Check Point Advisories

Apple WebKit out-of-bounds read (CVE-2017-13784)

Check Point Reference: CPAI-2017-1063
Date Published: 12 Dec 2017
Severity: Medium
Last Updated: 12 Dec 2017
Source: Project zero
Industry Reference:CVE-2017-13784
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable? iOS before 11.1.
Safari before 11.0.1.
iCloud before 7.1 on Windows.
iTunes before 12.7.1 on Windows.
tvOS before 11.1.
Vulnerability Description A arbitrary code execution vulnerability has been discovered in Apple WebKit. The vulnerability is due to an error in Apple Webkit while handling certain Javascript method. A remote attacker could exploit this issue by enticing the target user to open a maliciously 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 / R76 / R75

  1. In the IPS tab, click Protections and find the Apple WebKit out-of-bounds read (CVE-2017-13784) 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 WebKit out-of-bounds read (CVE-2017-13784)

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