This post is a continuation of the Kioptrix series which I started a few weeks ago with the Kioptrix Level 1, Kioptrix Level 2 and Kioptrix Level 3 vulnerable by design virtual machines. In this post I focus on how I solved the Kioptrix Level 4 challenge. If you want to try this challenge yourself it can be downloaded here. Tools Used Netdiscover Nmap Firefox Gobuster SSH Client Echo MySQL Client Locate Sudo Enumeration: Netdiscover As the Kioptrix series are virtual machines in a downloadabl...