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Internet Explorer 7 "mhtml:" Redirection Information Disclosure Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA22477  
Release Date: 2006-10-19
Last Update: 2007-06-12

Critical:
Less critical
Impact: Exposure of sensitive information
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Internet Explorer 7.x

CVE reference:CVE-2006-2111 (Secunia mirror)

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Description:
A vulnerability has been discovered in Internet Explorer, which can be exploited by malicious people to disclose potentially sensitive information.

The vulnerability is caused due to an error in the handling of redirections for URLs with the "mhtml:" URI handler. This can be exploited to access documents served from another web site.

Secunia has constructed a test, which is available at:
http://secunia.com/Internet_Explorer_Arbitrary_Content_Disclosure_Vulnerability_Test/

Secunia has confirmed the vulnerability on a fully patched system with Internet Explorer 7.0 and Microsoft Windows XP SP2. Other versions may also be affected.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.

Solution:
Apply patches.

Windows XP SP2:
http://www.microsoft.com/downloads/de...=27cca556-0872-4803-b610-4c895ceb99aa

Windows XP Professional x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/de...=1ea813bf-bddb-40f0-8960-b9debc8413e7

Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/de...=93808a74-035c-4ab7-9283-c693d7bd82be

Windows Server 2003 x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/de...=f63323a9-e285-45e5-84bd-71ae9da126e3

Windows Server 2003 SP1/SP2 for Itanium-based Systems:
http://www.microsoft.com/downloads/de...=2e62e96e-6571-437d-a612-99175ac39025

Windows Vista:
http://www.microsoft.com/downloads/de...=ee57de19-44ea-48f2-ae28-e76fd2018633

Windows Vista x64 Edition:
http://www.microsoft.com/downloads/de...=343db20f-7794-4423-b11d-885329fbdf78

Changelog:
2007-06-12: Updated "Solution" section. Added CVE reference.

Original Advisory:
MS07-034 (KB929123):
http://www.microsoft.com/technet/security/bulletin/ms07-034.mspx

Other References:
SA19738:
http://secunia.com/advisories/19738/



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

29 Related Secunia Security Advisories, displaying 10

1. Internet Explorer 7 Frame Location Handling Vulnerability
2. Internet Explorer "substringData()" Memory Corruption Vulnerability
3. Internet Explorer "DisableCachingOfSSLPages" Weakness
4. Internet Explorer "Print Table of Links" Cross-Zone Scripting
5. Internet Explorer HTTP Request Smuggling/Splitting Vulnerabilities
6. Microsoft Internet Explorer Multiple Vulnerabilities
7. Internet Explorer Multiple Code Execution Vulnerabilities
8. Microsoft Web Proxy Auto-Discovery Feature Security Issue
9. Internet Explorer Data Stream Handling Vulnerability
10. Internet Explorer Unspecified Address Bar Spoofing Vulnerability

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