Arbitrary file upload in Checkmk - CVE-2021-40905
Published: July 21, 2022
Vulnerability identifier: #VU65668
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-40905
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: tribe29 GmbH
Affected software:
Checkmk
Checkmk
Detailed vulnerability description
The vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to insufficient validation of ".mkp" files during file upload. A remote user can upload a malicious file and execute it on the server.
How to mitigate CVE-2021-40905
Install updates from vendor's website.