Check Point Advisories

Microsoft Windows RPC Authentication Downgrade (MS16-047: CVE-2016-0128; CVE-2016-2118)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0273
Date Published:	3 Apr 2016
Severity:	Critical
Last Updated:	Monday 25 April, 2016
Source:
Industry Reference:	CVE-2016-0128 CVE-2016-2118
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows clients
Vulnerability Description	A security bypass vulnerability, also referred to as BadLock, exists in Microsoft Windows clients connecting to Samba Servers. The vulnerability is due to an authentication design weakness.

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

In the IPS tab, click Protections and find the Microsoft Windows RPC Authentication Downgrade (MS16-047: CVE-2016-0128) 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: MS-RPC Enforcement Violation.
Attack Information: Microsoft Windows RPC Authentication Downgrade (MS16-047: CVE-2016-0128)