Pre-Auth Remote Code Execution - Web Page Test Sep 23, 2022 While working at ManoMano, I spent some time auditing various software we rely on for end2end tests. During this, I stumbled upon Web Page Test, a software that will query and render a website with a headless browser in order to audit its performance, usability, loading time, etc. Back then, our tech ecosystem was relying on this, but we, at the Security Team explained why this software seemed way too prone to security issues. One week later, Web Page Test was gone because 'a pre-auth SSRF has been found in no time'. But as the engineering crew trusted us on this, we really wanted them to know that they trusted us for good reasons. So during my next R&D week (1 out of 4, so yup, this was my free time), I spent a few more days to turn this SSRF into a preauth RCE, including ways to exploit both WPT master and workers.

RCE on Spip and Root-Me, v2! Aug 16, 2022 Some more 0-day research done on Spip, includes preauth and postauth RCE. We're also welcoming our first guest-writer t0 that will introduce another post-auth RCE he found! Disclosing a bit late but hey, now it's there! :)

1001 ways to PWN prod - A tale of 60 RCE in 60 minutes Jul 14, 2022 In May 2022, I've been invited to give a talk to the HitchHack event in Vannes. This is the same event I gave my very first talk exactly 4 years ago. To celebrate, we'll go through many exploit chains I went through, as always, sharing knowledge and fun at the same time! This is basically a huge bag of ideas, with over 70 methods to gain remote code execution from nothing. Enjoy!

pty4all - The shells you deserve Jan 29, 2022 I hope you like tooling, bash scripting, and uber-duper shells, because we're going to enhance the sad shells we had to happy automated, multiplexed, encrypted, fully interactive PTYs with push notification and automatic persistency!

Failed02 Pulse Secure VPN and Guacamole WebSocket Hooking Dec 18, 2021 Just an incomplete exploit chain worth sharing. It'll show an attempt to exploiting Pulse Secure VPN through its guacamole and postgres components. It implies socat, metasploit, puppeteer, and WebSocket hooking!

RCE with SSRF and File Write as an exploit chain on Apache Guacamole Nov 20, 2021 While doing research on various topics, I stood upon Guacamole, a software that can be used as a connection bastion or protocolar gateway. It has many original vulnerabilities that lead to a Remote Code Execution once chained. Let's begin, shall we?

Get shells with JET, the Jolokia Exploitation Toolkit Oct 29, 2021 I spent too much time hacking on Jolokia, so here's an exploitation toolkit, it provides file read, write, rmi injection, information disclosure, and much more. Enjoy!

Failed01 - DOS to RCE in jolokia Oct 3, 2021 Some exploits are just too fun to be true. This first example attempts to exploit a web application through JVM options modification using jolokia coupled with a DOS attack. Fun right? But as explained, this doesn't work, and here's why!

SSRF to RCE with Jolokia and MBeans Feb 28, 2021 Exploitation writeup for a RCE a found recently, involving a path traversal, an SSRF, jolokia endpoints, and Tomcat jsp files!

RCE on Spip and Root-Me Sep 29, 2020 Vulnerability research write-up on spip, the web framework used by root-me.org. The issues found goes from XSS to RCE, passing by SQLi!

A Helping Hand May 3, 2020 Help a friend to troupleshoot issues on their server isn't always an easy thing. There are many ways to achieve this, and I'm going to show you three different solutions. We'll make use of ssh, tmux, tmate, gotty, socat and even ngrok.

Reverse XSShell Feb 22, 2020 Having some fun playing with xss and websockets. A different approach to reverse shell and their contexts!

Infosec made easy Feb 3, 2020 Bien souvent, je me retrouve à parler d'infosec avec des personnes très novices, voir complètement étrangères à ce milieu. C'est pourquoi je vous propose aujourd'hui un petit récap des attaques classiques, mais expliqué 'avé lé mimines ! '

Wordpress Subpath Auditor Jan 25, 2020 Introduction to Wordpress Subpath Auditor, a homemade tool that can be used to audit various components within a Wordpress installation. It relies on docker, git, php, wordpress, python, and virtualenv.

Ngrok your DockerSploit Dec 15, 2019 Tired of broken tools? You broke your system frequently by installing random sh*t? So do I! Let's see how to use docker, metasploit, ngrok and aliases in order to simplify your life and keep your system alive while hacking the planet!

GreHack 2018 Nov 16, 2018 GreHack 2018 is an hacking event (conferences and CTF) that takes place each year at Grenoble in France. Last year was the first time I went to an event like that, this year, I bring you in !

CSAW - Algebra Sep 16, 2018 Miscellaneous challenge that encourage the CTFer to either code an equation solver, of use one already existing.

CSAW - Big boi Sep 16, 2018 Binary exploitation of a dummy command executor, simple buffer overflow of a function's parameters.

CSAW - Shell->Code Sep 16, 2018 Binary exploitation using linked lists in order to store parts of a shellcode in many places and then link their execution with jumps.

CSAW - Short Circuit Sep 16, 2018 Hardware challenge on paper! This task consists in getting the internal state of a (simple) circuit, bit by bit, and convert it to ascii texte.

Security Fest - Excess ess 1 Jun 4, 2018 Web challenge about XSS and browser behavior. It's all about finding a bypass in order to execute a javascript function after its references has been removed.

PWN 4/4 : Stack Pivot ToZeMoon ! May 10, 2018 The basics of binary operation are normally acquired, let's go for a practical operation with a stack pivot!

PWN 3/4 : SaperliROPette ! May 9, 2018 Introduction to Return Oriented Programming (ROP) and practical example.

PWN 2/4 : Return to libc, pick a shell ! May 8, 2018 Introduction to Return to libc (ret2libc) and practical example.

PWN 1/4 : Buffer Overflow, where it all began May 3, 2018 Introduction to binary exploitation, ELF format and shellcode writing.