full-disclosure - Toshiba ConfigFree CF7 File Stack Buffer Overflow (ProfileName)

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Message-ID: <05e401cd9807$766b02d0$63410870$@reactionis.com>
Date: Fri, 21 Sep 2012 15:43:27 +0100
From: "Joseph Sheridan" <joe@...ctionis.com>
To: "'full-disclosure'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq'" <bugtraq@...urityfocus.com>, <secalert@...urityreason.com>,
	<bugs@...uritytracker.com>, "'vuln'" <vuln@...unia.com>,
	<vuln@...urity.nnov.ru>, <news@...uriteam.com>, <moderators@...db.org>,
	<submissions@...ketstormsecurity.org>, <submit@...ecurity.com>
Subject: Toshiba ConfigFree CF7 File Stack Buffer Overflow
	(ProfileName)

/--------------------------------------------------------------------------------\
| 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@...ctionis.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.

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