Following Enno’s research on “Testing RFC 6980 Implementations with Chiron“, we decided to redo the experiment with FreeBSD targets.
Continue reading “Testing RFC 6980 Implementations of FreeBSD”
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GDPR and Pseudonymisation – Easing the Pain of Regulation
27 April 2016 marked a turning point for a lot of countries as well as a lot businesses worldwide: EU regulation 2016/679 (going by it’s more widely known name General Data Protection Regulation and abbreviated GDPR) was adopted by the European Parliament, the Council as well as the Commission [1]. Especially readers from countries outside of the EU might ask “Why should this be of interest for me?”. Continue reading “GDPR and Pseudonymisation – Easing the Pain of Regulation”
Continue reading6th No-Spy Conference
Last friday Florian and me attended the 6th No-Spy Conference in Stuttgart, Germany. We gave a talk about surveillance and censorship on modern devices in North Korea and discussed various aspects with the attendees. The atmosphere was very welcoming and we had some nice discussions about various topics which allowed us to better clarify some things. The slides are available here.
Thanks to the organizers for having us!
Continue readingRIPE74 / Why IPv6 Security Is So Hard
I’m on my way back from the RIPE74 meeting in Budapest. It was a great event: quite a few nice technical talks in the plenary, productive working group meetings and some really good hallway discussions.
Big thanks to the RIPE NCC team for the smooth organization and for taking care of us!
Continue reading “RIPE74 / Why IPv6 Security Is So Hard”
Continue readingOne Step Closer – RDNSS (RFC 8106) Support in Windows 10 Creators Update
Good Afternoon,
It is a pleasant surprise for many (us included) that Microsoft implemented support for the RDNSS (RFC 8106) option in Router Advertisements beginning with the Windows 10 Creators Update. Interestingly, I wasn’t able to find any official documents from Microsoft stating this. As we are involved in a lot of IPv6 related projects for our customers, the lack of RDNSS support for Windows and DHCPv6 for Android is a major pain point when implementing IPv6 in mixed client segments, as you need to implement both mechanisms to ensure that all clients do get the relevant network parameters. I won’t beat on the dead horse, but Microsoft’s decision is a huge step in the right direction and one can hope that one day Google finds a “compelling use case” to implement at least stateless DHCPv6 for Android. Continue reading “One Step Closer – RDNSS (RFC 8106) Support in Windows 10 Creators Update”
Continue reading(Mostly) New, Interesting, and Security-focused Open Source Projects
Troopers ’17 – the 10th edition – madness is over and hopefully all of you are well rested and recovered after this special week. Of course the rest of the world did not stand still and thus Google lifted the curtains on a new public portal collecting and promoting the Open Source Software projects developed by employees of Google: opensource.google.com. There are a lot of interesting projects that might incubate new interesting developments. And even security oriented tools and projects (51 at the time of writing to be precise) are publically available Continue reading “(Mostly) New, Interesting, and Security-focused Open Source Projects”
Continue readingTesting RFC 6980 Implementations with Chiron
In the recent post on the IPv6 properties of the latest MS Windows versions I announced another one providing details on the RFC 6980 related testing I had performed. So here we go.
When doing IPv6 security testing there’s mainly four toolkits which can be used: Continue reading “Testing RFC 6980 Implementations with Chiron”
Continue readingCloudflare Incident #Cloudbleed
Exactly one week ago I noticed an “urgent” tweet from Tavis Ormandy to get in contact with the Cloudflare team.
Normally when a tweet like this appears from Tavis, something is horribly broken. Well, today we know the background of this tweet as the bug tracker issue went public and it exposed quite a bug from Cloudflare. Continue reading “Cloudflare Incident #Cloudbleed”
Exploitation of IMS in absence of confidentiality and integrity protection
IP Multimedia Subsystem (IMS) offers many multimedia services to any IP-based access network, such as LTE or DSL. In addition to VoLTE, IMS adds service provider flexibility, better QoS and charging control to the 4th generation of mobile networks. IMS exchanges SIP messages with its users or other IMS and usually these communications are secured by TLS or IPSec. But if an attacker manages to break the confidentiality and the integrity with IMS, he would find it vulnerable to several attacks. Continue reading “Exploitation of IMS in absence of confidentiality and integrity protection”
Continue readingWhite Paper on Incident Handling First Steps, Preparation Plans, and Process Models
We just published my Whitepaper about First Steps, Preparation Plans, and Process Models for Incident Handling, that I wrote to pass the time between Christmas and New Year. The whitepaper sums up information that I consider to be useful to prepare for IT security incidents as a conclusion from the incidents in which we supported over the past year. Continue reading “White Paper on Incident Handling First Steps, Preparation Plans, and Process Models”
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