Change your bluetooth device mac-address

If you can’t get bdaddr installed to your Linux distribution BackTrack 4 has bdaddr on /pentest/bluetooth/bluesmash/tools directory. I installed bdaddr to my eeepc (running ubuntu) but I couldn’t change any bt mac with that but Dell Latitude D430 and Backtrack worked like a dream.

00:50:F2:7E:2F:9B My bluetooth dongle (old dongle from Microsoft keyboard/mouse) 00:01:E3:64:DD:9B Siemens Gigaset SL2 Professional Dect phone

First I scanned bluetooth devices around me:

root@bt:/pentest/bluetooth/bluesmash/tools# hcitool scan
Scanning … 
00:01:E3:64:DD:9B ScriptKiddie

00:01:E3:64:DD:9B aka SciptKiddie is my Siemens Gigaset SL Professional DECT phone.

Then I run bdaddr to see does it find my bt dongle:

root@bt:/pentest/bluetooth/bluesmash/tools# ./bdaddr
Manufacturer: Cambridge Silicon Radio (10)
Device address: 00:50:F2:7E:2F:9B

Yep. Seems to work ok. Now I change to my bluetooth dongle to same as my dect phone:

root@bt:/pentest/bluetooth/bluesmash/tools# ./bdaddr -i hci0 00:01:E3:64:DD:9B
Manufacturer: Cambridge Silicon Radio (10)
Device address: 00:50:F2:7E:2F:9B
New BD address: 00:01:E3:64:DD:9B

Address changed – Reset device now

After that you have to unplug and plug in your bluetooth device. after unplug/plug we can check our mac-address:

root@bt:/pentest/bluetooth/bluesmash/tools# ./bdaddr
Manufacturer: Cambridge Silicon Radio (10)
Device address: 00:01:E3:64:DD:9B
root@bt:/pentest/bluetooth/bluesmash/tools# hcitool dev
Devices:
hci0 00:01:E3:64:DD:9

Yep. It’s changed to same as my dect phone. But I still wanted to test will it scan other devices

root@bt:/pentest/bluetooth/bluesmash/tools# hcitool scan
Scanning … 00:01:E3:64:DD:9B ScriptKiddie
root@bt:/pentest/bluetooth/bluesmash/tools#

Yep. It still seems to work perfectly.