CVE-2023-31209 Command injection via active checks and REST API
Authenticated attackers can execute arbitrary commands via active checks and REST API in Checkmk monitoring software.
- 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-2023-31209?
CVE-2023-31209 is a high-severity command injection vulnerability in Checkmk Checkmk, published on 10 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper neutralization of active check command arguments in Checkmk < 2.1.0p32, < 2.0.0p38, < 2.2.0p4 leads to arbitrary command execution for authenticated users.
Which versions are affected by CVE-2023-31209?
It affects 2 products.
Products include Checkmk Checkmk, Tribe29 Checkmk.
How do I fix CVE-2023-31209?
No fix has been published for CVE-2023-31209 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-2023-31209 being exploited?
There is no known exploitation of CVE-2023-31209 in the wild and no public exploit code.
Other vulnerabilities in Checkmk Checkmk
- CVE-2025-39666 omd: Local privilege escalation when executing omd commands as root
- CVE-2024-8606 Fix 2FA bypass via RestAPI
- CVE-2022-46836 PHP code injection in watolib
- CVE-2025-32919 Privilege Escalation in Windows License plugin for Checkmk Windows Agent
- CVE-2024-28827 Privilege escalation in Windows agent
Sources
Also known as GHSA-58wf-9868-q73r, UBUNTU-CVE-2023-31209.