TryHackMe
Relevant - TryHackMe Room
In this room, you will perform a full penetration test. The goal is to find and report all the vulnerabilities and give advice on how to patch them - also a good lesson on rabbit holes.
Daily Bugle - TryHackMe Room
In this room, we will compromise a Joomla CMS account via SQL Injection, practice cracking hashes and escalate your privileges by taking advantage of yum with sudo privileges.
Skynet - TryHackMe Room Writeup
In this room, we will cover using Gobuster on a website, using SMBclient and SMBMap to enumerate shares and exploiting a CMS RFI vulnerability as well as wildcard privilege escalation.
Linux Privilege Escalation
In this room, we will walk through a variety of Linux Privilege Escalation techniques - ranging from weak file permissions and cron jobs to environment variables and SUID executables