Check Point Advisories

Apple Safari webarchive File Format UXSS

Vulnerability
Protection

Check Point Reference:	CPAI-2013-2452
Date Published:	4 Jul 2013
Severity:	High
Last Updated:	Thursday 04 July, 2013
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A UXSS vulnerability has been reported in the Apple Safari webarchive File Format. The vulnerability is due to a flaw exists in the security model behind webarchives that allows to execute script in the context of any domain.A remote attacker can exploit this issue by sending a specially crafted webarchive file to the target user. Successful exploitation would lead to code execution in the security context of the affected service.

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

In the IPS tab, click Protections and find the Apple Safari webarchive File Format UXSS protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Content Protection Violation.
Attack Information: Apple Safari webarchive File Format UXSS