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  3. Microsoft Internet Explorer Plug-in Navigations Handling Address Bar Spoofing Vulnerability

Microsoft Internet Explorer Plug-in Navigations Handling Address Bar Spoofing Vulnerability

Risk

Medium

Date Discovered

October 12, 2004

Description

It is reported that Microsoft Internet Explorer is prone to a vulnerability that may allow a malicious Web page containing embedded flash multimedia to spoof the address bar of the browser. This could be used to lure Web users into a false sense of trust since a malicious or spoofed site may pose as a site that is trusted by the user.

Technologies Affected

  • Avaya DefinityOne Media Servers
  • Avaya IP600 Media Servers
  • Avaya Modular Messaging (MSS) 1.1.0
  • Avaya Modular Messaging (MSS) 2.0.0
  • Avaya S3400 Message Application Server
  • Avaya S8100 Media Servers
  • Microsoft Internet Explorer 5.0.1
  • Microsoft Internet Explorer 5.0.1 SP1
  • Microsoft Internet Explorer 5.0.1 SP2
  • Microsoft Internet Explorer 5.5
  • Microsoft Internet Explorer 5.5 SP1
  • Microsoft Internet Explorer 5.5 SP2
  • Microsoft Internet Explorer 6.0
  • Microsoft Internet Explorer 6.0 SP1

Recommendations

Run all software as a nonprivileged user with minimal access rights.

As a general security precaution, all non-administrative tasks should be performed as an unprivileged user with minimal access rights.

Do not follow links provided by unknown or untrusted sources.

Users should be wary of visiting links provided through unsolicited email or otherwise presented by an unfamiliar or untrusted source.

Set web browser security to disable the execution of script code or active content.

Disabling support for client-side scripting and Active Content for sites in the Internet Zone may limit exposure to this and other vulnerabilities.

Do not accept communications that originate from unknown or untrusted sources.

Users should avoid accepting or opening HTML email due to the possibility that it may be used as an attack vector for this or other vulnerabilities. Client support for HTML email should be disabled and if possible, HTML email should also be filtered at the gateway.

Do not open email messages from unknown or untrusted individuals.

Users should avoid accepting or opening HTML email due to the possibility that it may be used as an attack vector for this or other vulnerabilities. Client support for HTML email should be disabled and if possible, HTML email should also be filtered at the gateway.
Microsoft has released a cumulative update for supported versions of Internet Explorer to address this and other vulnerabilities. Avaya has released an advisory that acknowledges this vulnerability for Avaya products. Customers are advised to follow Microsoft.s guidance for applying patches. Please see the referenced Avaya advisory at the following location for further details: http://support.avaya.com/japple/css/japple?temp.groupID=128450&temp.selectedFamily=128451&temp.selectedProduct=154235&temp.selectedBucket=126655&temp.feedbackState=askForFeedback&temp.documentID=203487&PAGE=avaya.css.CSSLvl1Detail&executeTransaction=avaya.css.UsageUpdate()

Credits

Discovery of this vulnerability is credited to Liu Die Yu.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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