CVE-2019-18937 Command injection in n/a

Critical 9.8 Published 14 Nov 2019 Updated 5 Aug 2024

Unauthenticated attackers can execute arbitrary TCL commands via the web interface if the Script Parser AddOn is installed.

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

What is CVE-2019-18937?

CVE-2019-18937 is a critical command injection vulnerability in n/a, published on 14 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8 installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi script, which executes TCL script content from an HTTP POST request.

Weakness: CWE-306

Which versions are affected by CVE-2019-18937?

It affects 3 products.

Products include Eq-3 Homematic Ccu2 Firmware, Eq-3 Homematic Ccu3 Firmware, Scriptparser Project Scriptparser.

How do I fix CVE-2019-18937?

No fix has been published for CVE-2019-18937 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2019-18937 being exploited?

There is no known exploitation of CVE-2019-18937 in the wild and no public exploit code.

Sources

Also known as GHSA-jmxc-hfcj-9hqq.