Check Point Advisories

Microsoft Windows TCP Denial of Service (MS14-031; CVE-2014-1811)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1691
Date Published:	3 Aug 2014
Severity:	High
Last Updated:	Tuesday 29 July, 2014
Source:	CVE-2014-1811
Protection Provided by:	Security Gateway 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 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 Windows and Windows Server. The vulnerability is due to TCP/IP stack failing to properly handle crafted packets. A remote unauthenticated attacker can exploit this vulnerability by sending crafted packets to the target system.
Update/Patch Avaliable	Apply patches from: MS14-031

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, Protection tab and select the version of your choice.

Security Gateway R77 / R76 / R75 / R71 / R70

In the IPS tab, click Protections and find the Microsoft Windows TCP Denial of Service (MS14-031) protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:

Attack Name:  TCP Enforcement Violation.
Attack Information:  Microsoft Windows TCP Denial of Service (MS14-031)