Task $1$: The Vulnerable Program

You are given a vulnerable program that has a format string vulnerability. This program is a server program.

When it runs, it listens to UDP port $9090.$ Whenever a UDP packet comes to this port, the program gets

the data and invokes myprintf$()$ to print out the data. The server is a root daemon, i$.$e$.,$ it runs with the

root privilege. Inside the myprintf$()$ function, there is a format string vulnerability. We will exploit this

vulnerability to gain the root privilege.