DEF CON 26 CAR HACKING VILLAGE — Phil Lapczynski — Flash Bootloaders Exposing Automotive ECU updates

Unified Diagnostic Services (UDS) provides a powerful interface into vehicle diagnostics. OEMs use these services to update firmware, manipulate calibration data, send and receive information from vehicle ECUs, and now more recently for over the air updates. This talk pulls back the curtain on automotive bootloaders and how poor security design or implementation choices can be used by attackers to exfiltrate firmware or even gain persistent code execution.