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Secunia Advisory SA11273

Internet Explorer/Outlook Express Restricted Zone Status Bar Spoofing
Secunia Advisory SA11273
Secunia VIM 4.0 - Free Trial
Release Date 2004-04-01
Last Update 2004-12-07
   
Popularity 61,569 views
Comments 0 comments

Criticality level Not criticalNot critical
Impact Security Bypass
Where From remote
Authentication level This information is available to Secunia VIM customers
   
Report reliability This information is available to Secunia VIM customers
Solution Status Unpatched
   
Systems affected This information is available to Secunia VIM customers
Approve distribution This information is available to Secunia VIM customers
Remediation status Secunia VIM
   
Software:
Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 5.5
Microsoft Internet Explorer 6.x
Microsoft Outlook Express 5
Microsoft Outlook Express 5.5
Microsoft Outlook Express 6

Secunia CVSS Score This information is available to Secunia VIM Customers
CVE Reference(s) CVE-2004-1104 CVSS score available to Secunia VIM customers
  

Description

http-equiv has discovered a weakness in Internet Explorer, which potentially can be exploited by malicious people to trick users into visiting a malicious website.

It is normally possible for script code to manipulate information displayed in the status bar. However, an error in Internet Explorer allows manipulation of the status bar without using any script code. This can be exploited by embedding a specially crafted form in a link.

Example:
<A HREF="http://[trusted_site]/">
<FORM action=http://[malicious_site]/ method=get>
<INPUT style="BORDER-RIGHT: 0pt; BORDER-TOP: 0pt; FONT-SIZE: 10pt;
BORDER-LEFT: 0pt; CURSOR: hand; COLOR: blue; BORDER-BOTTOM: 0pt;
BACKGROUND-COLOR: transparent; TEXT-DECORATION: underline"
type=submit value=http://[trusted_site]/>
</A>

This also affects Outlook Express as it uses the same HTML rendering functionality as Internet Explorer. Outlook Express users may especially trust information displayed in the status bar since HTML documents are viewed in context of the "Restricted" zone, which has scripting support disabled.

Successful exploitation may result in a user being tricked into visiting a malicious website by following a specially crafted link.

The problem has been confirmed in versions 5.01 and 6. Version 5.5 is likely also affected.


Solution
Never follow links from untrusted sources.

Provided and/or discovered by
http-equiv, malware.com.

Changelog
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Internet Explorer/Outlook Express Restricted Zone Status Bar Spoofing
 
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