Check Point Advisories

Apple Safari for Windows and Internet Explorer Combined Code Execution (CVE-2008-2540)

Check Point Reference: CPAI-2010-216
Date Published: 13 Jul 2010
Severity: High
Last Updated: Tuesday 13 July, 2010
Source:
Industry Reference:CVE-2008-2540
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description Microsoft Internet Explorer is the most widely used Internet browser. Safari is a web browsing application developed by Apple. A combination of the default download location in Safari and how the Windows desktop handles executables creates a blended threat in which files may be downloaded to a user's machine without prompting, allowing them to be executed. An attacker could trick users into visiting a specially crafted Web site that could download content to a user's machine and execute the content locally. Successful exploitation of this vulnerability will allow an attacker to take complete control of the affected system. In case of an attack where code injection and execution is successful, the behavior of the target will depend on the intended purpose of the injected code. Any injected code will be executed within the security context of the currently logged in user. In case of an attack where code injection is unsuccessful, unknown files can be found in the desktop.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability by misusing the attribute child removal.

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 Apple Safari for Windows and Internet Explorer Combined Code Execution 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:  Apple Safari for Windows and Internet Explorer combined code execution

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