Check Point Advisories

Microsoft SMB COPY Command Pathname Overflow (MS10-012; CVE-2010-0020)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-022
Date Published:	9 Feb 2010
Severity:	Critical
Last Updated:	Tuesday 10 November, 2015
Source:
Industry Reference:	CVE-2010-0020
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 remote code execution vulnerability has been reported in the Microsoft Windows Server Message Block (SMB) implementation. The vulnerability is due to an error in the Windows SMB server that fails to properly validate buffer lengths when processing the SMB COPY command. A remote attacker could exploit this flaw by constructing a specially crafted SMB message and sending it to an affected server. Successful exploitation may allow execution of arbitrary code on the target system.

Protection Overview

This protection will detect and block overly long SMB COPY commands.

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

In the IPS tab, click Protections and find the Microsoft SMB COPY Command Pathname Overflow (MS10-012) 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: Windows SMB Protection Violation.
Attack Information: Microsoft SMB COPY command pathname overflow (MS10-012)