Microsoft Jet Database Engine Multiple Vulnerabilities
Secunia Advisory: SA14896
Release Date: 2005-04-12
Last Update: 2008-05-13
Popularity: 40,238 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

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 Storage Server 2003
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

Software:Microsoft Office 2000
Microsoft Office 2003 Professional Edition
Microsoft Office 2003 Small Business Edition
Microsoft Office 2003 Standard Edition
Microsoft Office 2003 Student and Teacher Edition
Microsoft Office 2007
Microsoft Office Word 2007
Microsoft Office XP
Microsoft Word 2000
Microsoft Word 2002
Microsoft Word 2003

Binary Analysis: BA478 :: Available for Credits

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CVE reference:CVE-2005-0944
CVE-2007-6026
CVE-2008-1092


Description:
Some vulnerabilities have been reported in Microsoft Jet Database Engine, which can be exploited by malicious people to compromise a user's system.

The vulnerabilities are caused due to a memory handling error and a boundary error in the Microsoft Jet Database Engine (msjet40.dll). This can be exploited to execute arbitrary code by e.g. tricking a user into opening a specially crafted Word document that automatically loads another file (e.g. a renamed ".mdb" file) in the same location as a JET database file.

NOTE: These vulnerabilities can also be exploited by tricking a user into opening a malicious ".mdb" file in Access. However, it should be noted that the ".mdb" file type is considered unsafe as it allows running arbitrary code when opened in Access. The gain from exploiting this vulnerability via Access is thus not greater than if a user is convinced into opening an ordinary ".mdb" file not exploiting any of these vulnerabilities.

The vulnerability only affects versions of msjet40.dll prior to 4.0.9505.0 and thus systems running Windows Server 2003 SP2, Windows Vista, and Windows Vista SP1 are not vulnerable.

Solution:
Apply patches.

Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=0de12d09-e675-4cf0-bc6f-e42eeb4784a1

Windows XP SP2:
http://www.microsoft.com/downloads/de...=3247433f-0aa9-49b8-9e40-c5463a95bcff

Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=4915ebc4-5e7b-493e-b8c4-321d40d9a701

Windows Server 2003 SP1:
http://www.microsoft.com/downloads/de...=86e3ed62-98f7-46ec-96ab-5e8c123b1288

Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=5dfc867b-74b7-4818-9fc2-d71e7c9d2e38

Windows Server 2003 with SP1 for Itanium-based systems:
http://www.microsoft.com/downloads/de...=3452119b-ba4c-4272-82ec-97396b2c2c3d

Provided and/or discovered by:
HexView and cocoruder.

Microsoft Word attack vector reported as a 0-day.

Changelog:
2005-10-04: Added link to US-CERT vulnerability note.
2008-03-24: Updated advisory based on additional information about 0-day Word attack vector. Added link to US-CERT.
2008-05-13: Updated "Solution" section.

Original Advisory:
MS08-028 (KB950749):
http://www.microsoft.com/technet/security/Bulletin/MS08-028.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/950627.mspx

Hexview:
http://www.hexview.com/docs/20050331-1.txt

cocoruder:
http://ruder.cdut.net/blogview.asp?logID=227

Other References:
US-CERT VU#176380:
http://www.kb.cert.org/vuls/id/176380

US-CERT VU#936529:
http://www.kb.cert.org/vuls/id/936529

Symantec:
http://www.symantec.com/enterprise/se...3/another_reason_why_microsoft_s.html


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