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Microsoft Visual Studio User Control Load Event Vulnerability

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Release Date:  2006-01-11    Last Update:  2006-08-04    Views:  20,006

Secunia Advisory SA18409

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


priestmaster has discovered a vulnerability in Microsoft Visual Studio, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a design error that allows program code within the "Load" event of a user-defined control to be automatically executed when a project containing a form that uses the malicious control is opened. This can be exploited to execute arbitrary program code.

Successful exploitation requires that the user is e.g. tricked into opening a Solution file in a malicious Visual Studio project.

The vulnerability has been confirmed in Microsoft Visual C# 2005 Express Edition. Other versions may also be affected.

Note: It has also possible to modify Visual Studio's ".dsp" project files to include arbitrary post-build commands that are executed when the project is built.


Solution:
Do not open or build Visual Studio project files from untrusted sources.

Provided and/or discovered by:
priestmaster

Additional information by:
Donnie Werner, Exploitlabs

Original Advisory:
Microsoft KB841189:
http://support.microsoft.com/kb/841189

Team Priestmasters Research Facility:
http://www.priestmaster.org/projects/advisories/vsadvisorie.txt

Exploitlabs:
http://exploitlabs.com/files/advisories/EXPL-A-2006-002-msvc-featurebug.txt

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 Visual Studio User Control Load Event Vulnerability

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