Check Point Advisories

Microsoft Word RTF Data Parsing Buffer Overflow (MS10-056; CVE-2010-1902)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-237
Date Published:	10 Aug 2010
Severity:	Critical
Last Updated:	Tuesday 10 August, 2010
Source:
Industry Reference:	CVE-2010-1902
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description	Microsoft Word is a popular word processing software. A remote code execution vulnerability has been identified in Microsoft Word. The vulnerability is due to insufficient data validation by Microsoft Office Word when handling rich text data. A remote attacker could trigger this flaw by convincing a victim to open a specially crafted Rich Text Format (.rtf) file in Word. Successful exploitation of this issue may corrupt system memory allowing execution of arbitrary code on a vulnerable system.

Protection Overview

This protection will detect and block the transferring of malformed Word RTF 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 / R65

In the IPS tab, click Protections and find the Microsoft Word RTF Data Parsing Buffer Overflow (MS10-056) 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 Word RTF data parsing buffer overflow (MS10-056)