Check Point Advisories

Omron CX-One CX-Position NCI File Stack Buffer Overflow (CVE-2021-27413)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1741
Date Published:	10 May 2023
Severity:	High
Last Updated:	Wednesday 10 May, 2023
Source:
Industry Reference:	CVE-2021-27413
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 OMRON CX-One CX-Position module. The vulnerability is due to input validation error when processing B_PLC_NAME parameter of the NCI configuration file.

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

In the IPS tab, click Protections and find the Omron CX-One CX-Position NCI File Stack Buffer Overflow (CVE-2021-27413) 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: Content Protection Violation.
Attack Information: Omron CX-One CX-Position NCI File Stack Buffer Overflow (CVE-2021-27413)