pentester.land· Nov 15, 2022· by Stefan Schiller (@scryh_)

Checkmk: Remote Code Execution by Chaining Multiple Bugs (1/3)

Target Program: Checkmk

🎯 Vulnerability: Server-Side Request Forgery (SSRF)

💡 Defense Fix: Enforce URL whitelisting, block private IP ranges (10.0.0.0/8, 169.254.169.254), and mandate AWS IMDSv2 headers.

#RCE#Code injection#SSRF#Line Feed injection#Arbitrary file read#Authentication bypass#Security code review