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Insecure Library Loading
Highly critical

Microsoft Jet Database Engine Multiple Vulnerabilities

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Release Date:  2005-04-12    Last Update:  2008-05-13    Views:  53,378

Secunia Advisory SA14896

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

CVE Reference(s):

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.

Further details available to Secunia VIM customers

Provided and/or discovered by:
HexView and cocoruder.

Microsoft Word attack vector reported as a 0-day.

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

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Jet Database Engine Multiple Vulnerabilities

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