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Netsikker nu! 2008
 
Internet Explorer 6 Window "location" Handling Vulnerability
Secunia Advisory: SA30857
Release Date: 2008-06-26
Last Update: 2008-10-14
Popularity: 10,551 views

Critical:
Moderately critical
Impact: Security Bypass
Cross Site Scripting
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Internet Explorer 6.x

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CVE reference:CVE-2008-2947


Description:
Ph4nt0m Security Team has discovered a vulnerability in Internet Explorer 6, which can be exploited by malicious people to conduct cross-domain scripting attacks.

The vulnerability is caused due to an input validation error when handling the "location" or "location.href" property of a window object. This can be exploited by a malicious website to e.g. open a trusted site and execute arbitrary script code in a user's browser session in context of the trusted site.

The vulnerability is confirmed in IE6 on Windows XP SP2. Other versions may also be affected.

Solution:
Apply patches.

Windows XP SP2/SP3:
http://www.microsoft.com/downloads/de...=A7F0F47B-B1EE-4516-9FBF-BF8E579963D0

Windows XP Professional x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/de...=234C05FB-988B-4E02-AAB6-BB23E447DF3D

Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/de...=AE8D22D5-20AA-471D-A423-F54C9D75FEBE

Windows Server 2003 x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/de...=07FC88C4-2571-4A4D-B573-AE576798AB4C

Windows Server 2003 with SP1/SP2 for Itanium-based Systems:
http://www.microsoft.com/downloads/de...=B68937AF-F04A-4D1E-9D7F-EC92AF5194DE

Provided and/or discovered by:
Ph4nt0m Security Team

Changelog:
2008-06-27: Added link to US-CERT.
2008-07-09: Added CVE reference.
2008-10-14: Microsoft issues patches. Updated "Solution" section.

Original Advisory:
Ph4nt0m Security Team (Chinese):
http://www.ph4nt0m.org-a.googlepages.com/PSTZine_0x02_0x04.txt

MS08-058 (KB956390):
http://www.microsoft.com/technet/security/Bulletin/MS08-058.mspx

Other References:
US-CERT VU#923508:
http://www.kb.cert.org/vuls/id/923508


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