When I recently joined the Windows Security team at ERNW, Enno asked me if I wanted to write a ‘welcome’ blogpost on a topic of my choosing… Up for the challenge, and since I had been playing with BloodHound & Cypher for the last couple of months, I first thought I would do something on that topic.
However, after gathering my thoughts and some Cypher I had collected here and there, I realized that the topic of Bloodhound Cypher might actually require several blog posts… And so I changed my mind. I will keep the joys of Cypher for later, and in this post, I will talk about a tiny tool I wrote to query the Mitre ATT&CK™ knowledge base from the comfort of a PowerShell prompt.
In Mai 2018, Tobias and me were in Cologne at the Building IoT conference. The topics of the talks covered a broad spectrum of the Internet of Things field. There were three tracks covering different topics ranging from the jungle of IoT protocols, secure Linux hypervisors specially developed for IoT modules to machine learning and blockchain.
I had the pleasure to give a presentation at the Security Interest Group Switzerland Technology Conference about modern application stacks and how they can be used to improve infrastructure and application security posture – the slides can be found here. Besides seeing a lot of old friends, I particularly enjoyed a round table discussion on security integration into CI/CD pipelines. There was a relevant exchange on approaches that actually work and were tested in environments beyond just recommending some container scanner (product). One participant had an interesting case study on how they enabled developers to maintain WAF policies in configuration files in their code repository including automated deployment to the WAF. He also emphasized that the environments with actual security benefits resulted from a close cooperation between development and security team (were domain knowledge was combined 😉 ).
IoT is everywhere right now and there are a lot of products out there. I have been looking at an IP Gateway lately and found some serious issues. The Busch-Welcome IP-Gateway from Busch-Jaeger is one of the devices that bridges the gap between sensors and actors in your smart home and the network/Internet. It enables the communication to a door control system that implements various smart home functions. The device itself is offering an HTTP service to configure it, which is protected by a username and password. Some folks even actually expose the device and its login to the Internet. I tried to configure one of these lately and stumbled upon some security issues that I would like to discuss in this blog post. Continue reading “Security of Busch-Jaeger IP Gateway”
We are very excited to publish some (more to come!) of our photos from TROOPERS18! Based on feedback from #TR18 we would also like to take a moment for our official TROOPERS photographer to introduce himself and tell you a little about what inspires him.
Last week (25th – 27th April), I attended the “Sicherheit 2018” in Konstanz which is the annual meeting of the security community of the Gesellschaft für Informatik e.V. (GI) in Germany. The conference is in equal proportions attended by researchers and people of the industry working in security-related disciplines which lead to lively and pleasant discussions conversations. Continue reading “GI Sicherheit 2018 Conference”
Lately I’ve been analyzing a .NET binary that was quite interesting. It was a portable binary that shipped without any third-party dependencies. I started looking at the .NET assembly with ILSpy and noticed that there was not that much code that ILSpy found and there were a lot of references to classes/methods that were neither in the classes identified by ILSpy nor were they part of the .NET framework.
Stefan and I had the pleasure of joining a one-day closed workshop on Industrial IoT Security. As always, we ended up with plenty of new research ideas and great contacts. We hope of course to post on follow-up research, but in this short post we quickly want to publish our slides which contain our input for the workshop. We mainly presented on IT security challenges for modern IIoT environments and presented some case studies for successful hardening/protection of IIoT environments as well as security in IIoT product development.