CVE-2021-40906: XSS
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-40906?
CVE-2021-40906 refers to a vulnerability in CheckMK Raw Edition software versions 1.5.0 to 1.6.0 that allows for a reflected cross-site scripting (XSS) attack.
What is the severity of CVE-2021-40906?
The severity of CVE-2021-40906 is medium with a CVSS score of 6.1.
How does CVE-2021-40906 affect Tribe29 Checkmk?
CVE-2021-40906 affects Tribe29 Checkmk Raw Edition software versions 1.5.0 to 1.6.0.
How can an attacker exploit CVE-2021-40906?
An attacker can exploit CVE-2021-40906 by injecting malicious HTML content into a web service parameter in an unauthenticated zone, which can be executed by a user's browser and potentially open a backdoor on the device.
Where can I find more information about CVE-2021-40906?
You can find more information about CVE-2021-40906 on the CheckMK website (http://checkmk.com) and the GitHub repository (https://github.com/Edgarloyola/CVE-2021-40906).