Repost of Microsoft SMB Information Disclosure Vulnerability CVE-2006-1315

[<David_Marcus () McAfee com>]

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McAfee, Inc.
McAfee(r) Avert(r) Labs Security Advisory
Public Release Date: 2006-07-11

SMB Information Disclosure Vulnerability

CVE-2006-1315
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*       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 host's SMB server.
 
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*       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

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*       Vulnerability Information

This issue is caused by the Server protocol driver's 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.
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*       Resolution

Microsoft has released a security bulletin and associated patch for this
vulnerability:
http://www.microsoft.com/technet/security/Bulletin/MS06-035.mspx 

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*       Credits

This vulnerability was discovered by Mike Price and Rafal Wojtczuk of
McAfee Avert Labs. 
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*       Legal Notice

Copyright (C) 2006 McAfee, Inc.
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Best regards,

Dave Marcus, B.A., CCNA, MCSE
Security Research and Communications Manager
McAfee(r) Avert(r) Labs
(443) 321-3771 Office
(443) 668-0048 Mobile
McAfee Threat Center
<http://www.mcafee.com/us/threat_center/default.asp> 
McAfee Avert Labs Research Blog <http://www.avertlabs.com/research/blog>



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