Hacking Knife (hackthebox)

First of all, I performed an nmap port scan on all ports. I had a look at the versions of SSH and Apache running and tried finding exploits for them using a search engine. I found one to enumerate SSH usernames on msfconsole and used this successfully. Unfortunately, a bruteforce attack using the discovered usernames using default passwords and a password list did not work. At the same time as the SSH attacks were running, I enumerated the website. I used Burpsuite's Repeater tool to have a look at the page's source code but could find nothing especially useful. I also ran dirbuster against it and used one of my own Python3 tools to check subdomains. These attacks did not turn up anything useful, so I went to bed! As I was drifting off, I saw again in my mind the website and its source code. I suddenly had two realisations of what I could try next! One idea I had was that I could try tailor made subdomains and directories / files. The top of the webpage had words which didn...