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Check Point Advisories

Microsoft Windows HTTP Services Chunked Encoding Integer Overflow (MS09-013; CVE-2009-0086)

Check Point Reference: CPAI-2012-161
Date Published: 24 Apr 2012
Severity: High
Last Updated: 25 Dec 2017
Industry Reference:CVE-2009-0086
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable?
Vulnerability Description A remote code execution vulnerability has been reported in Microsoft Windows HTTP services. The vulnerability is due to the WinHTTP incomplete validation of a parameter returned by a remote web server. A remote attacker may exploit this issue by enticing an affected user to connect to a malicious HTTP server. Successful exploitation may allow the attacker to execute arbitrary code on an affected system.

Protection Overview

This protection will detect and block specially crafted web server responses.

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

  1. In the IPS tab, click Protections and find the Microsoft Windows HTTP Services Chunked Encoding Integer Overflow (MS09-013) 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 Windows HTTP Services chunked encoding integer overflow (MS09-013)

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