Session
Hauptprogramm 35C3
Security

In Soviet Russia Smart Card Hacks You

Clarke
Eric Sesterhenn
The classic spy movie hacking sequence: The spy inserts a magic smart card provided by the agency technicians into the enemy's computer, … the screen unlocks … What we all laughed about is possible!

Smartcards are secure and trustworthy. This is the idea smart card driver developers have in mind when developing drivers and smart card software. The work presented in this talk not only challenges, but crushes this assumption by attacking drivers using malicious smart cards.

We will present a fuzzing framework for *nix and Windows along with some interesting bugs found by auditing and fuzzing smart card drivers and middleware. Among them classic stack and heap buffer overflows, double frees, but also a replay attack against smart card authentication.

Since smart cards are used in the authentication process, a lot of vulnerabilities can be triggered by an unauthenticated user, in code running with high privileges. During the author's research, bugs were discovered in OpenSC (EPass, PIV, OpenPGP, CAC, Cryptoflex …), YubiKey drivers, pam_p11, pam_pkc11, Apple's smartcard-services and others.

Additional information

Type lecture
Language English

More sessions

12/27/18
Security
hanno
Borg
Since a few months we have a new version of TLS, the most important encryption protocol on the Internet. From the vulnerabilities that created the need of a new TLS version to the challenges of deploying it due to broken devices this talk will give an overview of the new TLS 1.3.
12/27/18
Security
Frédéric Vachon
Clarke
UEFI rootkits have been researched and discussed heavily in the past few years, but sparse evidence has been presented of real campaigns actively trying to compromise systems at this level. Our talk will reveal such a campaign successfully executed by the Sednit group. We will detail the full infection chain showing how Sednit was able to install their custom UEFI module on key targets' computers. Additionally, we will provide an in-depth analysis of their UEFI module and the associated ...
12/27/18
Security
Mark Lechtik
Eliza
Meet SiliVaccine – North Korea's national Anti-Virus solution. SiliVaccine is deployed widely and exclusively in the DPRK, and has been continuously in development by dedicated government teams for over fifteen years. When we heard of this strange software, we were immediately driven to investigate it: it's not every day that you can catch a glimpse of the malware landscape inside the closed garden of the DPRK's intranet. In this talk, we will describe how we were able to obtain a rare copy of ...
12/27/18
Security
Borg
In this presentation we will take a look at how to break the most popular cryptocurrency hardware wallets. We will uncover architectural, physical, hardware, software and firmware vulnerabilities we found including issues that could allow a malicious attacker to gain access to the funds of the wallet. The attacks that we perform against the hardware wallets range from breaking the proprietary bootloader protection, to breaking the web interfaces used to interact with wallets, up to physical ...
12/27/18
Security
Martin Vigo
Dijkstra
Voicemail systems can be compromised by leveraging old weaknesses and top of current technology. The impact goes way beyond having your messages exposed.
12/27/18
Security
Adams
Die Venenerkennung ist eine der letzten Bastionen biometrischer Systeme, die sich bisher der Eroberung durch Hacker widersetzt hat. Dabei ist sie ein lohnendes Ziel, schützt sie doch Bankautomaten und Hochsicherheitsbereiche. In diesem Talk machen wir die Verteidigungsanlagen dem Erdboden gleich.
12/27/18
Security
Borg
We all know what FAX is, and for some strange reason most of us need to use it from time to time. Hard to believe its 2018, right? But can FAX be something more than a bureaucratic burden? Can it actually be a catastrophic security hole that may be used to compromise your entire network? Come watch our talk and find out …