Microsoft Internet Explorer (IE) permits modification of URL displayed in address bar

Overview

A vulnerability exists in Microsoft Internet Explorer which could could enable an attacker to spoof trusted web sites.

Description

A vulnerability exists in Microsoft Internet Explorer. This vulnerability could enable a web page to display the URL
from a different web site in the IE address bar. This spoofing could occur within a valid SSL session with the impersonated site, meaning that a web site operator could make it appear that the content from his or her Web site actually originated from another site, even a trusted or secure Web site, when in fact, it did not.

More information on this problem is available from Microsoft at:

<http://www.microsoft.com/technet/security/bulletin/MS01-027.asp&gt;

Impact

This vulnerability could be used to convince a user that the intruder’s web site was actually a different one - a web site that the user
trusts and might provide sensitive information to.

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Solution

Apply the patch described in <http://www.microsoft.com/technet/security/bulletin/MS01-027.asp&gt;[](&lt;http://www.microsoft.com/Downloads/Release.asp?ReleaseID=23432&gt;)

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Vendor Information

988768

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Updated: June 05, 2001

Status

Affected

Vendor Statement

Microsoft has published a security document regarding this vulnerability, the contents of which can be found at <http://www.microsoft.com/technet/security/bulletin/MS01-027.asp&gt;

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23988768 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.microsoft.com/technet/security/bulletin/MS01-027.asp&gt;
• [ http://www.securityfocus.com/bid/2737](< http://www.securityfocus.com/bid/2737&gt;)

Acknowledgements

Our thanks to Microsoft for the information contained in their bulletin.

This document was written by Ian A. Finlay and is based on information obtained from a Microsoft Security Advisory.

Other Information

CVE IDs:	CVE-2001-0339
Date Public:	2001-05-17 Date First Published: