Check Point Advisories

Microsoft .NET Framework Entity Expansion Denial of Service (MS13-082) - Ver2 (CVE-2013-3860)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0761
Date Published:	18 May 2015
Severity:	High
Last Updated:	Monday 18 May, 2015
Source:
Industry Reference:	CVE-2013-3860
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A denial of service vulnerability exists in the .NET Framework. The vulnerability is caused when the .NET Framework attempts to parse a specially crafted document type definition (DTD) for XML data when an XML digital signature is validated. An attacker who successfully exploited this vulnerability could cause the server to crash or become unresponsive.

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 Entity Expansion Denial of Service (MS13-082) - Ver2 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: Content Protection Violation.
Attack Information: Microsoft .NET Framework Entity Expansion Denial of Service (MS13-082) - Ver2