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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Windows Media Encoder May Load DLLs Unsafely and Remotely Execute Arbitrary Code
SecurityTracker Alert ID:  1024876
SecurityTracker URL:  http://securitytracker.com/id/1024876
CVE Reference:   CVE-2010-3965   (Links to External Site)
Date:  Dec 14 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): XP SP3, 2003 SP2, Vista SP2, 2008 SP2; and prior service packs; (Windows Media Encoder 9)
Description:   A vulnerability was reported in Windows Media Encoder. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted DLL file on a remote share (e.g., WebDAV, SMB share). When the target application is loaded by the target user and the target user opens a Windows Media Profile (.prx) file on that remote share, the application may load the remote user's DLL instead of the intended DLL and execute arbitrary code. The code will run with the privileges of the target user.

This type of exploit is also known as "binary planting" or "DLL preloading".

Impact:   A remote user can may be able to cause a target application to execute arbitrary code on the target user's system.
Solution:   The vendor has issued the following fixes:

Windows XP Service Pack 3, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=EF0ADA2C-965F-438F-A1D3-BD45DB8460C1

Windows XP Professional x64 Edition Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=DC777E61-E1E3-43BF-A84D-22C4A69C135D

Windows Server 2003 Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=EF0ADA2C-965F-438F-A1D3-BD45DB8460C1

Windows Server 2003 x64 Edition Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=DC777E61-E1E3-43BF-A84D-22C4A69C135D

Windows Vista Service Pack 1, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=E8A57950-43CD-486F-BD97-70B0AD360A0B

Windows Vista Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=E8A57950-43CD-486F-BD97-70B0AD360A0B

Windows Vista x64 Edition Service Pack 1, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=f98c3b96-acb5-49f1-be42-3dd44d316408

Windows Vista x64 Edition Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=f98c3b96-acb5-49f1-be42-3dd44d316408

Windows Server 2008 for 32-bit Systems, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=A4EA028F-EDFC-4237-8325-7ECE11FCF437

Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=A4EA028F-EDFC-4237-8325-7ECE11FCF437

Windows Server 2008 for x64-based Systems, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=f468d2b5-f02c-4691-9fb5-a7f69752f126

Windows Server 2008 for x64-based Systems Service Pack 2, Windows Media Encoder 9 x86:

http://www.microsoft.com/downloads/details.aspx?familyid=f468d2b5-f02c-4691-9fb5-a7f69752f126

A restart may be required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms10-094.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms10-094.mspx (Links to External Site)
Cause:   Access control error

Message History:   None.


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