Check Point Advisories

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

Vulnerability
Protection

Check Point Reference:	CPAI-2013-2918
Date Published:	8 Oct 2013
Severity:	High
Last Updated:	Saturday 04 January, 2025
Source:	CVE-2013-3860
Protection Provided by:	Security Gateway R70 R71 R75
Who is Vulnerable?	Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.5 Microsoft .NET Framework 3.5 Service Pack 1 Microsoft .NET Framework 3.5.1
Vulnerability Description	A denial of service vulnerability exists in the .NET Framework.
Update/Patch Avaliable	Apply patches from: MS13-082
Vulnerability Details	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, Protection tab and select the version of your choice.

Security Gateway R75 / R71 / R70

In the IPS tab, click Protections and find the Microsoft .NET Framework Entity Expansion Denial of Service (MS13-082) 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: Content Protection Violation
Attack Information: Microsoft .NET Framework Entity Expansion Denial of Service (MS13-082)