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  3. Microsoft Windows Help And Support Center Trusted Document Whitelist Bypass Vulnerability

Microsoft Windows Help And Support Center Trusted Document Whitelist Bypass Vulnerability

Risk

High

Date Discovered

June 10, 2010

Description

Microsoft Windows Help And Support Center is prone to a trusted document whitelist bypass vulnerability. This issue may allow remote untrusted attackers to access arbitrary help documents which may lead to various attacks. An attacker can combine this vulnerability with another issue, such as the weakness described in BID 40721 (Microsoft Help and Support Center 'sysinfo/sysinfomain.htm' Cross Site Scripting Weakness) to execute arbitrary code on a vulnerable computer. NOTE: This issue may cause Internet Explorer 8 and other browsers to launch a warning dialog box, but this protection can be evaded by placing the attacker-supplied link in a media file and supplying the file to a user through the browser, which then launches Windows Media player and doesn't cause the warning dialog to be presented. Internet Explorer 7 and prior versions do not launch any dialog boxes when this issue is triggered. This issue is reported to affect Windows XP and Windows Server 2003; other versions of Windows may be vulnerable as well.

Technologies Affected

  • Avaya Meeting Exchange - Client Registration Server
  • Avaya Meeting Exchange - Recording Server
  • Avaya Meeting Exchange - Streaming Server
  • Avaya Meeting Exchange - Web Conferencing Server
  • Avaya Meeting Exchange - Webportal
  • Avaya Messaging Application Server
  • Avaya Messaging Application Server 4
  • Avaya Messaging Application Server 5
  • Avaya Messaging Application Server MM 1.1
  • Avaya Messaging Application Server MM 2.0
  • Avaya Messaging Application Server MM 3.0
  • Avaya Messaging Application Server MM 3.1
  • Microsoft Windows Server 2003 Datacenter Edition
  • Microsoft Windows Server 2003 Datacenter Edition Itanium
  • Microsoft Windows Server 2003 Datacenter Edition Itanium SP1
  • Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1
  • Microsoft Windows Server 2003 Datacenter Edition SP1
  • Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Enterprise Edition
  • Microsoft Windows Server 2003 Enterprise Edition Itanium
  • Microsoft Windows Server 2003 Enterprise Edition Itanium SP1
  • Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Beta 1
  • Microsoft Windows Server 2003 Enterprise Edition SP1
  • Microsoft Windows Server 2003 Enterprise Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Itanium
  • Microsoft Windows Server 2003 Itanium SP1
  • Microsoft Windows Server 2003 Itanium SP2
  • Microsoft Windows Server 2003 R2 Platfom SDK
  • Microsoft Windows Server 2003 Standard Edition
  • Microsoft Windows Server 2003 Standard Edition SP1
  • Microsoft Windows Server 2003 Standard Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Standard Edition SP2
  • Microsoft Windows Server 2003 Web Edition
  • Microsoft Windows Server 2003 Web Edition SP1
  • Microsoft Windows Server 2003 Web Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Web Edition SP2
  • Microsoft Windows XP Home SP2
  • Microsoft Windows XP Home SP3
  • Microsoft Windows XP Media Center Edition SP2
  • Microsoft Windows XP Media Center Edition SP3
  • Microsoft Windows XP Professional SP2
  • Microsoft Windows XP Professional SP3
  • Microsoft Windows XP Tablet PC Edition SP2
  • Microsoft Windows XP Tablet PC Edition SP3

Recommendations

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

Running applications with minimal privileges and within a restricted environment may limit the consequences of successful attacks.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Network intrusion detection systems should be deployed to monitor network traffic for signs of anomalous or suspicious activity. This includes requests that include unexplained incoming and outgoing traffic.

Do not follow links provided by unknown or untrusted sources.

Web users should be cautious about following links to Web sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help to remove a possible vector for transmitting malicious links to Web users.
The vendor released updates. Please see the references for more information.

Credits

Tavis Ormandy
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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