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Insecure Library Loading
Moderately critical

Microsoft Windows Shell and Web View Three Vulnerabilities

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Description


Three vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious people to compromise a user's system.

1) A boundary error exists in CSRSS when handling the properties associated a ".lnk" (shortcut) file of a console application. This can be exploited to cause a buffer overflow and allows arbitrary code execution when the user opens a specially-crafted ".lnk" file with an overly long font name property.

2) A boundary error exists in Windows Explorer when handling the properties associated with a ".lnk" file of a console application. This can be exploited to cause a buffer overflow via a specially-crafted ".lnk" file with an overly long font name property.

Successful exploitation allows arbitrary code with the privileges of the user viewing the properties of the ".lnk" file.

3) An error exists in the way Windows Explorer sanitises HTML characters embedded in certain file fields when allowing a file to be previewed in the Web View. This can be exploited in script injection attacks to execute arbitrary script code with privileges of the user viewing the malicious file.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
The vendor credits the following:
1-2) Cesar Cerrudo of Argeniss
3) Brett Moore of security-assessment.com

Original Advisory:
MS05-049 (KB900725):
http://www.microsoft.com/technet/security/Bulletin/MS05-049.mspx

Argeniss:
http://www.argeniss.com/research/MSBugPaper.pdf

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 Windows Shell and Web View Three Vulnerabilities

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