Overview

In this project, you will implement a vulnerable C program which has a buffer overflow vulnerability. You will then demonstrate how you can win a game which is supposed to be unwinnable. You achieve this goal via exploiting the buffer overflow vulnerability.

Specification

We will determine you win the game if the program prints "You won!".

• You are not allowed to change the main function().
• You can change your_fcn() in whatever ways as you like, but you must exploit a buffer overflow vulnerability, as opposed to an integer overflow vulnerability.
• Your must use your seat number as your buffer size - this guarantees everyone's solution would be different.
• Hardcoding is okay.

Acknowledgment

This project is borrowed from University of Maryland (CMSC 414: Computer and Network Security), with some slight changes.