Check Point Advisories

VPNFilter Client Malicious Self-Signed Certificate

Vulnerability
Protection

Check Point Reference:	CPAI-2018-0481
Date Published:	24 May 2018
Severity:	Critical
Last Updated:	Thursday 24 May, 2018
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	LINKSYS E1200 LINKSYS E2500 LINKSYS WRVS4400N QNAP TS251 QNAP TS439 Pro TP-LINK R600VPN MIKROTIK 1016 MIKROTIK 1036 MIKROTIK 1072 NETGEAR DGN2200 NETGEAR R6400 NETGEAR R7000 NETGEAR R8000 NETGEAR WNR1000 NETGEAR WNR2000
Vulnerability Description	VPNFilter is multi-stage malware that infects certain routers. It uses a custom SSL certificate in order to download data required to proceed to the second stage of the infection. Successful exploitation may lead to the device being compromised.

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 VPNFilter Client Malicious Self-Signed Certificate 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: Application Servers Protection Violation.
Attack Information: VPNFilter Client Malicious Self-Signed Certificate