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Category:   Application (Multimedia)  >   Windows Media Services Vendors:   Microsoft
Windows Media Services ActiveX Control Buffer Overflow in CallHTMLHelp() Function Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020733
SecurityTracker URL:  http://securitytracker.com/id/1020733
CVE Reference:   CVE-2008-5232   (Links to External Site)
Updated:  Aug 20 2009
Original Entry Date:  Aug 25 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in Windows Media Services. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted HTML that, when loaded by the target user, will invoke a Windows Media Services ActiveX control and trigger a buffer overflow to execute arbitrary code on the target system. The code will run with the privileges of the target user.

A specially crafted call to CallHTMLHelp() can trigger the overflow in 'nskey.dll'.

The CLSID of the vulnerable control is: 2646205B-878C-11D1-B07C-0000C040BCDB

Jeremy Brown reported this vulnerability.

The original advisory is available at:

http://packetstormsecurity.org/0808-exploits/wms-overflow.txt

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor silently issued a fix.
Vendor URL:  www.microsoft.com/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (2000)

Message History:   None.


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