Bold Statements
Every year a group of us are happy to use the holidays to travel to Hamburg to meet other people and learn something new at the 32C3.
In this small series we’ll present you recaps of some talks we found most interesting, but you also should make sure to watch the recording of them. 😉
Continue reading “32C3 Recap – Part1”
Continue readingAs you know we (as in ERNW) are quite involved when it comes to vulnerability disclosure and we’ve tried to contribute to a discussion at several occasions, such as Reflections on Vulnerability Disclosure and ERNW Newsletter 50 Vulnerability Disclosure Reflections Case Study.
In this post I want to add (yet) another perspective, motivated by a disclosure procedure which just happened recently. Continue reading “Another Perspective in Vulnerability Disclosure”
Continue readingHello everybody,
this time I’d like to share some thoughts and results about our telco research last year. We gathered a lot of information out of some projects we’d like to share and discuss with you. The following sections also provide an idea of the upcoming Telecommunication Security Workshop I will give with Kevin Redon at Troopers (click). The workshop will be about Radio Network Security (covered by Kevin) and security aspects of the Core Network (covered by myself), mainly focusing on Voice over LTE (VoLTE). That’s also the topic of today’s post.
Continue reading “Security Analysis of VoLTE, Part 1”
In the previous parts of this series (part 1, part 2, part 3, part 4) we covered several aspects of IPv6 security, mainly on the infrastructure level. In today’s post I will follow up by briefly discussing so-called First Hop Security features.
Continue readingNiklaus and me had the chance to talk about our research on RedStar OS on the 32nd Chaos Communication Congress in Hamburg this year. You can see the talk online at media.ccc.de or on Youtube.
We talked about the details of the watermarking mechanism that we found in July and additional features of RedStar OS like it’s “Virus Scanner” and the system architecture. During the days after our talk we were able to find watermarks applied by RedStar OS in the wild on some sites on the Internet. We can confirm at least 7 different instances of RedStar OS that have applied watermarks to JPGs. Cleaning up the data is work in progress and we will get back to you with the results! Niklaus has put our presentation and additional resources in the git. Feel free to join us in our research and make the world a safer place!
32c3 was amazing, as every time! Big thanks to all the volunteers who made this possible. Niklaus and I enjoyed every second! 🙂
Hope to see some of you at Troopers 16 in March 2016!
Cheers,
Florian
Continue readingIn the interim we’ve worked on the agenda of next year’s IPv6 Security Summit (for those not familiar with the event, here’s the 2015 edition and here the one of 2014), and some new talks have been added.
Continue reading “#TR16 IPv6 Security Summit – New Talks Added”
Continue readingAs we come to the end of the year we can’t help but take a moment to thank all of your who made TROOPERS15 special! It just makes us all the more pumped to kick it up a notch for TROOPERS16!! #BestWeekEver
Happy Holiday and much Joy to you in the New Year!
Your TROOPERS Team
Continue reading “4th Round of TROOPERS16 Talks Accepted”
Continue readingIn this part of our little series (part 1, part 2, part 3) we continue discussing IPv6 specific filtering of network traffic, namely at intersection points.
As stated in the 1st part, a number of potential security problems in IPv6 networks are related to Extension Headers of IPv6, in particular when combined with fragmentation. At the same time, as of today (December 2015) there is no Internet service or application that actually needs those headers.
Continue readingAs we are giving another round of our Incident Analysis workshop at Troopers16, we wanted to give a little sample taste what you can expect.
Continue reading “Teaser on the TROOPERS16 Incident Analysis Workshop: Analyzing the current Spam Flood”
As part of my research on the security of paravirtualized devices, I reported a number of vulnerabilities to the Xen security team, which were patched today. All of them are double fetch vulnerabilities affecting the different backend components used for paravirtualized devices. While the severity and impact of these bugs varies heavily and is dependent on a lot of external factors, I would recommend patching them as soon as possible. In the rest of this blog post I’ll give a short teaser about my research with full details coming out in the first quarter of 2016 .
Continue reading “Xen XSA 155: Double fetches in paravirtualized devices”
Continue reading