Nudges: 1) When you feel like you’ve exhausted all enumeration, it’s time to figure out how to satisfy the odd one. 2) Try the only information you have (assuming you found it), but perhaps go from the /R.+/. to the /A.+/. 3) Who’s the boss? 4) Oh look, another one! 5) Many ways, one goal.
It’s a fun machine but as @Fugl said. It’s too CTF-like.
The hardest part is to figure out how to retrieve the credentials from the odd port. After that just use the credentials in one of the restricted directories that you should have seen at the early stages of your enumeration. Once you’re in just look for more passwords and that’s enough for getting the root flag and user flag
I wasted hours trying to find the the second to last login screen. If you have found the mother load of credentials and have not yet found the right place to put them, then make sure you scan port 80 using dirb NOT gobuster. The common list will do.
okay, so till now i have a credential but don’t know where to use it. 2 login page and one auth page, but again, don’t know how or what to supply for login