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Fortinet Discovers Vulnerability in Microsoft Office Web Components

Fortinet's FortiGuard Intrusion Prevention Service (IPS) Protects Against Remote Code Execution Vulnerability

SUNNYVALE, Calif. - July 15, 2009 - Fortinet® - a market-leading network security provider and worldwide leader of unified threat management (UTM) solutions -today announced that Fortinet Global Security esearch Team recently discovered a critical memory corruption vulnerability existing in the ActiveX Controls of Microsoft Office Web Components, which allows a remote attacker to compromise a system through a malicious site. Fortinet customers using the FortiGuard Intrusion Prevention Service (IPS) should be protected against the remote code execution vulnerability.

The vulnerability lies in the default ActiveX Control installed by Microsoft Office. The vulnerability works by allowing a remote attacker to successfully craft a malicious HTML content which can then exploit the vulnerability in Internet Explorer, causing memory corruption and resulting in a remote-code execution vulnerability through a call instruction.

Fortinet customers subscribing to Fortinet's FortiGuard IPS should be protected against this remote code execution vulnerability. Fortinet's IPS is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and anti-spam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by the FortiGuard Global Security esearch Team, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate appliances, FortiMailÌ¢åãå¢ email security, and FortiClientÌ¢åãå¢ endpoint products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.

This vulnerability affects the following software: Microsoft Office XP Service Pack 3, Microsoft Office 2003 Service Pack 3, Microsoft Office XP Web Components Service Pack 3, Microsoft Office 2003 Web Components Service Pack 3, Microsoft Office 2003 Web Components for the 2007 Microsoft Office system Service Pack 1, Microsoft Internet Security and Acceleration Server 2004 Standard Edition Service Pack 3, Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition Service Pack 3, Microsoft Internet Security and Acceleration Server 2006, Internet Security and Acceleration Server 2006 Supportability Update, Microsoft Internet Security and Acceleration Server 2006 Service Pack 1, and Microsoft Office Small Business Accounting 2006.

Microsoft is currently working to develop a security update to address this vulnerability; see Microsoft's advisory and workaround solution: For more information on this vulnerability, please visit

For ongoing threat research, bookmark the FortiGuard Center ( or add it to your SS feed by going to To learn more about FortiGuard Subscription Services, visit

About Fortinet (

Fortinet is a leading provider of network security appliances and the market leader in Unified Threat Management or UTM. Fortinet solutions were built from the ground up to integrate multiple levels of security protection -- including firewall, VPN, antivirus, intrusion prevention, Web content filtering, spyware prevention and antispam -- designed to help customers protect against network and content level threats. Leveraging a custom ASIC and unified interface, Fortinet solutions offer advanced security functionality that scales from remote office to chassis-based solutions with integrated management and reporting. Fortinet solutions have won multiple awards around the world and are the only security products that are certified in five programs by ICSA Labs: Firewall, Antivirus, IPSec VPN, Network IPS and Antispam. Fortinet is based in Sunnyvale, California.

Copyright © 2009 Fortinet, Inc. All rights reserved. The symbols ® and ™ denote respectively federally registered trademarks and unregistered trademarks of Fortinet, Inc., its subsidiaries and affiliates, including, but not limited to, the following trademarks: Fortinet, FortiGate, FortiGuard, FortiManager, FortiMail, FortiClient, FortiCare, FortiAnalyzer, FortiReporter, FortiOS, FortiASIC, FortiWiFi, FortiSwitch, FortiVoIP, FortiBIOS, FortiLog, FortiResponse, and FortiDB. Other trademarks belong to their respective owners. Fortinet has not independently verified statements above attributed to other parties, and Fortinet does not endorse any such statements.

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Since deploying the FortiWifi appliances, we have enabled our employees to work more efficiently and have also given customers the benefit of working on their laptops in a secure and wireless environment. Fortinet has allowed us to dramatically improve customer service with the wireless network. Not only are customers able to be productive while getting a vehicle oil change, but the time to process the information for such service has gone from three to five minutes to three to five seconds.

Bryan Justice
Manager of Business Technology and Computer Services