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CVE-2021-40906

Published: 25 March 2022

CheckMK Raw Edition software (versions 1.5.0 to 1.6.0) does not sanitise the input of a web service parameter that is in an unauthenticated zone. This Reflected XSS allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts) or to steal the session cookies of a user who has previously authenticated via a man in the middle. Successful exploitation requires access to the web service resource without authentication.

Notes

AuthorNote
0xnishit
fix 1.6.0p26: https://github.com/tribe29/checkmk/commit/6b89403e47b541f96ac2b2c5953360a039a1fc71
Priority

Medium

CVSS 3 base score: 6.1

Status

Package Release Status
check-mk
Launchpad, Ubuntu, Debian
bionic
Released (1.2.8p16-1ubuntu0.2)
focal Does not exist

jammy Does not exist

trusty Ignored
(out of standard support)
upstream
Released (1.6.0p26)
xenial Ignored
(out of standard support)