A Node.js package for BLE (Bluetooth Low Energy) security assessment using Man-in-the-Middle and other attacks.
npm install gattacker
Running both components Set up variables in config.env:
- NOBLE_HCI_DEVICE_ID : noble ("central", ws-slave) device
- BLENO_HCI_DEVICE_ID : bleno ("peripheral", advertise) device
- WS_SLAVE : IP address of ws-slave box
- DEVICES_PATH : path to store json files
Start "central" device
Connects to targeted peripheral and acts as websocket server.
sudo node ws-slave
DEBUG=ws-slave sudo node ws-slave
Scan for advertisements
Without parameters scans for broadcasted advertisements, and records them as json files (.adv.json) in DEVICES_PATH
Explore services and characteristics
Explore services and characteristics of chosen peripheral. Saves the explored service structure in json file (.srv.json) in DEVICES_PATH.
node scan <peripheral>
Hook configuration (option)
For active request/response tampering configure hook functions for characteristic in device's json services file.
dynamic: connect to original device
static: do not connect to original device, run the tampering function locally
It will try to invoke the specified function from hookFunctions, include your own. A few examples provided in hookFunctions subdir.
staticValue - static value
Start "peripheral" device
It connects via websocket to ws-slave in order to forward requests to original device. Static run (-s) sets services locally, does not connect to ws-slave. You have to configure the hooks properly.
node advertise -a <advertisement_json_file> [ -s <services_json_file> ]
MAC address cloning
For many applications it is necessary to clone MAC address of original device. A helper tool bdaddr from Bluez is provided in helpers/bdaddr.
./mac_adv -a <advertisement_json_file> [ -s <services_json_file> ]
Turn off, cross fingers, try again ;)
hciconfig <hci_interface> reset
Running ws-slave and advertise on the same box
With this configuration you may experience various problems.
Try switching NOBLE_HCI_INTERFACE and BLENO_HCI_INTERFACE
hcidump -x -t <hci_interface>
FAQ, more information
More information: www.gattack.io