Check Point Advisories

Linksys WRT54GL Buffer Overflow (CVE-2022-43970)

Vulnerability
Protection

Check Point Reference:	CPAI-2022-1149
Date Published:	29 Jan 2023
Severity:	High
Last Updated:	Sunday 29 January, 2023
Source:
Industry Reference:	CVE-2022-43970
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Linksys WRT54GL versions 4.30.18.006 and prior
Vulnerability Description	A buffer overflow vulnerability exists in Linksys WRT54GL. Successful exploitation of this vulnerability could result in a denial of service or execution of arbitrary code 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 Linksys WRT54GL Buffer Overflow (CVE-2022-43970) 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: Linksys WRT54GL Buffer Overflow (CVE-2022-43970)