Check Point Advisories

Microsoft SMB Server Race Condition Denial of Service (MS10-012; CVE-2010-0021)

Check Point Reference: CPAI-2010-023
Date Published: 1 Feb 2010
Severity: High
Last Updated: Tuesday 09 February, 2010
Source:
Industry Reference:CVE-2010-0021
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description The SMB Protocol is a network file sharing protocol that is implemented in Microsoft Windows. A denial of service vulnerability has been reported in the Microsoft Windows Server Message Block (SMB) implementation. The vulnerability is due to a race condition in a driver that is part of the SMB stack in Windows. A remote attacker could exploit this flaw via a specially crafted SMB request. Successful exploitation could cause a denial of service condition on the target system.

Protection Overview

This protection will detect and block malformed SMB requests attempting 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 SMB Server Race Condition Denial of Service (MS10-012) 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:  Windows SMB Protection Violation.
Attack Information:  Microsoft SMB server race condition denial of service (MS10-012)

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