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Vulnerability of IE: memory corruption via the WinZip ActiveX CreateNewFolderFromName

Synthesis of the vulnerability 

A vulnerability of the CreateNewFolderFromName() method of WZFILEVIEW ActiveX leads to code execution on user's computer.
Vulnerable products: IE.
Severity of this weakness: 3/4.
Creation date: 02/01/2007.
Références of this bulletin: 922760, MS06-067, VIGILANCE-VUL-6426.

Description of the vulnerability 

The WZFILEVIEW ActiveX is installed by WinZip 10.0 (and Sky Software). This ActiveX can be called from Internet Explorer.

A memory corruption of the CreateNewFolderFromName() method of this ActiveX leads to code execution.

An attacker can therefore create a HTML page containing this ActiveX in order to run code on user's computer.
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This computer weakness bulletin impacts software or systems such as IE.

Our Vigil@nce team determined that the severity of this computer threat announce is important.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this threat announce.

Solutions for this threat 

Internet Explorer: patch.
A patch is available:
  IE 5.01 SP4, Windows 2000 SP4
    http://www.microsoft.com/downloads/details.aspx?FamilyId=B743B081-20D4-4C1C-BC86-254D2F653953
  IE 6 SP1, Windows 2000 SP4
    http://www.microsoft.com/downloads/details.aspx?FamilyId=C65C8EE7-F78D-4D52-A20C-1F896E0DC0A8
  IE 6, Windows XP SP2
    http://www.microsoft.com/downloads/details.aspx?FamilyId=EA3CE61C-3A28-4777-9EEF-1486BB483C4F
  IE 6, Windows XP Professional x64 Edition
    http://www.microsoft.com/downloads/details.aspx?FamilyId=C535A36F-705E-4663-9EE4-B82632A50F0A
  IE 6, Windows Server 2003 Gold, SP1
    http://www.microsoft.com/downloads/details.aspx?FamilyId=35EEF49C-E3D7-41EE-82F5-964A3959D453
  IE 6, Windows Server 2003 for Itanium-based Systems Gold, SP1
    http://www.microsoft.com/downloads/details.aspx?FamilyId=E8E03176-F93B-4DE7-AC95-01F9B1C5409C
  IE 6, Windows Server 2003 x64 Edition
    http://www.microsoft.com/downloads/details.aspx?familyid=ABE4FE3E-BDB6-44B1-B203-528C67980B8F
This patch also set the kill bit on the WinZip ActiveX (A09AE68F-B14D-43ED-B713-BA413F034904, F3834A2B-19CF-4A90-BE1D-ECC410D9DA09).
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