Check Point Advisories

Microsoft Office Drawing Shape Group Properties Buffer Overflow (MS10-003; CVE-2010-0243)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-035
Date Published:	9 Feb 2010
Severity:	High
Last Updated:	Tuesday 09 February, 2010
Source:
Industry Reference:	CVE-2010-0243
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	Microsoft Excel is a popular spreadsheet application. A remote code execution vulnerability has been reported in the way Microsoft Office handles specially crafted Excel files. The vulnerability is due to a memory corruption error in Microsoft Office when loading malformed Excel records. A remote attacker could trigger this flaw by convincing a victim to open a specially crafted Excel file that includes malformed drawing shape group properties. Successful exploitation of this issue may allow execution of arbitrary code on a vulnerable system.

Protection Overview

This protection will detect and block the transferring of malformed Excel files over HTTP.

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 / R71 / R70

In the IPS tab, click Protections and find the Microsoft Office Drawing Shape Group Properties Buffer Overflow (MS10-003) 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 drawing shape group properties buffer overflow (MS10-003)