Check Point Advisories

Tom Sawyer ActiveX Control Memory Corruption (CVE-2011-2217)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-502
Date Published:	1 Nov 2011
Severity:	Medium
Last Updated:	Monday 09 September, 2013
Source:
Industry Reference:	CVE-2011-2217
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A code execution vulnerability has been reported in Tom Sawyer. The vulnerability is due to an error while instantiating the ActiveX control in a browser. A remote attacker may exploit this vulnerability by enticing a user to open a specially crafted web-page. Successful exploitation of this vulnerability will allow an attacker to execute arbitrary code in the security context of the logged in user.

Protection Overview

This protection will detect and block attempts to open a malicious web-page.

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 Tom Sawyer ActiveX Control Memory Corruption 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: Web Client Enforcement Violation.
Attack Information: Tom Sawyer GET extension factory COM object instantiation memory corruption