A forgotten CTF Writeup
Foreword
This is my first ever CTF writeup I ever done in my life, since I ever delved into the rabbit hole of CTF and cybersecurity.
The challenge is from the CTFFlag Asia Junior
I’ll put a link here if you want to learn more:
CTFFlag Asia Junior
(I never feel so dumb myself UwU.)
The Kid Protocol - an UDP based application Protocol
From the challenge description:
Kid Protocol is an application-layer protocol that has just been created based on the UDP protocol.
The Python code below is the source code of the server running the Kid Protocol. If you have. Can you read this protocol and write a program to communicate with the server?
Access information:
1 | Server IP: 178.128.19.56 (Probably outdated, not working anymore) |