Check Point Advisories

Microsoft Windows WRITE_ANDX SMB Processing Denial of Service (CVE-2008-4114)

Check Point Reference: CPAI-2008-220
Date Published: 29 Jan 2009
Severity: Critical
Last Updated: Sunday 04 November, 2012
Source:
Industry Reference:CVE-2008-4114
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 denial of service vulnerability was reported in Microsoft Windows. Windows fails to properly handle crafted Server Message Block (SMB) packets. SMB is Microsoft Windows native networking protocol, used for file sharing, network printing, and remote procedure calls. By sending a crafted SMB packet to the target system, a remote attacker may cause the system to stop responding, ultimately denying service to legitimate users.

Protection Overview

This protection will detect and block malformed SMB WRITE_ANDX requests.

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 Windows WRITE_ANDX SMB Processing Denial of Service 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 Windows WRITE_ANDX SMB Processing Denial of Service

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