Check Point Advisories

Cisco Small Business Routers Denial Of Service (CVE-2021-1167)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0022
Date Published:	22 Feb 2021
Severity:	High
Last Updated:	Monday 22 February, 2021
Source:
Industry Reference:	CVE-2021-1167
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Cisco Small Business RV110W Cisco Small Business RV130 Cisco Small Business RV130W Cisco Small Business RV215W
Vulnerability Description	A denial of service vulnerability exists in Cisco Small Business routers. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition 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 Cisco Small Business Routers Denial Of Service (CVE-2021-1167) 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: Cisco Small Business Routers Denial Of Service (CVE-2021-1167)