Check Point Advisories

Microsoft Office BMP Header biClrUsed Integer Overflow (MS09-062; CVE-2009-2518)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-435
Date Published:	3 Feb 2010
Severity:	High
Last Updated:	Thursday 24 April, 2014
Source:
Industry Reference:	CVE-2009-2518
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Microsoft Office is a popular productivity application suite released by Microsoft Corporation. It includes a word processor, a spreadsheet application, a presentation editor, and a number of other applications and components. The Office Document files used by these applications contain a common section that stores metadata, which includes the author name, application name, date of creation and other optional information. Among other features, Microsoft Office applications allow embedding of bitmap images in the documents. An integer overflow vulnerability has been reported in Microsoft Office. The vulnerability is due to lack of validation when processing BMP header. Remote attackers can exploit this vulnerability by enticing the target user to open a malicious document. Successful exploitation could result in injection and execution of arbitrary code, within the security context of the currently logged in user. The behaviour of the target would depend on the intention of the malicious code. In case if code injection is not successful, the affected application will terminate abnormally causing a denial of service condition.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Office BMP Header biClrUsed Integer Overflow (MS09-062) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Content Protection Violation.
Attack Information: Microsoft Office BMP header biClrUsed integer overflow (MS09-062)