Hacking access-control systems with an old-school sniffer: a creative way to jump the fence. 🚪🔐👃💳🔓
Security researcher Julia Zdunczyk, in her presentation about hacking access-control systems, reveals some interesting known attacks, like frying the lock with EMP, and new creative ways to bypass card readers.
The proposal is simple: if you have physical access to the card reader, and you know that the protocol it uses to communicate with the controller is Wiegand, which is legacy but still super popular, you can:
Install a sniffer on the reader side, which is exposed outside the perimeter
Wait until someone with a legit card enters
Replay the message from the sniffer to the controller and open the door without a card, even remotely.
Smart :)
Enjoy the presentation - I really like the vibe it gives and the motivation to move forward. And please share it if you feel the same.
More details:
Behind Closed Doors - Bypassing RFID Readers & Physical Access Controls [Youtube]: https://lnkd.in/dScrMN2C
