Check Point Advisories

Apple WebKit Use After Free Code Execution (CVE-2017-13795)

Check Point Reference: CPAI-2018-0006
Date Published: 19 Dec 2017
Severity: Medium
Last Updated: Wednesday 03 January, 2018
Source: Google Project Zero
Industry Reference:CVE-2017-13795
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? iOS before 11.1
Safari before 11.0.1
iCloud before 7.1 for Window
iTunes before 12.7.1 for Window
tvOS before 11.1
Vulnerability Description A remote code execution vulnerability has been discovered in Apple's WebKit. The vulnerability is due to the way the scripting engine handles objects in memory. A remote unauthenticated attacker could exploit this vulnerability by enticing the target user to open a specially crafted web page.

Protection Overview

This protection detects 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 Apple WebKit Use After Free Code Execution (CVE-2017-13795) 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:  Web Client Enforcement Violation.
Attack Information:  Apple WebKit Use After Free Code Execution (CVE-2017-13795)

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