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2003: 2,700 advisories published
2004: 3,100 advisories published
2005: 4,600 advisories published
2006: 5,300 advisories published

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TITLE:
Windows Vista Kernel Legacy Reply Path Validation Privilege
Escalation

SECUNIA ADVISORY ID:
SA28015

VERIFY ADVISORY:
http://secunia.com/advisories/28015/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

OPERATING SYSTEM:
Microsoft Windows Vista
http://secunia.com/product/13223/

DESCRIPTION:
A vulnerability has been reported in Microsoft Windows Vista, which
can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to an error in the way the Windows
Advanced Local Procedure Call (ALPC) validates certain conditions of
legacy reply paths. This can be exploited to execute arbitrary code
with kernel privileges.

SOLUTION:
Apply patches.

Windows Vista:
http://www.microsoft.com/downloads/details.aspx?familyid=9787619f-1297-411e-8b9c-3ad3e6a99797

Windows Vista x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyID=5f382050-8df6-43aa-82e9-8fad5ff8ecec

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Thomas Garnier of SkyRecon.

ORIGINAL ADVISORY:
MS07-066 (KB943078):
http://www.microsoft.com/technet/security/Bulletin/MS07-066.mspx

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About:
This Advisory was delivered by Secunia as a free service to help
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Secunia NEVER sends attached files with advisories.
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