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 my daily workflow. It’s not without its flaws though, so in this post I want to show you an experiment of mine where I tried to write a docker pwn tool manager. A “docker-compose for hackers” if you will, called dwn (/don/). You can find it here: https://github.com/sensepost/dwn.
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. Introduction 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 application so this meant proxying the traffic into Burp. I did not have a test device with me, so I had to use my personal device. This being my personal device meant that once I had the proxy set, certain applications would cease to function normally (especially those with SSL pinning) as Burp was in the middle.
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 were easily some of the best vendor/researcher interactions we’ve ever had. If you’re looking for their technical guidance around this, you can find it here.
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