Check Point Advisories

CHiyu IoT Devices Integer Overflow (CVE-2021-31642)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1744
Date Published:	17 May 2023
Severity:	Medium
Last Updated:	Wednesday 17 May, 2023
Source:
Industry Reference:	CVE-2021-31642
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	CHiyu BioSense firmware version up to 6.2021 CHiyu WebPass firmware version up to 6.2021 CHiyu BF-630 firmware version up to 6.2021 CHiyu BF-631 firmware version up to 6.2021 CHiyu SEMAC firmware version up to 6.2021
Vulnerability Description	An integer overflow vulnerability exists in CHiyu IoT Devices. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code 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 CHiyu IoT Devices Integer Overflow (CVE-2021-31642) 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: Application Servers Protection Violation.
Attack Information: CHiyu IoT Devices Integer Overflow (CVE-2021-31642)