Events

hardwear.io: Applied Physical Attacks on x86 Systems

stolen off the internet

On Monday the 28th of September 2015 a rather rare event occurred. At around 4 a.m. the moon changed its colour into a dim of red, luckily the sky was clear enough to see something.

[ picture stolen from NASA ]

If you missed that event your next chance will be in about 15 years or so.

The reason for being awake this early wasn’t the moon in the first place but what followed afterwards – my trip to the hardwear.io Security Conference in The Hague. Continue reading “hardwear.io: Applied Physical Attacks on x86 Systems”

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Building

The Strange Case of $SOME_SOFTWARE Adding an IPv6 Extension Header, and an Internet Router Dropping Them

Last week Christopher and I were the instructors of an IPv6 workshop. In this one we usually build a lab with the participants incl. a variety of routed segments and native IPv6 Internet access. Once the latter part is implemented people start poking around and surfing the Internet from their laptops, not least to find out which sites they can actually reach from an v6-only network (please note that actually there are many).

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Events

Being at VB2015…

I am currently at the 25th Virus Bulletin International Conference in Prague. The VB2015 is hosted by the Virus Bulletin portal and provides three full days of learning opportunities and networking.

VB2015 focuses on the key themes:

  • Malware & botnets

  • Anti-malware tools & techniques

  • Mobile devices

  • Hacking & vulnerabilities

  • Spam & social networks

  • Network security

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Breaking

VMware did it again: vCenter Remote Code Execution

Yesterday 7Elements released the description of a Remote Code Execution vulnerability in VMware vCenter. The information came in at a good point as I’m at the moment drafting a follow-up blogpost for this one which will summarize some of our approaches to virtualization security. The vCenter vulnerability is both quite critical and particularly interesting in several ways:

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Building

Python For Hackers

Python has reached a defacto standard in exploit development lifecycles and most of the proof of concept tools you’ll find out there are written in Python (besides the metasploit framework, which is written in Ruby). Python allows to write scripts handling with remote services, fiddling with binary data and interacting with C libraries (or Java in case of Jython/.Net in IronPython) in a fast and easy way. The huge standard library with it’s “battery included” principle removes some of the dependency hell known from other frameworks/languages. I want to share some of my python coding experiences with you, and maybe this could give some helpful tips for your future work, to make the world a bit safer 🙂 (PS: most of the examples are written in Python 3.x or compatible to both Python branches).

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Breaking

New iOS Version – New Lockscreen Bypass

At the 16th of September Apple released its new version of the mobile operating system iOS 9. As several versions before, this new iteration suffers from a weakness that makes it possible to bypass the lockscreen without entering the respective PIN code. Exploiting this flaw requires Siri to be enabled and phyiscal access to the phone. A successful exploitation results in a major loss of confidentiality as all photos and contacts in the phonebook can be accessed by the attacker. The following steps lead to the lockscreen bypass:
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