CVE-2024-39844 Code injection in n/a
Remote attackers can execute arbitrary code in ZNC via the modtcl module when handling KICK commands, requiring the module to be enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-39844?
CVE-2024-39844 is a critical code injection vulnerability in n/a, published on 3 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In ZNC before 1.9.1, remote code execution can occur in modtcl via a KICK.
Weakness: CWE-94
Which versions are affected by CVE-2024-39844?
Linux distribution packages (3)
znc SUSE:Package Hub 15 SP6 | All versions | 1.9.1-bp156.2.3.1 |
znc openSUSE:Leap 15.6 | All versions | 1.9.1-bp156.2.3.1 |
znc openSUSE:Tumbleweed | All versions | 1.9.1-1.1 |
How do I fix CVE-2024-39844?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2024-39844 being exploited?
There is no known exploitation of CVE-2024-39844 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as DEBIAN-CVE-2024-39844, DSA-5725-1, GHSA-qh94-pjxq-88v7, MGASA-2024-0257, UBUNTU-CVE-2024-39844, USN-6990-1 and 2 more.