CVE-2021-40906
Medium
Description
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.
SeverityMedium
CVSS6.1
Exploit probability63. percentile1%
ProductCheckmk
PublishedMar 25, 2022
First seenMar 25, 2022
How to fix
Update
- checkmk checkmk1.6.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| checkmk checkmk | 1.5.0 ≤ v < 1.6.0, 1.6.0 | 1.6.0 |
| tribe29 checkmk | 1.6.0b10, 1.6.0b11, 1.6.0p10, 1.6.0p17, 1.6.0p18 | — |
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