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Message-ID: <463224C1.2010804@idefense.com> Date: Fri, 27 Apr 2007 12:28:49 -0400 From: iDefense Labs <labs-no-reply@...fense.com> To: vulnwatch@...nwatch.org, full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com Subject: iDefense Security Advisory 04.26.07: Symantec Norton Ghost 10 Service Manager Buffer Overflow Vulnerability Symantec Norton Ghost 10 Service Manager Buffer Overflow Vulnerability iDefense Security Advisory 04.26.07 http://labs.idefense.com/intelligence/vulnerabilities/ Apr 26, 2007 I. BACKGROUND Symantec Norton Ghost is a backup and recovery application designed to allow users to completely restore their systems to previous snapshots. More information can be found from the vendors site at the following URL. http://www.symantec.com/home_homeoffice/products/overview.jsp?pcid=br&pvid=ghost10 II. DESCRIPTION Local exploitation of a buffer overflow vulnerability in Norton Ghost could allow local attackers to run code as the SYSTEM level user. Norton Ghost Service Manager is a Local Server COM object that allows privileged Ghost Backup Operators the ability to take and restore Ghost images of the system. A function within the Service Manager can be used to trigger a buffer overflow by supplying an overly long string. III. ANALYSIS Exploitation allows local attackers to execute code as the SYSTEM level user. In order to be able to exploit this vulnerability, attackers must have tasking privileges for the Norton Ghost Service Manager. IV. DETECTION iDefense verified the existence of this vulnerability on Norton Ghost 10.0. Other versions may be vulnerable as well. V. WORKAROUND iDefense recommends limiting which users have permission to interact with the Ghost Service Manager. Ghost provides a means to grant specific users access to these features. VI. VENDOR RESPONSE Symantec has addressed this vulnerability with a software update. The update is available via their LiveUpdate channels. For more information, consult their advisory at the following URL. http://www.symantec.com/avcenter/security/Content/2007.04.26.html VII. CVE INFORMATION A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not been assigned yet. VIII. DISCLOSURE TIMELINE 01/02/2007 Initial vendor notification 01/09/2007 Initial vendor response 04/26/2007 Coordinated public disclosure IX. CREDIT This vulnerability was reported to iDefense by Pravus. Get paid for vulnerability research http://labs.idefense.com/methodology/vulnerability/vcp.php Free tools, research and upcoming events http://labs.idefense.com/ X. LEGAL NOTICES Copyright © 2007 iDefense, Inc. Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customerservice@...fense.com for permission. Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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