this post was submitted on 08 Mar 2025
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Undocumented Commands Found In Bluetooth Chip Manufactured in China Used By a Billion Devices. (www.tarlogic.com)
submitted 1 day ago* (last edited 23 hours ago) by Tea to c/[email protected]
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Source Link Privacy.Privacy test result

https://themarkup.org/blacklight?url=https%3A%2F%2Fwww.tarlogic.com%2Fnews%2Fbackdoor-esp32-chip-infect-ot-devices%2F&device=mobile&location=us-ca&force=false

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.

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[–] [email protected] -5 points 1 day ago* (last edited 1 day ago)

The ESP32 chip, developed by Espressif Systems, is widely used in various IoT (Internet of Things), embedded systems, and consumer electronics due to its low power consumption, built-in Wi-Fi & Bluetooth, and high processing capability.

Devices That Use the ESP32 Chip

  1. Development Boards & Microcontrollers

ESP32 DevKit series (official Espressif boards)

M5Stack and M5Stick series

Adafruit HUZZAH32

SparkFun ESP32 Thing

LilyGO T-Series (T-Display, T-SIM, T-Watch, etc.)

WEMOS Lolin D32/D32 Pro

  1. Smart Home & IoT Devices

Sonoff Smart Switches and Plugs (e.g., Sonoff Mini R3, Sonoff S31)

Shelly Smart Relays (e.g., Shelly 1, Shelly 2.5)

Tuya-Based Smart Devices (many smart home products use Tuya firmware on ESP32)

Air quality monitors (e.g., AirGradient open-source air sensors)

IoT Sensor Hubs (various DIY and commercial solutions)

  1. Wearables & Portable Devices

TTGO T-Watch (ESP32-based smartwatch)

Heltec WiFi Kit Series (LoRa-enabled IoT devices)

Fitness trackers (some DIY and prototype models)

  1. Robotics & DIY Electronics

ESP32-CAM (ESP32-based camera module)

DIY drones & robots (used in hobbyist and educational robotics)

3D Printer controllers (e.g., ESP32-based Klipper controllers)

  1. Industrial & Commercial Products

ESP32-based vending machines (wireless payment systems)

Smart irrigation controllers

Energy monitoring devices (e.g., OpenEnergyMonitor)

Smart locks & security systems

  1. Audio & Multimedia Devices

ESP32-based web radios

DIY Bluetooth speakers

Smart light controllers with voice assistants

Why Is ESP32 Popular?

✔ Low-cost & powerful (dual-core, Wi-Fi, Bluetooth) ✔ Great for DIY & commercial IoT applications ✔ Strong developer community & open-source support ✔ Compatible with Arduino, MicroPython, ESP-IDF, etc.