Check Point Advisories

Microsoft .NET Framework Denial of Service (MS16-019: CVE-2016-0033)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0009
Date Published:	9 Feb 2016
Severity:	Critical
Last Updated:	Sunday 06 March, 2016
Source:	Microsoft MS16-019
Industry Reference:	CVE-2016-0033
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows Vista Windows Server 2008 Windows Server 2008 R2 Windows 8 and Windows 8.1 Windows Server 2012 and Windows Server 2012 R2 Windows RT and Windows RT 8.1 Windows 10 Windows 7
Vulnerability Description	A Denial of Service vulnerability has been reported in the Microsoft .Net Framework. The vulnerability is due to an error in the way that Microsoft .Net Framework handles XSLT parsing component. A remote attacker could exploit this vulnerability by sending specially crafted data to the target server that uses .NET framework.
Update/Patch Avaliable	Apply patches from: MS16-019

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 / R75

In the IPS tab, click Protections and find the Microsoft .NET Framework Denial of Service (MS16-019: CVE-2016-0033) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: Microsoft .NET Framework Denial of Service (MS16-019: CVE-2016-0033)