DUCA beginner CTF

Buffer Overflow Terminal

The program reserves 16 bytes for your name. Can you make it crash?

guest@duca:~/challenge

guest@duca:~$ ./welcome

Welcome to the DUCA greeting program.

A 16-byte buffer has been allocated for your name.

Enter your name (less than 16 characters):

>
name[16] — allocated memory 0 / 16 bytes written
Waiting for input…
Challenge goal: Enter enough characters to overflow the name buffer and trigger the simulated program error.
Need a hint?

The program asks for fewer than 16 characters, but it does not actually stop you from typing more. Try a much longer name—around 40 characters.