I’m in the same position, I’ve made it into the box as a low priv user, and haven’t been able to progress from there. I’ve looked over the last few pages and taken some paths from other hints, but something is obviously going over my head. If anyone can push me in the right direction that would be greatly appreciated!
Edit: Made it a little farther. Was able to do actions as another user, and escape a restricted shell with some sticky stuff of my own. Found a user text file, but it isn’t what I expected. Still willing to take help!
Final Edit: Nevermind. Just had to take a break and eat some lunch, figured it out pretty quickly after that! The weird user flag issue I think was caused from me messing with t*r on it, because it was normal after a reset.