5161 is a critical code injection vulnerability in WAGO PFC200 Firmware, published on 10 Mar 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An exploitable remote code execution vulnerability exists in the Cloud Connectivity functionality of WAGO PFC200 versions 03.02.02(14), 03.01.07(13), and 03.00.39(12). A specially crafted XML file will direct the Cloud Connectivity service to download and execute a shell script with root privileges.

Weakness: CWE-345

Which versions are affected by CVE-2019-5161?

It affects 1 product.

Products include Wago Pfc200 Firmware.

How do I fix CVE-2019-5161?

No fix has been published for CVE-2019-5161 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-2019-5161 being exploited?

There is no known exploitation of CVE-2019-5161 in the wild and no public exploit code.

Sources

Also known as GHSA-9x65-cc3m-jr94.