Date Thu 28 May 2020
Authors Damien Aumaitre, Nicolas Surbayrole
Category Software

Ansible is an open-source software automating configuration management and software deployment. Ansible is used in Quarkslab to manage our infrastructure and in our product Irma. In order to have an idea of the security of Ansible, we conducted a security assessment. This blogpost presents our findings.

Date Tue 12 May 2020
Author Philippe Teuwen
Category Hardware

In the context of the Inter-CESTI 2019 challenge, we "accidentally" found a timing difference disclosing the length of a PIN handled via the standard OwnerPIN.check JavaCard API. Here is the story.

Date Thu 07 May 2020
Author Nahuel Riva
Category Hardware

A blog post about how to reverse engineer a VxWorks based device.

Date Tue 24 March 2020
Author Maxime Rossi Bellom
Category Reverse-Engineering

In March 2020, Google patched a critical vulnerability affecting many MediaTek based devices. This vulnerability had been known by MediaTek since April 2019, and later exploited in the wild! In this post, we give some details about this vulnerability and see how we can use it to achieve kernel memory reads and writes.

Date Thu 16 January 2020
Author Nahuel Riva
Category Hardware

Third part of a blog post series about our approach to reverse engineer a Philips TriMedia based IP camera.

Date Tue 17 December 2019
Authors Alexandre Adamski, Joffrey Guilbon, Maxime Peterlin
Category Reverse-Engineering

In this second blog post of our series on Samsung's TrustZone, we present the various tools that we have developed during our research to help us reverse engineer and exploit Trusted Applications as well as Secure Drivers.

Date Tue 10 December 2019
Authors Alexandre Adamski, Joffrey Guilbon, Maxime Peterlin
Category Reverse-Engineering

In this first article of a series of three, we will give a tour of the different components of Samsung's TrustZone, explain how they work and how they interact with each other.

Date Tue 26 November 2019
Author Romain Thomas
Category Android

Analysis of Tencent Legu: a packer for Android applications.