/-----------------------------------------------------------------------------------\ | Toshiba ConfigFree CF7 File Stack Buffer Overflow (Comment Field) | \-----------------------------------------------------------------------------------/ 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-cf7-bof-comment.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 ‘comment’ 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-cf7-bof-comment.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.