Orange Tsai published a really interesting writeup on their discovery of CVE-2019-1003000, an Unauthenticated remote code execution (RCE) in Jenkins. There was a box from HackTheBox.eu that ran Jenkins, and while the configuration wasn’t perfect for this kind of test, I decided to play with it and see what I could figure out. I’ll get the exploit working with a new payload so that it runs on the Windows environment.