Signature Detail

HTTP: Internet Explorer VML Fill Overflow

This signature detects attempts to exploit a known vulnerability in Windows Internet Explorer. A malicious Web site can exploit Web pages containing dangerous Vector Markup Language (VML) descriptions that cause buffer overflows. A successful attacker can gain control of the client browser.

Extended Description

Microsoft Internet Explorer is prone to a buffer-overflow vulnerability that arises because of an error in the processing of Vector Markup Language documents. An attacker can exploit this issue to execute arbitrary code within the context of the affected application. The method currently used to exploit this issue will typically terminate Internet Explorer. This vulnerability is currently being exploited in the wild as 'Trojan.Vimalov'. This vulnerability affects Internet Explorer version 6.0 on a fully patched system. Previous versions may also be affected. Update: Microsoft Outlook 2003 is also an attack vector for this issue, since it uses Internet Explorer to render HTML email. Reportedly, attacks are possible even when active scripting has been disabled for email viewing.

Affected Products

• Avaya Modular Messaging (MAS) 3.0.0
• Avaya Modular Messaging (MAS)
• Avaya S8100 Media Servers R10
• Avaya S8100 Media Servers R11
• Avaya S8100 Media Servers R12
• Avaya S8100 Media Servers R6
• Avaya S8100 Media Servers R7
• Avaya S8100 Media Servers R8
• Avaya S8100 Media Servers R9
• Avaya S8100 Media Servers
• HP Storage Management Appliance 2.1
• Microsoft Internet Explorer 5.0.1 SP4
• Microsoft Internet Explorer 6.0
• Microsoft Internet Explorer 6.0 SP1
• Microsoft Outlook 2003
• Microsoft Windows 2000 Advanced Server SP1
• Microsoft Windows 2000 Advanced Server SP2
• Microsoft Windows 2000 Advanced Server SP3
• Microsoft Windows 2000 Advanced Server SP4
• Microsoft Windows 2000 Advanced Server
• Microsoft Windows 2000 Datacenter Server SP1
• Microsoft Windows 2000 Datacenter Server SP2
• Microsoft Windows 2000 Datacenter Server SP3
• Microsoft Windows 2000 Datacenter Server SP4
• Microsoft Windows 2000 Datacenter Server
• Microsoft Windows 2000 Professional SP1
• Microsoft Windows 2000 Professional SP2
• Microsoft Windows 2000 Professional SP3
• Microsoft Windows 2000 Professional SP4
• Microsoft Windows 2000 Professional
• Microsoft Windows 2000 Server SP1
• Microsoft Windows 2000 Server SP2
• Microsoft Windows 2000 Server SP3
• Microsoft Windows 2000 Server SP4
• Microsoft Windows 2000 Server
• Microsoft Windows Server 2003 Datacenter Edition SP1
• Microsoft Windows Server 2003 Datacenter Edition
• Microsoft Windows Server 2003 Datacenter Edition Itanium SP1
• Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1
• Microsoft Windows Server 2003 Datacenter Edition Itanium
• Microsoft Windows Server 2003 Datacenter x64 Edition
• Microsoft Windows Server 2003 Enterprise Edition SP1
• Microsoft Windows Server 2003 Enterprise Edition
• Microsoft Windows Server 2003 Enterprise Edition Itanium SP1
• Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Beta 1
• Microsoft Windows Server 2003 Enterprise Edition Itanium
• Microsoft Windows Server 2003 Enterprise x64 Edition
• Microsoft Windows Server 2003 Standard Edition SP1
• Microsoft Windows Server 2003 Standard Edition
• Microsoft Windows Server 2003 Standard x64 Edition
• Microsoft Windows Server 2003 Web Edition SP1
• Microsoft Windows Server 2003 Web Edition
• Microsoft Windows XP
• Microsoft Windows XP 64-bit Edition SP1
• Microsoft Windows XP 64-bit Edition
• Microsoft Windows XP 64-bit Edition Version 2003 SP1
• Microsoft Windows XP 64-bit Edition Version 2003
• Microsoft Windows XP Home SP1
• Microsoft Windows XP Home SP2
• Microsoft Windows XP Home
• Microsoft Windows XP Media Center Edition SP1
• Microsoft Windows XP Media Center Edition SP2
• Microsoft Windows XP Media Center Edition
• Microsoft Windows XP Professional SP1
• Microsoft Windows XP Professional SP2
• Microsoft Windows XP Professional
• Microsoft Windows XP Professional x64 Edition
• Microsoft Windows XP Tablet PC Edition SP1
• Microsoft Windows XP Tablet PC Edition SP2
• Microsoft Windows XP Tablet PC Edition

References

• BugTraq: 20096
• CVE: CVE-2006-4868
• CVE: CVE-2006-3866
• URL: http://www.microsoft.com/technet/security/advisory/925568.mspx
• URL: http://sunbeltblog.blogspot.com/2006/09/seen-in-wild-zero-day-exploit-being.html