Check Point Advisories

Yahoo! Toolbar URL Shortcut ActiveX Control Buffer Overflow (CVE-2007-6535)

Check Point Reference: CPAI-2008-008
Date Published: 3 Feb 2008
Severity: High
Last Updated: Sunday 03 February, 2008
Source:
Industry Reference:CVE-2007-6535
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description Yahoo! Toolbar is a pop-up blocker for Firefox and Internet Explorer that allows instant access to several Yahoo! features. A buffer overflow vulnerability was reported in Yahoo! Toolbar. This vulnerability is due to boundary errors in the Yahoo! Toolbar YShortcut ActiveX Control. To trigger this issue, an attacker may create a malicious web page that will exploit the ActiveX Control flaws. Successful exploitation may allow execution of arbitrary code on the vulnerable system.

Protection Overview

This protection will detect and block the vulnerability in the ActiveX Control.

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

  1. In the IPS tab, click Protections and find the Yahoo! Toolbar URL Shortcut ActiveX Control Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Yahoo! Toolbar URL shortcut ActiveX control buffer overflow

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