Anatomy of Pokemon glitches
Digging into the anatomy of Pokemon Yellow glitches, or how to impress your school friends during break time.
SSRFmap - Introducing the AXFR module
After reading a great blog post about a CTF challenge where you had to chain several SSRF to get the flag, I took some time to improve SSRFmap, fix the bugs and merge the Pull Requests. Then I implemented a new module called axfr to trigger a DNS zone transfer from the SSRF using the gopher protocol. This blog post is about my journey on implementing it.
Ph0wn CTF 2019 - Flag Digger
TLDR: It’s never too late to try to solve an old challenge. This blog post is a quick writeup of a challenge from the Ph0wn CTF 2019 where you were given a small chip and you had to extract the flag from it.
DLS 2024 - RedTeam Fails - "Oops my bad I ruined the operation"
Recently I had the pleasure to give a rump during the “Drink Love Share” meet organized by TheLaluka. This blog post will delve deeper into the topic.
This rump told the tale of a little Dino starting in the red team industries.
Offensive Nim - Auto Obfuscate Strings with Nim's Term-Rewriting Macros
TLDR: Use nim-strenc, or read below to discover how to write your own Nim macro.
Lately I discovered the repository Yardanico/nim-strenc, you can use it very easily in your Nim code by importing strenc.
Let’s try it on this simple example. First you need to install the package using this command: nimble install strenc
STHACK2022 - Catch the bird, a trip from web to IRL
- Challenge author: ajani
- Category:
web,physical
The challenge started with the following Post Card
FCSC - CTF Writeup
FCSC - FRANCE CYBERSECURITY CHALLENGE 2020
Some writeups of severals web challenges from the FCSC 2020.
Challenges’ Writeup
DVID - Damn Vulnerable IoT Device
Who ever wanted to learn about Hardware Hacking ? I found this small opensource IoT hacking learning board while I was in a security event. It is designed by @vulcainreo and cost around 45€, more than 300 units were shipped around the world.
Let’s dig into this awesome project and clone the git : https://github.com/Vulcainreo/DVID.git !
Challenges’ Writeup
Ph0wn CTF 2019 - Smart Devices CTF
Another week another CTF, this time it was the Ph0wn at Sophia Antipolis (France). I teamed up with members from @Maki, @iansus, @MansourCyril and @0hax. We reached the second place of this IoT/Hardware CTF.
Writeups’ challenges
UYBHYS - Sea Monster Attack & Defense CTF
Last week-end I teamed up with members from Aperikube for an Attack/Defense CTF which took place in Brest - France. In this “small” blog post I will write about this experience, the challenges and our methodology :)
HIP19 Writeup - Meet Your Doctor 1,2,3
Last wednesday I was in the Hack In Paris event for the 3rd time. As always there were some great conferences and challenges, and a new competition called “Hacker Jeopardy” which was very fun! During the Wargame I focused my time on Web challenges based on the graphql technology which was new to me, you will find below my writeups for the Meet Your Doctor challenges.
SIGSEGV1 Writeup - MD Auth
Let’s talk about the “MD Auth” challenge, I admit I started with this challenge thinking it would be about “Markdown”. I was wrong but it was nonetheless interesting to solve.
An XSS Story
Last night I stumbled across an XSS in a bug bounty program, this was quite fun to exploit.
WHID Injector - Tips and Tricks
What is it ? The WHID Injector is USB Key which act as a remote keyboard. Basically it sets up a Wifi Access Point where you can connect and send whatever you want on the machine. It also has a Rubber Ducky payload converter, an exfiltrated data tab and many more.
What can I do ? Everything you could do with a keyboard plugged into a computer, for example : using WHID Toolkit you can spawn a reverse-shell :D
Where to buy a WHID Injector ? I got mine from Aliexpress, it’s also available on ebay around 15+ $ ;)
French Croissant - or why you need to lock your computer
Last year the first day of my internship I was given a computer and asked to install and secure it for two days. After that delay anyone can try to attack and compromise my machine, and if so I was welcome to buy some “French Croissants” to the team while the attacker explain his method to get access into your computer the next morning. There are some techniques you need to be aware of when you’re securing your machine, the list below is not exhaustive.