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Category:   Application (Generic)  >   Microsoft HTML Help Vendors:   Microsoft
Microsoft HTML Help Heap Overflow in HHCtrl ActiveX Control May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1016434
SecurityTracker URL:  http://securitytracker.com/id/1016434
CVE Reference:   CVE-2006-3357   (Links to External Site)
Updated:  Aug 8 2006
Original Entry Date:  Jul 4 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in Microsoft HTML Help. 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 trigger a heap overflow and potentially execute arbitrary code on the target system. The code will run with the privileges of the target user.

The vulnerability resides in the HHCtrl ActiveX control.

H D Moore reported this vulnerability.

The original advisory is available at:

http://browserfun.blogspot.com/2006/07/mobb-2-internethhctrl-image-property.html

A demonstration exploit is available at:

http://metasploit.com/users/hdm/tools/browserfun/mobb_002.html

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 has issued the following fixes:

Microsoft Windows 2000 Service Pack 4:

http://www.microsoft.com/downloads/details.aspx?FamilyId=34ebe5d3-40c9-41dc-aaff-64608d3ac7b1

Microsoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyId=a6e2cb0a-146f-4300-95cb-7078ce9f9844

Microsoft Windows XP Professional x64 Edition:

http://www.microsoft.com/downloads/details.aspx?FamilyId=997a633a-8836-4c0f-98f9-1fd378de4b0c

Microsoft Windows Server 2003 and Microsoft Windows Server 2003 Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?FamilyId=5132c3bc-f3af-464e-a615-60f72677bd4b

Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems:

http://www.microsoft.com/downloads/details.aspx?FamilyId=527cc785-e69e-4ade-aaf7-61f96ac3ca7a

Microsoft Windows Server 2003 x64 Edition:

http://www.microsoft.com/downloads/details.aspx?FamilyId=fd1253b0-f4db-4808-a381-98ff9870ebb3

A restart is not required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms06-046.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms06-046.mspx (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (2000), Windows (2003), Windows (XP)
Underlying OS Comments:  2000 SP4, XP SP2, 2003 SP1; and prior service packs

Message History:   None.


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