Check Point Advisories

Microsoft Windows SMB2 Tree Connect Response Denial of Service (MS17-012: CVE-2017-0016)

Check Point Reference: CPAI-2017-0088
Date Published: 2 Feb 2017
Severity: High
Last Updated: Wednesday 03 May, 2017
Source: Microsoft MS17-012
Industry Reference:CVE-2017-0016
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012 R2
Windows RT 8.1
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016 for x64-based Systems
Vulnerability Description A denial of service vulnerability has been reported in Microsoft Windows SMB2. The vulnerability is due to insufficient sanitization over SMB2 Tree Connect response messages.
Update/Patch AvaliableApply patches from: MS17-012

Protection Overview

This protection detects 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

  1. In the IPS tab, click Protections and find the Microsoft Windows SMB2 Tree Connect Response Denial of Service (MS17-012: CVE-2017-0016) 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 SMB2 Tree Connect Response Denial of Service (MS17-012: CVE-2017-0016)

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