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TITLE:
Microsoft Windows Web Client Service Vulnerability

SECUNIA ADVISORY ID:
SA15696

VERIFY ADVISORY:
http://secunia.com/advisories/15696/

CRITICAL:
Moderately critical

IMPACT:
Privilege escalation, System access

WHERE:
>From remote

OPERATING SYSTEM:
Microsoft Windows Server 2003 Datacenter Edition
http://secunia.com/product/1175/
Microsoft Windows Server 2003 Enterprise Edition
http://secunia.com/product/1174/
Microsoft Windows Server 2003 Standard Edition
http://secunia.com/product/1173/
Microsoft Windows Server 2003 Web Edition
http://secunia.com/product/1176/
Microsoft Windows XP Home Edition
http://secunia.com/product/16/
Microsoft Windows XP Professional
http://secunia.com/product/22/

DESCRIPTION:
Mark Litchfield has reported a vulnerability in Microsoft Windows,
which can be exploited by malicious, local users to gain escalated
privileges and by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the handling
of messages. This can be exploited by tricking a user into connecting
to a malicious WebDAV service and sending specially crafted messages
via WebDAV to the Web Client Service.

SOLUTION:
Apply patches.

Microsoft Windows XP (requires Service Pack 1):
http://www.microsoft.com/downloads/details.aspx?FamilyId=91488DDD-1D7E-4277-916A-D5F2EE0B6327

Microsoft Windows XP 64-Bit Edition (requires Service Pack 1)
(Itanium):
http://www.microsoft.com/downloads/details.aspx?FamilyId=1DC37A74-BF1E-4AFE-8198-D5CA460A3872

Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium):
http://www.microsoft.com/downloads/details.aspx?FamilyId=2024382A-14A9-4231-8835-E2720C562190

Microsoft Windows Server 2003:
http://www.microsoft.com/downloads/details.aspx?FamilyId=B7097610-8AAB-4A2F-94C9-18D32E1C297C

Microsoft Windows Server 2003 (Itanium):
http://www.microsoft.com/downloads/details.aspx?FamilyId=2024382A-14A9-4231-8835-E2720C562190

PROVIDED AND/OR DISCOVERED BY:
Mark Litchfield of Next Generation Security Software.

ORIGINAL ADVISORY:
MS05-028 (KB896426):
http://www.microsoft.com/technet/security/Bulletin/MS05-028.mspx

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


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