2021

dwn – a docker pwn tool manager experiment

Years ago I learnt docker basics because I just couldn’t get that $ruby_tool to install. The bits of progress I’d make usually left my host’s ruby install in shambles. With docker though, I had quick reproducible build & run environments I could clean up easily without leaving a mess behind. The more I used docker, the more I’ve come to love it, and today it’s become a natural part of…

Android Application Specific Proxies, Easy Mode

In this post I want to share two things. First, a quick primer on how you would you go about navigating the source code when contributing to objection, and secondly an application specific proxy feature I added to it. While on holiday I wanted to look into a certain mobile application that dealt with medical information. I was mostly interested in the data that was sent and received by the…

Duo Two-factor Authentication Bypass

It’s too easy when hacking, to assume something is invulnerable and not interrogate it. This was the case for me when it came to Duo’s two-factor authentication solution. However, we were able to discover two variants of the same 2FA bypass. These rely on redirecting a victim’s push notifications to an attacker-controlled device, to authorise access to a victim account. Interactions with Duo had this fixed in record time, and…