Check Point Advisories

Apple Safari WebKit Selections Use After Free (CVE-2010-1812)

Check Point Reference: CPAI-2010-447
Date Published: 12 Dec 2010
Severity: High
Last Updated: Tuesday 21 February, 2012
Source:
Industry Reference:CVE-2010-1812
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Safari is a web browsing application developed by Apple. The browser is capable of processing HTML, images, scripting languages, and various other popular Internet specifications. Safari is the default web browser included with Mac OS X. A simplified version, MobileSafari, runs on Apple iPhone devices. The browser can also run on other operating systems such as Microsoft's Windows XP and Vista. Safari browsing functionality is built around the set of components called WebKit. A code execution vulnerability has been reported in Apple Safari. The vulnerability is due to an use-after-free error when processing selections. A remote attacker can exploit this vulnerability by enticing a target user to open a maliciously crafted web page. In case of an attack where code injection and execution is successful, the behavior of the target machine is entirely dependent on the intended purpose of the injected code. Any code injected would run within the security context of the logged on user. In case of an attack where code injection is not successful, the vulnerable application may terminate abnormally.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

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

  1. In the IPS tab, click Protections and find the Apple Safari WebKit Selections Use After Free 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 WebKit selections use after free

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