Difference between revisions of "Bluetooth LE hacking"

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Line 67: Line 67:
Make sure that the machines can reach each other over the network. It is also recommend to turn  
Make sure that the machines can reach each other over the network. It is also recommend to turn  
of the firewall.
of the firewall.
sudo apt-get install -y nodejs npm bluetooth bluez libbluetooth-dev libudev-dev
sudo npm install -g btlejuice
  sudo service ufw stop
  sudo service ufw stop
  sudo ufw disable
  sudo ufw disable
Line 73: Line 75:
The second machine is the core unit and there you enter:
The second machine is the core unit and there you enter:
  sudo btlejuice -u <ip proxy> -w
  sudo btlejuice -u <ip proxy> -w
=== Gatttool ===
=== Gatttool ===



Revision as of 20:32, 6 November 2021

Summary

This page describes the basics steps of how a BLE device can be attacked.

Requirements

  • Operating system: Ubuntu 21.10, Ubuntu 18.04
  • Elvis lab IoT devices

In order to complete these steps, you must have followed before.

Description

First install ubertooth one and all libraries. A full documentation is available on: https://ubertooth.readthedocs.io/en/latest/build_guide.html

Check if ubertooth one is recognized:

lsusb

Bus 001 Device 003: ID 1d50:6002 OpenMoko, Inc. Ubertooth One

sudo apt-get install -y ubertooth cmake libusb-1.0-0-dev make gcc g++ libbluetooth-dev pkg-config python3-numpy python3-qtpy

Install libbtbb

wget https://github.com/greatscottgadgets/libbtbb/archive/2020-12-R1.tar.gz -O libbtbb-2020-12-R1.tar.gz
tar -xf libbtbb-2020-12-R1.tar.gz
cd libbtbb-2020-12-R1
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig

Install Ubertooth Tools

wget https://github.com/greatscottgadgets/ubertooth/releases/download/2020-12-R1/ubertooth-2020-12-R1.tar.xz
tar -xf ubertooth-2020-12-R1.tar.xz
cd ubertooth-2020-12-R1/host
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig

Ubertooth One Firmware update

cd firmware
sudo apt-get install -y gcc-arm-none-eabi
make clean all
make
cd bluetooth_rxtx
ubertooth-dfu -d bluetooth_rxtx.dfu -r

To show the Firmware use the command

ubertooth-util -v

Firmware version: git-7b656c1 (API:1.07)

Wireshark sniffing

The ubertooth one device is used for sniffing the bluetooth packets and wireshark is displaying the packets.

mkpipe /tmp/pipe
sudo wireshark -k -i /tmp/pipe &
sudo ubertooth-btle -f -c /tmp/pipe

MITM attack

To find out what GAT messages between a BLE device and a smartphone are being exchanged, I used a MITM attack. For this the tool btlejuice was used.

Create 2 virtual machines with Ubuntu 18.04 and make sure that a bluetooth adapter is available on both machines. Make sure that the machines can reach each other over the network. It is also recommend to turn of the firewall.

sudo apt-get install -y nodejs npm bluetooth bluez libbluetooth-dev libudev-dev
sudo npm install -g btlejuice
sudo service ufw stop
sudo ufw disable

One machine acts as proxy. On this machine enter the command:

sudo btlejuice-proxy

The second machine is the core unit and there you enter:

sudo btlejuice -u <ip proxy> -w

Gatttool

Used Hardware

All hardware is used from the Elvis Lab.

  • Ubertooth One

Courses

References