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Microsoft Windows Two Vulnerabilities
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Secunia Advisory:
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SA21417
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Release Date:
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2006-08-08
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Last Update:
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2006-08-14
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Popularity:
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11,560 views
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Critical:
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Highly critical
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Impact:
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Privilege escalation
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional
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| CVE reference: | CVE-2006-3443
CVE-2006-3648
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Description:
Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges and by malicious people to compromise a vulnerable system.
1) An error in Winlogon when searching for DLL files when applications are started can be exploited by a malicious, local user to gain escalated privileges by placing a malicious DLL file in the user directory.
NOTE: Only Windows 2000 is affected by default as other OS versions have "SafeDllSearchMode" set to "1" by default.
2) An error in the exception handling management when multiple applications are resident in memory can be exploited to execute arbitrary code by tricking a user into visiting a malicious website.
Solution:
Apply patches.
Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=83e0c6fb-a542-463a-88fd-dc388605a8ae
Windows XP SP1/SP2:
http://www.microsoft.com/downloads/de...=71e96afc-bc4d-4666-998b-49857007e539
Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=a6fe5b95-11d1-42cd-995c-c8cef8a27aef
Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=7d0f888b-df35-40df-baff-0bae2b921aef
Windows Server 2003 for Itanium-based systems (optionally with SP1):
http://www.microsoft.com/downloads/de...=df365b0b-f97f-4df1-9105-d81b68a110eb
Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=3f750ad5-5bfb-4421-a316-ae66f0557eac
Provided and/or discovered by:
1) The vendor credits Reed Arvin, Canaudit Inc.
2) The vendor credits Matt Miller, Leviathan Security Group working with Ken Johnson.
Changelog:
2006-08-09: Added link to US-CERT.
2006-08-11: Added link to US-CERT.
2006-08-14: Updated CVE reference.
Original Advisory:
MS06-051 (KB917422):
http://www.microsoft.com/technet/security/Bulletin/MS06-051.mspx
Other References:
US-CERT VU#337244:
http://www.kb.cert.org/vuls/id/337244
US-CERT VU#411516:
http://www.kb.cert.org/vuls/id/411516
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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