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  3. Microsoft Outlook Express And Windows Mail MHTML Handler Information Disclosure Vulnerability

Microsoft Outlook Express And Windows Mail MHTML Handler Information Disclosure Vulnerability

Risk

Medium

Date Discovered

August 12, 2008

Description

Microsoft Outlook Express And Windows Mail are prone to an information-disclosure vulnerability because of an error in the Windows MHTML protocol handler. Note that an attacker can exploit this issue via Internet Explorer because the browser internally uses the vulnerable component of Outlook Express and Windows Mail. Successful exploits will allow the attacker to bypass Internet Explorer domain restrictions and to read data from a different Internet Explorer domain or security zone.

Technologies Affected

  • HP Storage Management Appliance 2.1
  • HP Storage Management Appliance I
  • HP Storage Management Appliance II
  • HP Storage Management Appliance III
  • Microsoft Outlook Express 5.5 SP2
  • Microsoft Outlook Express 6.0
  • Microsoft Outlook Express 6.0 SP1
  • Microsoft Windows 2000 Professional SP4
  • Microsoft Windows Mail
  • Microsoft Windows Server 2003 Itanium SP1
  • Microsoft Windows Server 2003 Itanium SP2
  • Microsoft Windows Server 2003 SP1
  • Microsoft Windows Server 2003 SP2
  • Microsoft Windows Server 2003 Standard x64 Edition
  • Microsoft Windows Server 2003 x64 SP2
  • Microsoft Windows Server 2008 for 32-bit Systems
  • Microsoft Windows Server 2008 for Itanium-based Systems
  • Microsoft Windows Server 2008 for x64-based Systems
  • Microsoft Windows Vista
  • Microsoft Windows Vista SP1
  • Microsoft Windows Vista x64 Edition
  • Microsoft Windows Vista x64 Edition SP1
  • Microsoft Windows XP Professional SP2
  • Microsoft Windows XP Professional SP3
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows XP Professional x64 Edition SP2

Recommendations

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

When possible, run all software as a user with minimal privileges and limited access to system resources. Use additional precautions such as restrictive environments to insulate software that may potentially handle malicious content.

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

Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This may indicate exploit attempts or activity that results from successful exploits.

Do not follow links provided by unknown or untrusted sources.

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

Credits

Jorge Luis Alvarez Medina
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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