file-run2

https://play.picoctf.org/practice/challenge/267?page=8 Another program, but this time, it seems to want some input. What happens if you try to run it on the command line with input "Hello!"?

➜  CTF ./run
zsh: permission denied: ./run
➜  CTF chmod +x run
➜  CTF ./run       
Run this file with only one argument.
➜  CTF ./run -h
Won't you say 'Hello!' to me first?
➜  CTF ./run Hello!
The flag is: picoCTF{F1r57_4rgum3n7_be0714da}%  

• a linux executable, check with file run

• to run with hello, type hello after it

• ez