Soldier of FORTRAN (@mainframed767.bsky.social)

The ESP32 "backdoor" that wasn't | Dark Mentor LLC 4 day class covering the full Bluetooth Low Energy (BLE) protocol stack from the bottom (PHY) up to the top (GATT). The core of the class is built around playing with a game application on an Android phone, talking via Bluetooth to an IoT-type piece of hardware, and analyzing the communication between them. The 4th day is focused on assessing a cutomized Ultra-Vulnerable Peripheral firmware, running on Zephyr RTOS, which has had vulnerabilities introduced into it which are representative of vulnerabilities found in the past across many other platforms. https://darkmentor.com/blog/esp32_non-backdoor/