SMB Information Disclosure Vulnerability
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McAfee, Inc.
McAfee® Avert® 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
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