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  3. Microsoft HTML Help ActiveX Control Remote Code Execution Vulnerability

Microsoft HTML Help ActiveX Control Remote Code Execution Vulnerability

Risk

High

Date Discovered

February 13, 2007

Description

The Microsoft HTML Help ActiveX control is prone to a remote code-execution vulnerability. An attacker could exploit this issue to execute code in the context of the user visiting a malicious web page.

Technologies Affected

  • Avaya Agent Access
  • Avaya Basic Call Management System Reporting Desktop
  • Avaya Basic Call Management System Reporting Desktop server
  • Avaya CMS Supervisor
  • Avaya CVLAN
  • Avaya Computer Telephony
  • Avaya Contact Center Express
  • Avaya Enterprise Management
  • Avaya IP Agent
  • Avaya IP Softphone
  • Avaya Integrated Management
  • Avaya Interaction Center
  • Avaya Interaction Center - Voice Quick Start
  • Avaya Messaging Application Server
  • Avaya Modular Messaging (MAS)
  • Avaya Network Reporting
  • Avaya OctelAccess(r) Server
  • Avaya OctelDesignerTM
  • Avaya Operational Analyst
  • Avaya Outbound Contact Management
  • Avaya S8100 Media Servers
  • Avaya S8100 Media Servers R10
  • Avaya S8100 Media Servers R11
  • Avaya S8100 Media Servers R12
  • Avaya S8100 Media Servers R6
  • Avaya S8100 Media Servers R7
  • Avaya S8100 Media Servers R8
  • Avaya S8100 Media Servers R9
  • Avaya Speech Access
  • Avaya Unified Communication Center
  • Avaya Unified Communications Center S3400
  • Avaya Unified Messenger (r)
  • Avaya VPNmanagerTM Console
  • Avaya Web Messenger
  • HP Storage Management Appliance 2.1
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Advanced Server SP1
  • Microsoft Windows 2000 Advanced Server SP2
  • Microsoft Windows 2000 Advanced Server SP3
  • Microsoft Windows 2000 Advanced Server SP4
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Datacenter Server SP1
  • Microsoft Windows 2000 Datacenter Server SP2
  • Microsoft Windows 2000 Datacenter Server SP3
  • Microsoft Windows 2000 Datacenter Server SP4
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Professional SP1
  • Microsoft Windows 2000 Professional SP2
  • Microsoft Windows 2000 Professional SP3
  • Microsoft Windows 2000 Professional SP4
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Server SP1
  • Microsoft Windows 2000 Server SP2
  • Microsoft Windows 2000 Server SP3
  • Microsoft Windows 2000 Server SP4
  • 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 SP1
  • Microsoft Windows Server 2003 Datacenter x64 Edition
  • 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 SP1
  • Microsoft Windows Server 2003 Enterprise x64 Edition
  • Microsoft Windows Server 2003 Standard Edition
  • Microsoft Windows Server 2003 Standard Edition SP1
  • Microsoft Windows Server 2003 Standard x64 Edition
  • Microsoft Windows Server 2003 Web Edition
  • Microsoft Windows Server 2003 Web Edition SP1
  • Microsoft Windows XP
  • Microsoft Windows XP Home
  • Microsoft Windows XP Home SP1
  • Microsoft Windows XP Home SP2
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows XP Media Center Edition SP1
  • Microsoft Windows XP Media Center Edition SP2
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Professional SP1
  • Microsoft Windows XP Professional SP2
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows XP Tablet PC Edition SP1
  • Microsoft Windows XP Tablet PC Edition SP2
  • Nortel Networks CallPilot 1002rp
  • Nortel Networks CallPilot 200i
  • Nortel Networks CallPilot 201i
  • Nortel Networks CallPilot 702t
  • Nortel Networks CallPilot 703t
  • Nortel Networks Centrex IP Client Manager
  • Nortel Networks Centrex IP Client Manager 2.5.0
  • Nortel Networks Centrex IP Client Manager 7.0.0
  • Nortel Networks Centrex IP Client Manager 8.0.0
  • Nortel Networks Centrex IP Client Manager 9.0
  • Nortel Networks Contact Center
  • Nortel Networks Contact Center - Symposium Agent
  • Nortel Networks Contact Center - TAPI Server
  • Nortel Networks Contact Center Express
  • Nortel Networks Contact Center Manager
  • Nortel Networks Contact Center Manager Server
  • Nortel Networks Symposium Agent
  • Nortel Networks Symposium Network Control Center (NCC)
  • Nortel Networks Symposium TAPI Service Provider

Recommendations

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

To reduce the impact of latent vulnerabilities, always run non-administrative software as an unprivileged user with minimal access rights.

Do not follow links provided by unknown or untrusted sources.

Attackers could exploit this vulnerability by enticing a user to visit a malicious website. Do not follow links provided by sources of questionable integrity.

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

Since a successful exploit of this issue allows malicious code to execute in web clients, consider disabling support for script code and active content within the client browser. Note that this mitigation tactic might adversely affect legitimate websites that rely on the execution of browser-based script code.

Do not open email messages from unknown or untrusted individuals.

Attackers could exploit this vulnerability through HTML email messages. Never accept any email from sources of questionable integrity.
Microsoft has released fixes to address this issue. Please see the references for more information.

Credits

HD Moore of the Metasploit Project is credited with discover of this issue.
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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