Internet Explorer 8 Cross-Site Scripting Filter 'script' Tag Cross-Site Scripting Vulnerability

Bugtraq ID:	39591
Class:	Design Error
CVE:
Remote:	Yes
Local:	No
Published:	Apr 15 2010 12:00AM
Updated:	Apr 15 2010 12:00AM
Credit:	David Lindsay 'thornmaker' and Eduardo A. Vela Nava 'sirdarckcat'
Vulnerable:	Microsoft Internet Explorer 8 RC1 + Microsoft Windows 7 beta Microsoft Internet Explorer 8 beta 2 Microsoft Internet Explorer 8 Beta 1 Microsoft Internet Explorer 8 + Microsoft Windows 7 + Microsoft Windows 7 + Microsoft Windows 7 for 32-bit Systems SP1 + Microsoft Windows 7 for 32-bit Systems SP1 + Microsoft Windows 7 for 32-bit Systems 0 + Microsoft Windows 7 for 32-bit Systems 0 + Microsoft Windows 7 for x64-based Systems SP1 + Microsoft Windows 7 for x64-based Systems SP1 + Microsoft Windows 7 for x64-based Systems 0 + Microsoft Windows 7 for x64-based Systems 0 + Microsoft Windows 7 Home Premium 0 + Microsoft Windows 7 Home Premium 0 + Microsoft Windows 7 Home Premium - Sp1 X64 + Microsoft Windows 7 Home Premium - Sp1 X64 + Microsoft Windows 7 Home Premium - Sp1 X32 + Microsoft Windows 7 Home Premium - Sp1 X32 + Microsoft Windows Server 2008 R2 + Microsoft Windows Server 2008 R2 + Microsoft Windows Server 2003 Sp2 X64 + Microsoft Windows Server 2003 Sp2 X64 + Microsoft Windows Server 2003 SP2 + Microsoft Windows Server 2003 SP2 + Microsoft Windows Server 2003 Sp1 X64 + Microsoft Windows Server 2003 Sp1 X64 + Microsoft Windows Server 2003 SP1 + Microsoft Windows Server 2003 SP1 + Microsoft Windows Server 2008 R2 SP1 + Microsoft Windows Server 2008 R2 SP1 + Microsoft Windows Server 2008 for 32-bit Systems SP2 + Microsoft Windows Server 2008 for x64-based Systems SP2 + Microsoft Windows Server 2008 for x64-based Systems SP2 + Microsoft Windows Server 2008 R2 for Itanium-based Systems SP1 + Microsoft Windows Server 2008 R2 for x64-based Systems SP1 + Microsoft Windows Server 2008 R2 x64 SP1 + Microsoft Windows Server 2008 R2 x64 SP1 + Microsoft Windows Server 2008 R2 x64 0 + Microsoft Windows Server 2008 R2 x64 0 + Microsoft Windows Server 2008 Standard Edition X64 + Microsoft Windows Server 2008 Standard Edition X64 + Microsoft Windows Server 2008 Standard Edition SP2 + Microsoft Windows Server 2008 Standard Edition SP2 + Microsoft Windows Server 2008 Standard Edition 0 + Microsoft Windows Server 2008 Standard Edition 0 + Microsoft Windows Server 2008 Standard Edition - Sp2 Web + Microsoft Windows Server 2008 Standard Edition - Sp2 Web + Microsoft Windows Vista SP2 + Microsoft Windows Vista SP2 + Microsoft Windows Vista SP1 + Microsoft Windows Vista SP1 + Microsoft Windows Vista Home Premium SP2 + Microsoft Windows Vista Home Premium SP2 + Microsoft Windows Vista Home Premium SP1 + Microsoft Windows Vista Home Premium SP1 + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Basic SP2 + Microsoft Windows Vista Home Basic SP2 + Microsoft Windows Vista Home Basic SP1 + Microsoft Windows Vista Home Basic SP1 + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Enterprise SP2 + Microsoft Windows Vista Enterprise SP2 + Microsoft Windows Vista Enterprise SP1 + Microsoft Windows Vista Enterprise SP1 + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Business SP2 + Microsoft Windows Vista Business SP2 + Microsoft Windows Vista Business SP1 + Microsoft Windows Vista Business SP1 + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista Business 64-bit edition SP2 + Microsoft Windows Vista Business 64-bit edition SP2 + Microsoft Windows Vista Business 64-bit edition SP1 + Microsoft Windows Vista Business 64-bit edition SP1 + Microsoft Windows Vista Business 64-bit edition 0 + Microsoft Windows Vista Business 64-bit edition 0 + Microsoft Windows Vista Enterprise 64-bit edition SP2 + Microsoft Windows Vista Enterprise 64-bit edition SP2 + Microsoft Windows Vista Enterprise 64-bit edition SP1 + Microsoft Windows Vista Enterprise 64-bit edition SP1 + Microsoft Windows Vista Enterprise 64-bit edition 0 + Microsoft Windows Vista Enterprise 64-bit edition 0 + Microsoft Windows Vista Home Basic 64-bit edition Sp2 X64 + Microsoft Windows Vista Home Basic 64-bit edition Sp2 X64 + Microsoft Windows Vista Home Basic 64-bit edition SP2 + Microsoft Windows Vista Home Basic 64-bit edition SP2 + Microsoft Windows Vista Home Basic 64-bit edition SP1 + Microsoft Windows Vista Home Basic 64-bit edition SP1 + Microsoft Windows Vista Home Basic 64-bit edition 0 + Microsoft Windows Vista Home Basic 64-bit edition 0 + Microsoft Windows Vista Home Premium 64-bit edition SP2 + Microsoft Windows Vista Home Premium 64-bit edition SP2 + Microsoft Windows Vista Home Premium 64-bit edition SP1 + Microsoft Windows Vista Home Premium 64-bit edition SP1 + Microsoft Windows Vista Home Premium 64-bit edition 0 + Microsoft Windows Vista Home Premium 64-bit edition 0 + Microsoft Windows XP 0 + Microsoft Windows XP 0 + Microsoft Windows XP Embedded SP3 + Microsoft Windows XP Embedded SP3 + Microsoft Windows XP Embedded SP2 + Microsoft Windows XP Embedded SP2 + Microsoft Windows XP Embedded SP1 + Microsoft Windows XP Embedded SP1 + Microsoft Windows XP Embedded + Microsoft Windows XP Embedded + Microsoft Windows XP Home SP3 + Microsoft Windows XP Home SP3 + Microsoft Windows XP Home SP2 + Microsoft Windows XP Home SP2 + Microsoft Windows XP Home SP1 + Microsoft Windows XP Home SP1 + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Media Center Edition SP3 + Microsoft Windows XP Media Center Edition SP3 + Microsoft Windows XP Media Center Edition SP2 + Microsoft Windows XP Media Center Edition SP2 + Microsoft Windows XP Media Center Edition SP1 + Microsoft Windows XP Media Center Edition SP1 + Microsoft Windows XP Professional SP3 + Microsoft Windows XP Professional SP3 + Microsoft Windows XP Professional SP2 + Microsoft Windows XP Professional SP2 + Microsoft Windows XP Professional SP1 + Microsoft Windows XP Professional SP1 + Microsoft Windows XP Professional + Microsoft Windows XP Professional + Microsoft Windows XP Professional x64 Edition SP2 + Microsoft Windows XP Professional x64 Edition SP2 + Microsoft Windows XP Professional x64 Edition + Microsoft Windows XP Professional x64 Edition
Not Vulnerable:

