CVE-2021-40905

Public Exploit

Description

The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does not properly sanitise the uploading of ".mkp" files, which are Extension Packages, making remote code execution possible. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session of a user with administrator role. NOTE: the vendor states that this is the intended behavior: admins are supposed to be able to execute code in this manner

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.43% Top 20%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://checkmk.com product
https://github.com/Edgarloyola/CVE-2021-40905 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-40905?
CVE-2021-40905 has been scored as a high severity vulnerability.
How to fix CVE-2021-40905?
To fix CVE-2021-40905, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-40905 being actively exploited in the wild?
It is possible that CVE-2021-40905 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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