Check Point Advisories

Rockwell Automation MicroLogix 1400 and 1756 ControlLogix Denial of Service (CVE-2018-17924)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0264
Date Published:	25 Feb 2019
Severity:	High
Last Updated:	Monday 25 February, 2019
Source:
Industry Reference:	CVE-2018-17924
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft MicroLogix 1400 Controllers Series A, all versions Microsoft MicroLogix 1400 Controllers Series B, V21.003 and earlier Microsoft MicroLogix 1400 Controllers Series C, V21.003 and earlier Microsoft ControlLogix 1756-ENBT, All Versions Microsoft ControlLogix 1756-EWEB, Series A, B, All Versions Microsoft ControlLogix 1756-EN2F, Series A, B, All Versions Microsoft ControlLogix 1756-EN2F, Series C, V10.10 and earlier Microsoft ControlLogix 1756-EN2T, Series A, B, C, All Versions Microsoft ControlLogix 1756-EN2T, Series D, V10.10 and earlier Microsoft ControlLogix 1756-EN2TR, Series A, B, All Versions Microsoft ControlLogix 1756-EN2TR, Series C, V10.10 and earlier Microsoft ControlLogix 1756-EN3TR, Series A, All Versions Microsoft ControlLogix 1756-EN3TR, Series B, V10.10 and earlier
Vulnerability Description	A denial of service vulnerability exists in Rockwell MicroLogix 1400 Controllers and 1756 ControlLogix Ethernet/IP Communications Modules. An unauthenticated, remote attacker could exploit this vulnerability by sending a specially crafted CIP connection request packet to an affected device, causing a system crash.

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 Rockwell Automation MicroLogix 1400 and 1756 ControlLogix Denial of Service (CVE-2018-17924) 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: SCADA Protection Violation.
Attack Information: Rockwell Automation MicroLogix 1400 and 1756 ControlLogix Denial of Service (CVE-2018-17924)