CVE-2024-28826 Unrestricted upload and download paths in check_sftp
Attackers with configuration permissions can read and write arbitrary local files on the Checkmk server via unrestricted SFTP paths.
- 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-2024-28826?
CVE-2024-28826 is a high-severity path traversal vulnerability in Checkmk Checkmk, published on 29 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper restriction of local upload and download paths in check_sftp in Checkmk before 2.3.0p4, 2.2.0p27, 2.1.0p44, and in Checkmk 2.0.0 (EOL) allows attackers with sufficient permissions to configure the check to read and write local files on the Checkmk site server.
Which versions are affected by CVE-2024-28826?
It affects 1 product.
Products include Checkmk Checkmk.
How do I fix CVE-2024-28826?
No fix has been published for CVE-2024-28826 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2024-28826 being exploited?
There is no known exploitation of CVE-2024-28826 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 UBUNTU-CVE-2024-28826.