Check Point Advisories

Rockwell Automation RSLinx Classic Buffer Overflow (CVE-2018-14821)

Check Point Reference: CPAI-2018-1077
Date Published: 13 Nov 2018
Severity: High
Last Updated: Monday 19 November, 2018
Source:
Industry Reference:CVE-2018-14821
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Rockwell Automation RSLinx Classic Version 3.60
Rockwell Automation RSLinx Classic Version 3.74
Rockwell Automation RSLinx Classic Version 3.80
Rockwell Automation RSLinx Classic Version 3.81
Rockwell Automation RSLinx Classic Version 3.90.01
Rockwell Automation RSLinx Classic Version 4.00.01
Rockwell Automation RSLinx Classic Version 4.0.1.2
Vulnerability Description A buffer overflow vulnerability exists in Rockwell Automation RSLinx Classic. The vulnerability is due to incorrect handling of malformed EtherNet/IP packets. A successful exploitation of the vulnerability could lead to 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 RSLinx Classic Buffer Overflow (CVE-2018-14821) 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 RSLinx Classic Buffer Overflow (CVE-2018-14821)

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