Check Point Advisories

Microsoft Windows SChannel Denial Of Service (MS14-066; CVE-2014-6321)

Check Point Reference: CPAI-2014-2220
Date Published: 25 Nov 2014
Severity: Critical
Last Updated: 3 Dec 2017
Source: Microsoft Security Bulletin MS14-066
Industry Reference:CVE-2014-6321
Protection Provided by:

Security Gateway
R80, R77, R76, R75, R71, R70

Who is Vulnerable? Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows 8.1
Microsoft Windows RT
Microsoft Windows RT 8.1
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Vulnerability Description A denial of service vulnerability exists in Microsoft SChannel. The vulnerability is due to improper processing of specially crafted packets that leads to a denial of service. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted packets to the target machine.
Update/Patch AvaliableApply patches from: MS14-066

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 / R76 / R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Microsoft Windows SChannel Denial Of Service (MS14-066) 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:  SSL Enforcement Violation.
Attack Information:  Microsoft Windows SChannel Denial Of Service (MS14-066)

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