Check Point Advisories

Emerson Dixell Arbitrary File Write (CVE-2021-45420)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1117
Date Published:	13 Jun 2022
Severity:	Critical
Last Updated:	Monday 13 June, 2022
Source:
Industry Reference:	CVE-2021-45420
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Emerson Dixell XWEB-500
Vulnerability Description	An arbitrary file write vulnerability exists in Emerson Dixell. Successful exploitation of this vulnerability could result in denial of service and potentially code execution on the affected system.

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 Emerson Dixell Arbitrary File Write (CVE-2021-45420) 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: Web Server Enforcement Violation.
Attack Information: Emerson Dixell Arbitrary File Write (CVE-2021-45420)