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Undocumented Commands Found In Bluetooth Chip Manufactured in China Used By a Billion Devices.
(www.tarlogic.com)
Source Link Privacy.
Tarlogic Security has detected a backdoor in the ESP32, a microcontroller that enables WiFi and Bluetooth connection and is present in millions of mass-market IoT devices. Exploitation of this backdoor would allow hostile actors to conduct impersonation attacks and permanently infect sensitive devices such as mobile phones, computers, smart locks or medical equipment by bypassing code audit controls.
Update: The ESP32 "backdoor" that wasn't.
The Tasmota firmware documentation has a decent list, but it's limited to devices that are known to be flash-able so you can install custom firmware on them. https://templates.blakadder.com/
Thanks, that's a pretty short list - as you said it's limited.
If it affects all ESP32s, the list is infinitely longer
The homepage just has recently added devices. Use the menu to browse by device type.
Wow. Ok, some more brand name devices are starting to be named. Still mostly consumer IOT like bulbs and smart plugs. Thanks for the update. I can see one device we own.