Check Point Advisories

Oracle Java Private MethodHandle Sandbox Bypass (CVE-2013-5893)

Check Point Reference: CPAI-2014-0755
Date Published: 21 Jan 2014
Severity: High
Last Updated: Monday 09 June, 2014
Source:
Industry Reference:CVE-2013-5893
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description A sandbox bypass vulnerability exists in Oracle Java. The vulnerability is due to a failure to restrict access to private methods via reflection. A remote unauthenticated attacker can exploit this vulnerability by enticing a user to visit a webpage containing a maliciously crafted Java applet. Successful exploitation could result in arbitrary code execution in the context of the currently logged in user.

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 Oracle Java Private MethodHandle Sandbox Bypass 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:  Oracle Protection Violation.
Attack Information:  Oracle Java Private MethodHandle Sandbox bypass

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