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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
  • Credit: Joseph Sheridan of Reaction Information Security

About ReactionIS

Reaction Information Security is a leading independent pen test consultancy specialising in delivering the highest quality security testing services including network pen testing and web application security testing. As a CESG CHECK Service Provider we are authorised to carry out penetration testing on classified government networks.

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_ROOTcf7_auto_fileshellopencommand) 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 could 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 website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the current page for any updates.

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