I am struggling with the privilege escalation for the final flag. I have a shell, but the GTFObins escalation route files with !/bin/sh not found. I am told this is because I don’t have a stable shell, but using msfvenom (the shell is less interactive) that the metasploit route, but both shells yield the same result.
I read in my searching that this machine doesn’t behalf as expected and another exploit is required, but through LinEnum and LinPeas I am not seeing what that would be. Appreciate a nudge.
Thanks