Another year, another summary. I’m kind of sad that this year is coming to an end, as 2017 made me develop my skills more than every other year summed together. But I have plans, big plans for the future, which some of them, I’m going to briefly introduce in this post.
Welcome to another challenge from pwnable.kr. This time we’re going to work on flaws made while generating pseudo random numbers.
In order to keep this challenge streak alive, I decide to play with another one from pwnable.kr called flag. This time our task is purely reverse enginnering, since we’re only given a binary, with no source code, no listening applications or ssh connections.
Another challenge from pwnable.kr will show us how to perform a simple buffer overflow attack.
Let’s start another challenge from pwnable.kr called collision, which is next one in Toddler’s Bottle category.