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Toshiba ConfigFree CF7 ProfileName Overflow

Toshiba ConfigFree CF7 ProfileName Overflow
Posted Sep 22, 2012
Authored by Joseph Sheridan | Site reactionpenetrationtesting.co.uk

There is a stack buffer overflow vulnerability in the Toshiba ConfigFree CF7 file format used on Toshiba laptops. An attacker could execute arbitrary code by enticing a Toshiba laptop user to download and execute a malicious CF7 file if they manipulate the ProfileName.

tags | advisory, overflow, arbitrary
advisories | CVE-2012-4980
MD5 | 820f5132e1bdda5c557f310f9f84aa4c

Toshiba ConfigFree CF7 ProfileName Overflow

Change Mirror Download
/--------------------------------------------------------------------------------\
| Toshiba ConfigFree CF7 File Stack Buffer Overflow (ProfileName) |
\--------------------------------------------------------------------------------/


Summary
=======

There is a stack buffer overflow vulnerability in the Toshiba ConfigFree
CF7 file format used on Toshiba laptops. An attacker could execute arbitrary
code by enticing a Toshiba laptop user to download and execute a malicious
CF7 file.


CVE number: CVE-2012-4980
Impact: High
Vendor homepage: http://www.toshiba.co.uk/
Vendor notified: 13/07/2012
Vendor response: Toshiba does not recognise this as a security vulnerability
and therefore will not be releasing a fix.
Credit: Joseph Sheridan of ReactionIS (http://www.reactionis.co.uk)

This advisory is posted at:

http://www.reactionpenetrationtesting.co.uk/configfree-bof-profilename.html


Affected Products
======== ========

Confirmed in latest Configfree version 8.0.38 on Windows 7 on a Toshiba
Satellite R850. Other versions may also be affected.


Details
=======

The ‘profileName’ field of the cf7 file is vulnerable to a stack-based buffer overflow.

ConfigFree is the registered file handler for the cf7 filetype (CFProfile.exe
at HKEY_CLASSES_ROOT\cf7_auto_file\shell\open\command) so if a user could
be convinced to download a malicious cf7 file and execute it, the stack
buffer overflow vulnerability could be exploited to execute arbitrary code on the
victim's machine.


Impact
======

If a user could be convinced to download a malicious cf7 file and execute it,
the stack buffer overflow vulnerability could be exploited to execute arbitrary
code on the victim's machine.


Solution
========

As no fix is available, concerned users can remove this utility from their machine.


Distribution
============

In addition to posting on the website, a text version of this notice has been
posted to the following e-mail and Usenet news recipients.

* bugtraq () securityfocus com
* full-disclosure () lists grok org uk

Future updates of this advisory, if any, will be placed on the ReactionIS
corporate website, but may or may not be actively announced on mailing lists
or newsgroups. Users concerned about this problem are encouraged to check the
URL below for any updates:

http://www.reactionpenetrationtesting.co.uk/configfree-bof-profilename.html

==============================================================================

Reaction Information Security
Lombard House Business Centre,
Suite 117,
12-17 Upper Bridge Street,
Canterbury, Kent, CT1 2NF

Phone: +44 (0)1227 785050
Email: research () reactionis {dot} co {dot} uk
Web: http://www.reactionpenetrationtesting.co.uk


Joseph Sheridan
Director
CHECK Team Leader, CREST Infrastructure, CREST Application, CISSP
Tel: 07812052515
Web: www.reactionis.co.uk
Email: joe@reactionis.co.uk

Reaction Information Security Limited.
Registered in England No: 6929383
Registered Office: 1, The Mews, 69 New Dover Road, Canterbury, CT1 3DZ

This email and any files transmitted with it are confidential and are intended solely for the use of the individual to whom they are addressed. If you are not the intended recipient please notify the sender. Any unauthorised dissemination or copying of this email or its attachments and any use or disclosure of any information contained in them, is strictly prohibited.

 Please consider the environment before printing this email

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