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2/14/2025

Spell/MVM Checkers CTF Author Writeup

Spell/MVM Checkers was a CTF challenge I wrote for the ECSC Vienna bootcamp 2024. The challenge was also plaed at x3CTF feat. mvm 2025.

#x3CTF#libmagic#mvm

Welcome new employee! As you are aware, we at SpellCheckers MVMCheckers Inc. are the foremost experts at creating magical days for our clients. Please fell free to explore our administration application. Be aware that we are currently rebuilding the system using our proprietary, cutting edge interpreter.
2/3/2025

Debugging PHP in a Docker container with PhpStorm

This post explains how to debug PHP running in a Docker container with PhpStorm.

#PHP#Docker#PhpStorm

A screenshot of the quizzing section of this challenge. "Question 1. What is the meaning of life? 42, There is no meaning, To be happy, To help others."
3/25/2024

openECSC 2024 – Life Quiz CTF Writeup

Life Quiz was a web challenge in round 1 of 2024's openECSC

#PHP#Race Conditions#Command Injection

A screenshot of the quizzing section of this challenge. "Question 1. What is the meaning of life? 42, There is no meaning, To be happy, To help others."
7/6/2023

Gitlab CI/CD Docker and Performance

Using Docker in Gitlab CI/CD exposes some issues and performance problems. In this article, we will discuss how to deal with them.

#GitLab#CI/CD#Docker

A large heading spelling out "Docker in Docker (dind) with a large rectangle below. The large rectangle has the title "Runner Container". The large rectangle contains a smaller rectangle with the title "New Container (Our application, Database, or other)".
6/26/2023

Google CTF 2023 — Under-Construction Writeup

Under-Construction was a web challenge in 2023's Google CTF involving PHP, Python and HTTP parameter pollution.

#Parameter Pollution#Python#PHP

Google CTF platform screenshot of the challenge description for Under Construction. "We were building a web app but the new CEO wants it remade in php."