Check Point Advisories

Apple Safari Webkit libxslt Arbitrary File Creation (CVE-2011-1774)

Check Point Reference: CPAI-2011-588
Date Published: 27 Dec 2011
Severity: High
Last Updated: 16 Jan 2018
Industry Reference:CVE-2011-1774
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable?
Vulnerability Description An arbitrary file creation vulnerability exists in Apple Safari. The vulnerability is due to insufficient restriction of the Webkit by Safari while performing an XSL transformation. A remote attacker may exploit this vulnerability by enticing a user to open a specially crafted web page with an affected version of Safari. Successful exploitation could allow an attacker to write or overwrite arbitrary files on the target machine.

Protection Overview

This protection will detect and block attempts to open a malicious XSLT page.

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 / R76 / R75

  1. In the IPS tab, click Protections and find the Apple Safari Webkit libxslt Arbitrary File Creation protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Apple Safari Webkit libxslt Arbitrary File Creation

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