Bluetooth Low Energy (Smart, 4) is recently gaining more and more traction as one of the most common and rapidly growing IoT technologies. Unfortunatelly the prevalence of technology does not come with security. Alarming vulnerabilities in BLE smart locks, medical devices and banking tokens are revealed day by day. And yet, the knowledge on how to comprehensively assess them seems very uncommon. In this workshop you will get familiar with the basics of BLE security.
In this workshop you will get familiar with the basics of BLE security. We will work on a dedicated, readily available BLE hardware nRF devkit device. In a minutes you will turn into embedded developer and learn how to program your own BLE device yourself, using a free web interface and ready templates. Next, from attacker’s perspective, we will cover among others: sniffing, spoofing, MITM, replay and relay. Having enough time, we will play with a collection of vulneraBLE smart locks, sex toys and other devices.
Recently it seems our home/car/bicycle locks have started to follow a new trend: to include a BLE chip inside to make them “smart”. Unlike smart toothbrushes, socks or kettles, locks guard our safety, and their security should be much more of a concern. Vendors promise “military-grade level of security”, “128-bit encryption” and “cryptographic key exchange protocol” using “latest PKI technology”. However, recent disclosures of multiple vulnerabilities in smart locks clearly contradict the assurances on the actual security provided, and raise the question of whether these devices have passed any independent security assessments at all!