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Reverse engineering IoT Devices
The document discusses reverse engineering IoT devices like a Syska smart light bulb using free and open source software. It explains that the light bulb communicates over Bluetooth Low Energy using GATT profiles and characteristics that can be analyzed with tools like Wireshark. By analyzing the packet values, which represent RGB color values between 0-255, the presenter was able to determine the light bulb's communication protocol and develop code to control the bulb.
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Reverse engineering IoT Devices
- 1. REVERSE ENGINEERING IOTDEVICES USING FOSS @iAyanPahwa/iayanpahwa
- 2. @iAyanPahwa/iayanpahwa ‣ Embedded SoftwareEngineer by profession ‣ FPV Drone racer ‣ Content creator and Tech blogger https://iayanpahwa.github.io ‣ Intrigued by everything related to IoT, 3D printing, AI, Wearable electronics, Cyber forensics, Automation, Programming etc. KNOW THE PRESENTER
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- 9. BLUETOOTH BT - BluetoothClassic (< 4.0) BLE - Bluetooth Low Energy (> = 4.0) GAP - Generic Access Profile GATT- Generic Attribute Classes - Definition and inheritance Characteristics - User defined functionalities
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- 20. WHAT TO DONOW?
- 21. WHAT TO DONOW?
- 22. WHAT TO DONOW?
- 23. WHAT TO DONOW? btsnoop_hci.log
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- 26. PACKET ANALYSIS Value: 00100006000a03000101000025ff00000000 Value:00110006000a030001010049ff0000000000 Value: 00120006000a0300010100ff000000000000 Value: 00130006000a030001010049ff0000000000 Value: 00140006000a03000101000025ff00000000
- 27. PACKET ANALYSIS Value: 0010 000 6000a0300010100 0025ff 00000000 Value: 00 11 000 6000a0300010100 49ff00 00000000 Value: 00 12 000 6000a0300010100 ff0000 00000000 Value: 00 13 000 6000a0300010100 49ff00 00000000 Value: 00 14 000 6000a0300010100 0025ff 00000000
- 28. PACKET ANALYSIS RED GREENBLUE 2^8 = 256 (0 to 255) or (0x00 to 0xff)
- 29. PACKET ANALYSIS Value: 0025 ff Value: 49 ff 00 Value: ff 00 00 Value: 49 ff 00 Value: 00 25 ff X
- 30. PACKET ANALYSIS Value: 0025 ff Value: 49 ff 00 Value: ff 00 00 Value: 49 ff 00 Value: 00 25 ff X
- 32. CMON IT’S JUSTA BULB
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