External articles

Theft of NTLM v2 hash code via Outlook vulnerability (CVE-2023-35636) (2024)

Showcasing exploitation of the calendar sharing feature in Microsoft Outlook, whereby adding two headers to an email instructs Outlook to share the content and contact a designated machine, creating an opportunity to intercept NTLM v2 hash code.

GraphQL for Pentesters (2023)

Introducing GraphQL security for penetration tests: basic concepts, security considerations & reconnaissance, vulnerabilities and attacks, offensive tools.

ffuf advanced tricks (2022)

Covers advanced use case of ffuf: the configuration file, reading from standard input, avoiding false negatives with match all and filtering with regexp, use of external payload mutators.

Attaques Unicode - Rump BreizhCTF 2k22 (2022)

Case transformation collision and Hostname splitting Unicode attacks.

Security.txt | Progress in Ethical Security Research (2020)

This article looks to answer the question of how widely adopted security.txt has become, 3 years on from when it was first drafted.

Ruby 3.2.0 Preview 1 : vivre dans le futur (2022)

Overview of the new features that will come in Ruby 3.2.0: WebAssembly (WASM / WASI), ReDoS protection, Unicode v14.

Some sudo elevation of privilege vulnerabilities (2021)

An introduction to 3 sudo vulnerabilities: CVE-2019-14287, CVE-2019-18634, CVE-2021-3156.

Internal articles

Presentations

SafetyNet Attestation API bypass (2023) 🇫🇷

Rump at BreizhCTF 2k23 presenting SafetyNet Attestation API bypass

Cracking hashed known_hosts (2022) 🇬🇧

Cracking hashed SSH known_hosts presentation

XSS classification model (2020) 🇬🇧🇫🇷

Types of XSS evolution

Markdown (2016) 🇬🇧

Mardown for daily usage

GraphQL for Pentesters (2022) 🇬🇧

Introducing GraphQL security for penetration tests

Unicode Attacks (2022) 🇫🇷

Rump at BreizhCTF 2k22 presenting two unicode attacks

OTP (2017) 🇫🇷

One-time pad cryptography

Create python package (2016) 🇬🇧

How to create a simple python package