FortiGuard Advisory (FGA-2010-28)

Fortinet Discovers Microsoft Excel Vulnerability
2010.June.08

Summary:

Fortinet's FortiGuard Labs has discovered a memory corruption vulnerability in Microsoft Office Excel, which allows a remote attacker to compromise a system through a malicious document.

Impact:

Remote code execution.

Risk:

High

Affected Software:

For a list of affected software, please refer to the Microsoft Security Bulletin reference below.

Additional Information:

One memory corruption vulnerability was discovered in Microsoft Office Excel:
  • Memory corruption in "excel.exe" (CVE-2010-0823)

The vulnerability is triggered when opening and rendering an Excel file. A remote attacker could craft a malicious document which exploits this vulnerability, allowing them to compromise a system.

Solutions:

FortiGuard Labs released the following signature to protect against this vulnerability:
References:

Acknowledgment:
  • Bing Liu of Fortinet's FortiGuard Labs


Disclaimer:

Although Fortinet has attempted to provide accurate information in these materials, Fortinet assumes no legal responsibility for the accuracy or completeness of the information. More specific information is available on request from Fortinet. Please note that Fortinet's product information does not constitute or contain any guarantee, warranty or legally binding representation, unless expressly identified as such in a duly signed writing.

About Fortinet ( www.fortinet.com ):

Fortinet is the pioneer and leading provider of ASIC-accelerated unified threat management, or UTM, security systems, which are used by enterprises and service providers to increase their security while reducing total operating costs. Fortinet solutions were built from the ground up to integrate multiple levels of security protection--including firewall, antivirus, intrusion prevention, VPN, spyware prevention and anti-spam -- 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 six programs by ICSA Labs: (Firewall, Antivirus, IPSec, SSL, Network IPS, and Anti-Spyware). Fortinet is privately held and based in Sunnyvale, California.