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Musings on Technology

I sometimes write about Technology, Cybersecurity and keep public notes on this site.
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Latest articles


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."