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BruCON 0x0B has ended
Friday, October 11 • 13:30 - 17:30
RFID Workshop FULL

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Limited Capacity full

During this workshop we will discuss RFID implementations such as access cards and badges. We will start some theory (about 20 minutes) describing different RFID based products and security solutions and their inherent problems. To demonstrate the workings of RFID badges and dongles, each student will receive a package containing an Arduino clone, an RFID reader/writer and several badges to play around with.

We will help the students set up their environment and show them different ways to read and write RFID badges (13,56 Mhz). Several exercises will be performed; each student will be able to try while we (myself and 1 colleague) help them out. For each we will of course also provide a sample solution. These exercises are interrupted with some extra theory before so each student realizes what he is trying to achieve.


We are going to show demo's using RFID shields (125KHz and 13.56 MHz) with an Arduino and/or Raspberry Pi as well as at least one ready-made product to clone 13.56MHz badges.

The exercises with the students will be on 13.56MHz only but we provide the hardware for them to use (they can keep this afterward). We will first show them how to read the cards and then break any protection / encryption present and write a new card that can be used. For some exercises we will look at Salto locks, some custom implementations we have encountered during red teaming, ISO standards 14443 (on which MIFARE is built) and 15693 (on which the HID products are built). We will try to stay away from theory since that would take us too long. We had the idea to focus on MIFARE since we encounter that the most but since we operate mostly in Belgium this might be different for an international audience, in that case, we are more than willing to change our focus.

Some of the exercises are:
- installing the development environment
- reading a badge
- writing data to a badge
- cloning a badge
- cracking a MiFare implementation

Speakers
avatar for Steven Wierckx

Steven Wierckx

Steven Wierckx is a software and security tester with 15 years of experience in programming, security testing, source code review, test automation, functional and technical analysis, development, and database design, Steven shares his passion for web application security through writing... Read More →
avatar for Alexander Hensels

Alexander Hensels

Alexander Hensels is a young Security Consultant with experience as a pentester for customers in the public and private sector. He performed external intrusion tests for hosting and managed service providers and has expertise in testing the security of IoT devices for an international... Read More →


Friday October 11, 2019 13:30 - 17:30
05. La Trappe Novotel

Attendees (31)