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Category:   Application (Generic)  >   MythControl Vendors:   mythcontrol.sourceforge.net
MythControl Buffer Overflow in sendToMythTV() Lets Remote Bluetooth Users Execute Arbitrary Code
SecurityTracker Alert ID:  1017460
SecurityTracker URL:  http://securitytracker.com/id/1017460
CVE Reference:   CVE-2006-6860   (Links to External Site)
Updated:  May 20 2008
Original Entry Date:  Dec 31 2006
Impact:   Execution of arbitrary code via network, User access via network
Exploit Included:  Yes  
Version(s): 1.0
Description:   A vulnerability was reported in MythControl. A remote user can execute arbitrary code on the target system.

A remote user can send a specially crafted command via the Bluetooth interface to trigger a buffer overflow and execute arbitrary code on the target system. The code will run with the privileges of the target service.

The vulnerability resides in the sendToMythTV() function in 'MythControlServer.c'.

Michal Bucko (sapheal) reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   No solution was available at the time of this entry.
Vendor URL:  sourceforge.net/projects/mythcontrol/ (Links to External Site)
Cause:   Boundary error
Underlying OS:   Linux (Any)

Message History:   None.


 Source Message Contents

Date:  Sat, 30 Dec 2006 13:17:55 +0100
Subject:  MythControl (MythTV remote control) arbitrary code execution

Synopsis:  MythControl (MythTV remote control) arbitrary code execution
Product:   MythControl
Version:   <=1.0


Product:
=======

MythControl makes out of your Windows Mobile 5 Smartphone the 
best remote control ever for MythTV (or similar Media Center Products). 
It uses Bluetooth to communicate with your MythTV box and has a 
flexible, customizable user interface.
 
MythControlServer is a small server application for use with MythControl remote clients.
It uses the Bluez RFCOMM interface to listen for client connections and forwards the received
commands to either MythFrontend or shell. 


Issue:
======

A critical security vulnerability has been found in the product. It is
possible to execute arbitrary code.

Details:
========
In sendToMythTV the command that is to be sent might overflow
the sendStr string.


Affected Versions
=================

MythControl <= 1.0

Solution
=========

The sent command must be small enough to fit in the prepared 
buffer to send.


Exploitation
============

Exploitation might be conducted by using an overflowed command
variable value.




Kind regards,

Michal Bucko - sapheal

 
 


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