Ping Pong - HeroCTF.fr

You will need

• Text / code editor
• Binary to ASCII conventer (e.g. https://onlinebinarytools.com/convert-binary-to-ascii)

Solution

• Download output.txt file, and open it in a text editor
• Replace (Ctrl + H)

  • PONG with 0

  • PING with 0

  • New line character with nothing At the end of it you should got

    01001000011001010111001001101111011110110111000000110001011011100011011001011111011100000011000001101110001101100101111100110001001101010101111101100110011101010110111001111101

• Open Binary to ASCII conventer and paste it in

Flag

Hero{p1n6_p0n6_15_fun}

Credits

• Writeup by mble
• Solved by mble
• WaletSec 2021

License

CC BY 4.0 WaletSec + mble