Microsoft Internet Explorer 7 HTTP Authentication International Domain Name Spoofing Weakness

Bugtraq ID:	24483
Class:	Design Error
CVE:	CVE-2007-3164
Remote:	Yes
Local:	No
Published:	Jun 05 2007 12:00AM
Updated:	Jun 15 2007 04:09PM
Credit:	Alexander Brachmann discovered this issue.
Vulnerable:	Microsoft Internet Explorer 7.0 + 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 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 2003 Itanium SP2 + Microsoft Windows Server 2003 Itanium SP2 + Microsoft Windows Server 2003 Itanium SP2 + Microsoft Windows Server 2003 Itanium SP1 + Microsoft Windows Server 2003 Itanium SP1 + Microsoft Windows Server 2003 Itanium 0 + Microsoft Windows Server 2003 Itanium 0 + Microsoft Windows Server 2003 x64 SP2 + Microsoft Windows Server 2003 x64 SP2 + Microsoft Windows Server 2003 x64 SP2 + Microsoft Windows Server 2008 for 32-bit Systems SP2 + Microsoft Windows Server 2008 for 32-bit Systems SP2 + Microsoft Windows Server 2008 for 32-bit Systems SP2 + Microsoft Windows Server 2008 for 32-bit Systems 0 + Microsoft Windows Server 2008 for 32-bit Systems 0 + Microsoft Windows Server 2008 for 32-bit Systems 0 + Microsoft Windows Server 2008 for Itanium-based Systems SP2 + Microsoft Windows Server 2008 for Itanium-based Systems SP2 + Microsoft Windows Server 2008 for Itanium-based Systems SP2 + Microsoft Windows Server 2008 for Itanium-based Systems 0 + Microsoft Windows Server 2008 for Itanium-based Systems 0 + Microsoft Windows Server 2008 for Itanium-based Systems 0 + Microsoft Windows Server 2008 for x64-based Systems SP2 + Microsoft Windows Server 2008 for x64-based Systems SP2 + Microsoft Windows Server 2008 for x64-based Systems SP2 + Microsoft Windows Server 2008 for x64-based Systems R2 + Microsoft Windows Server 2008 for x64-based Systems R2 + Microsoft Windows Server 2008 for x64-based Systems 0 + Microsoft Windows Server 2008 for x64-based Systems 0 + Microsoft Windows Server 2008 for x64-based Systems 0 + Microsoft Windows Vista Ultimate + Microsoft Windows Vista Ultimate + Microsoft Windows Vista Ultimate + Microsoft Windows Vista Ultimate + Microsoft Windows Vista Ultimate + Microsoft Windows Vista Ultimate + Microsoft Windows Vista SP2 + Microsoft Windows Vista SP2 + Microsoft Windows Vista SP2 + Microsoft Windows Vista SP1 + Microsoft Windows Vista SP1 + Microsoft Windows Vista SP1 + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Premium + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Home Basic + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Enterprise + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista Business + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista 0 + Microsoft Windows Vista 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 Sp1 X64 + Microsoft Windows Vista Home Basic 64-bit edition Sp1 X64 + 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 Vista x64 Edition SP2 + Microsoft Windows Vista x64 Edition SP2 + Microsoft Windows Vista x64 Edition SP2 + Microsoft Windows Vista x64 Edition SP1 + Microsoft Windows Vista x64 Edition SP1 + Microsoft Windows Vista x64 Edition SP1 + Microsoft Windows Vista x64 Edition 0 + Microsoft Windows Vista x64 Edition 0 + Microsoft Windows Vista x64 Edition 0 + Microsoft Windows Vista x64 Edition Service Pack 2 0 + Microsoft Windows XP 0 + Microsoft Windows XP 0 + Microsoft Windows XP Embedded SP3 + Microsoft Windows XP Embedded SP3 + Microsoft Windows XP Embedded SP3 + Microsoft Windows XP Home SP3 + 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 Media Center Edition SP3 + Microsoft Windows XP Media Center Edition SP3 + Microsoft Windows XP Media Center Edition SP3 + Microsoft Windows XP Professional SP3 + 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 SP3 + Microsoft Windows XP Professional x64 Edition SP3 + Microsoft Windows XP Professional x64 Edition SP2 + 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 + Microsoft Windows XP Service Pack 3 0 + Microsoft Windows XP Service Pack 3 0 + Microsoft Windows XP Tablet PC Edition SP3 + Microsoft Windows XP Tablet PC Edition SP3 + Microsoft Windows XP Tablet PC Edition SP3
Not Vulnerable:

Microsoft Internet Explorer 7 HTTP Authentication International Domain Name Spoofing Weakness

Microsoft Internet Explorer 7 is prone to a weakness that may allow attackers to spoof hostnames in HTTP-authentication dialogs.

Attackers may exploit this vulnerability via a malicious webpage to spoof the origin of an HTTP-authentication dialog that the victim may trust. Attackers may find this issue useful in phishing or other attacks that rely on content spoofing.

Microsoft Internet Explorer 7 HTTP Authentication International Domain Name Spoofing Weakness

To exploit this issue, an attacker must entice an unsuspecting user to visit a maliciously crafted webpage.

A proof-of-concept page has been created to demonstrate this issue. Please see the references for details.

Microsoft Internet Explorer 7 HTTP Authentication International Domain Name Spoofing Weakness

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

Microsoft Internet Explorer 7 HTTP Authentication International Domain Name Spoofing Weakness

References:

• Cross Domain Basic Auth Phishing Tactics (ha.ckers)
  
• Internet Explorer Homepage (Microsoft)
  
• HTTP-Auth Phishing mit Opera (Alexander Brachmann)