Lab

try to login with usually way

 ssh htb-user@10.129.205.109

when u try usually command like ls,cd,whoami we notice error refer to shell is rbash

image.png

The command “compgen -c” gave me a list of allowed commands that I could make use of.

I did perhaps tried to see if I can create functions and at my surprise I could , let’s see if I can abuse this in any way.

Because of the restriction on “/” I have encountered few difficulties , whatsoever I decided to adopt a different approach: Tried to override the login shell and launch bash , however initially I have still encountered rbash behaviour so I tried pressing Ctrl+C which killed the rbash process and dropped me into the actually bash shell beneath it.

 ssh -t htb-user@10.129.205.109 bash