I tried harder | My experience with the OSCP certification

Sometimes, there comes a point in your life where you feel that you’re stuck in a routine, drowning in boredom and useless stress, your career is becoming dull, and you just feel that you’re no longer learning anything new; even worse, you’re no longer working on what you’re good at, you’re losing the skills…

[Pwnable.kr] input writeup – Toddler’s bottle

This level is particularly fun, kind of easy, straight forward and really useful in the long run. Very often, to exploit a binary or an executable, you need to provide data or input to it, and there are multiple ways you can do that, depending on how the executable takes them. Let’s…

[Pwnable.kr] Why random number aren’t really random

We’ve made it so far to the “random” challenge. Granted, the challenges don’t need that much explaining as they are somewhat easy, but I try to dive into some of the details, because I believe, that if you master the little details, and know how things work, and develop a…

[Pwnable.kr] passcode writeup – Toddler’s bottle

As the hint states, this level’s goal is to try and hack a passcode based login program. If we view the source code and/or execute the program, we’ll notice that it’s straightforward, it asks you for your name, then enter two passcodes, and then the program compares those two passcodes…

[Pwnable.kr] bof writeup – Toddler’s bottle

You probably guessed what this level is about : we will try to trigger a buffer overflow (bof) in order to smash the stack and overwrite something; a return address, a variable, a pointer or something ! The link of the source code is provided to us, let’s check it…

[Pwnable.kr writeups] An attempt to solve Toddler’s bottle

Hello, again. As you probably may know, one of the things that security people enjoy doing in their free time, is play CTFs for fun, or to widen their knowledge and sharpen their skills. I’ve had my share of CTFs too, and in this humble article, I’ll try to publish…

Control is an illusion Elliot !

Hello again ! It’s been a while. Well today I wanna write about a small [useful at the time] program i made like, 7 years ago, using Visual Basic 6. I found it while I was looking through my old stuff in an old website. Here’s a sneak peek of…

A study in green

Here I’m back, my first attempt to publish a write up. About two years ago, I participated in a Moroccan CTF competition. And there was a particular mind bending networking level (looks easy though after we’ve solved it). In this post, I would like to share a write up explaining…

Hello friend !

Why start a blog ? Well, I’m bored…mainly! But also, because I’d like to share my humble experiences with stuff I broke, stuff I fixed, stuff I made, and stuff I didn’t understand but now I do; hoping to bring an added value to anyone who happens to read my…