Writing buffer overflow exploits - a tutorial for beginners

[ammar_secret]

Buffer overflows in user input dependent buffers have become one of
the biggest security hazards on the internet and to modern computing in
general. This is because such an error can easily be made at programming
level, and while invisible for the user who does not understand or cannot
acquire the source code, many of those errors are easy to exploit. This
paper makes an attempt to teach the novice - average C programmer how an
overflow condition can be proven to be exploitable.
Enjoy it.