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Internet Explorer 7 Popup Address Bar Spoofing Weakness Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA22542  
Release Date: 2006-10-25
Last Update: 2006-10-31

Critical:
Less critical
Impact: Spoofing
Where: From remote
Solution Status: Unpatched

Software:Microsoft Internet Explorer 7.x

CVE reference:CVE-2006-5544 (Secunia mirror)

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
A weakness has been discovered in Internet Explorer, which can be exploited by malicious people to conduct phishing attacks.

The problem is that it's possible to display a popup with a somewhat spoofed address bar where a number of special characters have been appended to the URL. This makes it possible to only display a part of the address bar, which may trick users into performing certain unintended actions.

Secunia has constructed a demonstration, which is available at:
http://secunia.com/internet_explorer_7_popup_address_bar_spoofing_test/

The weakness is confirmed in Internet Explorer 7 on a fully patched Windows XP SP2 system.

Solution:
Do not follow links from untrusted sources.

Provided and/or discovered by:
Discovered by an anonymous person.

Changelog:
2006-10-27: Added link to US-CERT.
2006-10-31: Added CVE reference.

Other References:
US-CERT VU#347188:
http://www.kb.cert.org/vuls/id/347188

Reason for Rating:
The "Reason for Rating" section is available for Secunia customers only. Request a trial and get access to the Secunia Customer Area and Extended Secunia advisories.



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.

26 Related Secunia Security Advisories, displaying 10

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

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