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SMB Information Disclosure Vulnerability
From: Avert () avertlabs com
Date: 11 Jul 2006 22:06:04 -0000
_______________________________________________________________________________ McAfee, Inc. McAfee® Avert® Labs Security Advisory Public Release Date: 2006-07-11 SMB Information Disclosure Vulnerability CVE-2006-1315 _______________________________________________________________________________ Synopsis An information disclosure vulnerability exists in the Server service that could allow an attacker to retrieve fragments of memory from an affected host via the hosts SMB server. _______________________________________________________________________________ Vulnerable System or Application Microsoft Windows 2000 Microsoft Windows XP w/ Service Pack 1 Microsoft Windows XP w/ Service Pack 2 Microsoft Windows Server 2003 Microsoft Windows Server 2003 w/ Service Pack 1 _______________________________________________________________________________ Vulnerability Information This issue is caused by the Server protocol drivers failure to zero out memory before reusing it when constructing SMB response messages. An attacker could exploit this vulnerability by sending a specially crafted request that when processed would result in a response packet being sent that unintentionally contained portions of memory from the target host. Note that this vulnerability would not allow an attacker to execute code or to elevate their user rights directly. It could be used to produce useful information to try to further compromise the affected system. _______________________________________________________________________________ Resolution Microsoft has released a security bulletin and associated patch for this vulnerability: http://www.microsoft.com/technet/security/Bulletin/MS06-035.mspx _______________________________________________________________________________ Credits This vulnerability was discovered by Mike Price and Rafal Wojtczuk of McAfee Avert Labs. _______________________________________________________________________________ Legal Notice Copyright (C) 2006 McAfee, Inc. The information contained within this advisory is provided for the convenience of McAfees customers, and may be redistributed provided that no fee is charged for distribution and that the advisory is not modified in any way. McAfee makes no representations or warranties regarding the accuracy of the information referenced in this document, or the suitability of that information for your purposes. McAfee, Inc. and McAfee Avert Labs are registered Trademarks of McAfee, Inc. and/or its affiliated companies in the United States and/or other Countries. All other registered and unregistered trademarks in this document are the sole property of their respective owners.
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