Check Point Advisories

Microsoft .NET Framework Type Verification Error (MS09-061; CVE-2009-0090; CVE-2009-0091)

Check Point Reference: CPAI-2009-270
Date Published: 3 Nov 2009
Severity: High
Last Updated: Sunday 30 July, 2017
Source:
Industry Reference:CVE-2009-0090
CVE-2009-0091
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description The Microsoft .NET Framework is a software framework that includes a large library of coded solutions to common programming problems and a virtual machine that manages the execution of programs written specifically for the framework. A remote code execution vulnerability exists in the Microsoft .NET Framework. An attacker could exploit this issue by casting an object of one type into another, allowing execution of arbitrary code remotely.

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 / R71 / R70 / R65

  1. In the IPS tab, click Protections and find the Microsoft .NET Framework Type Verification Error (MS09-061) protection using the Search tool and Edit the protection's settings.
  2. 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 Type Verification Error (MS09-061)

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