CVE-2020-24908

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-19 · updated 2026-06-17

Description

Checkmk before 1.6.0p17 allows local users to obtain SYSTEM privileges via a Trojan horse shell script in the %PROGRAMDATA%\checkmk\agent\local directory.

Affected products

Checkmk GmbH Checkmk: before 1.6.0; 1.6.0, 1.6.0-p1, 1.6.0-p10, 1.6.0-p11, 1.6.0-p12, 1.6.0-p13 (+11) — fixed in 1.6.0

How to fix

Upgrade to a fixed version: Checkmk GmbH Checkmk 1.6.0. Check the vendor advisory for mitigations.

References

https://compass-security.com/fileadmin/Research/Advisories/2020-05_CSNC-2020-005_Checkmk_Local_Privilege_Escalation.txt
https://compass-security.com/fileadmin/Research/Advisories/2020-05_CSNC-2020-005_Checkmk_Local_Privilege_Escalation.txt

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