Check Point Advisories

VPNFilter Client Malicious Self-Signed Certificate

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

  1. 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.
  2. 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

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