Check Point Advisories

Omron CX-One Stack Buffer Overflow (CVE-2020-27261)

Check Point Reference: CPAI-2020-3393
Date Published: 26 Aug 2021
Severity: High
Last Updated: Sunday 12 September, 2021
Industry Reference:CVE-2020-27261
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? CX-One
CX-One CX-Server
Vulnerability Description A stack-based overflow exists in the CX-Position module of OMRON CX-One. The vulnerability is due to input validation error when processing NCI configuration files.

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 R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Omron CX-One Stack Buffer Overflow (CVE-2020-27261) 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:  Content Protection Violation.
Attack Information:  Omron CX-One Stack Buffer Overflow (CVE-2020-27261)

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