Check Point Advisories

Ivanti Avalanche Denial of Service (CVE-2021-22962)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2111
Date Published:	25 Feb 2024
Severity:	Critical
Last Updated:	Monday 16 December, 2024
Source:
Industry Reference:	CVE-2021-22962
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Ivanti Avalanche prior to 6.4.2
Vulnerability Description	A denial-of-service vulnerability exists in Ivanti Avalanche. 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 Ivanti Avalanche Denial of Service (CVE-2021-22962) 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: Ivanti Avalanche Denial of Service (CVE-2021-22962)