Check Point Advisories

Schneider Electric C-Bus Toolkit Information Disclosure (CVE-2021-22720)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1433
Date Published:	29 Nov 2022
Severity:	High
Last Updated:	Tuesday 29 November, 2022
Source:
Industry Reference:	CVE-2021-22720
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	C-Bus Toolkit V1.15.7 and prior
Vulnerability Description	A directory traversal vulnerability exists in Schneider Electric C-Bus Toolkit. The vulnerability is due to improper input validation.

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 Schneider Electric C-Bus Toolkit Information Disclosure (CVE-2021-22720) 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: Schneider Electric C-Bus Toolkit Information Disclosure (CVE-2021-22720)