Internet Explorer 8 Cross-Site Scripting Filter 'script' Tag Cross-Site Scripting Vulnerability

Microsoft Internet Explorer is prone to a cross-site scripting vulnerability because of a design flaw in the browser's cross-site scripting filter.

An attacker can exploit this issue to bypass intended security measures or to execute arbitrary script code in the context of the user running the application. This may allow them to steal cookie-based authentication credentials and other sensitive data that may aid in further attacks. Other attacks are possible.

Internet Explorer 8 is vulnerable.

Internet Explorer 8 Cross-Site Scripting Filter 'script' Tag Cross-Site Scripting Vulnerability

An attacker can exploit this issue by enticing an unsuspecting user to follow a malicious URI.

The following example is available:

• /data/vulnerabilities/exploits/39591.html

Internet Explorer 8 Cross-Site Scripting Filter 'script' Tag Cross-Site Scripting Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Internet Explorer 8 Cross-Site Scripting Filter 'script' Tag Cross-Site Scripting Vulnerability

References:

• Abusing Internet Explorer 8's XSS Filters (David Lindsay & Eduardo Vela Nava)
  
• Guidance on Internet Explorer XSS Filter (David Ross)
  
• ie8xss (David Lindsay & Eduardo Vela Nava)
  
• Microsoft Internet Explorer Homepage (Microsoft)
  
• Universal XSS via IE8s XSS Filters (David Lindsay & Eduardo Vela Nava)