Check Point Advisories

Microsoft Internet Explorer onreadystatechange Use After Free

Check Point Reference: CPAI-2014-1834
Date Published: 22 Oct 2014
Severity: High
Last Updated: Wednesday 22 October, 2014
Source:
Protection Provided by:

Security Gateway
R77

  • R76
  • R75

    		•
    Who is Vulnerable? Microsoft Internet Explorer 9
    Vulnerability Description A use after free vulnerability exists in Microsoft Internet Explorer. A remote unauthenticated attacker could exploit this vulnerability by enticing the target user to open a specially crafted web page. Successful exploitation could lead to arbitrary code execution in the security context of the target user.

    Protection Overview

    Security Gateway R77 / R76 / R75 / R71 / R70

    1. In the IPS tab, click Protections and find the Microsoft Internet Explorer onreadystatechange Use After Free protection using the Search tool and Edit the protection's settings.
    2. Install policy on all modules.

    SmartView Tracker will log the following entries:

    Attack Name:  Web Client Enforcement Violation.
    Attack Information:  Microsoft Internet Explorer onreadystatechange Use After Free

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