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Check Point Advisories

Rockwell Automation MicroLogix 1100 Denial of Service (CVE-2017-7924)

Check Point Reference: CPAI-2019-0399
Date Published: 24 Mar 2019
Severity: High
Last Updated: 31 Mar 2019
Industry Reference:CVE-2017-7924
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? 1763-L16BWA
Vulnerability Description A denial of service vulnerability exists in Rockwell MicroLogix 1100 controllers. An unauthenticated, remote attacker could exploit this vulnerability by sending a specially crafted CIP 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

  1. In the IPS tab, click Protections and find the Rockwell Automation MicroLogix 1100 Denial of Service (CVE-2017-7924) 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:  SCADA Protection Violation.
Attack Information:  Rockwell Automation MicroLogix 1100 Denial of Service (CVE-2017-7924)

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