Protostar - Stack 01

In this challenge we're going to use the previous technique of modyfing variables on the stack in order to overwrite the value into the desired one.

Protostar - Stack 00

Introductionary challenge supposed to teach about the concept of memory in computer systems, especially the stack.

AngstromCTF - md5

The story about why we have to check types of the input passed in PHP.

AngstromCTF - slots

Slots is an easy challenge that made me struggle a bit.