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

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Check Point Reference: CPAI-2011-588
Date Published:
Severity:
Source: Apple Advisory
Industry Reference(s): CVE-2011-1774
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Apple Computer Safari prior to 5.0.6
Vulnerability Description
An arbitrary file creation vulnerability has been reported in Apple Safari.
Vulnerability Details
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 product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?
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.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Web Client Enforcement Violation
Attack Information: Apple Safari Webkit libxslt arbitrary file creation