Check Point Advisories

Schneider Electric C-Bus Toolkit Authentication Bypass (CVE-2021-22784)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2203
Date Published:	27 Aug 2024
Severity:	Medium
Last Updated:	Tuesday 27 August, 2024
Source:
Industry Reference:	CVE-2021-22784
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Schneider Electric C-Bus Toolkit prior to 1.15.9
Vulnerability Description	An authentication bypass vulnerability exists in Schneider Electric C-Bus Toolkit. Successful exploitation of this vulnerability would allow remote attackers to gain unauthorized access into 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 Schneider Electric C-Bus Toolkit Authentication Bypass (CVE-2021-22784) 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: SCADA Protection Violation.
Attack Information: Schneider Electric C-Bus Toolkit Authentication Bypass (CVE-2021-22784)