Check Point Advisories

Digium Asterisk PJSIP Channel Driver REGISTER Denial-of-Service

Vulnerability
Protection

Check Point Reference:	CPAI-2024-1067
Date Published:	26 Nov 2024
Severity:	Medium
Last Updated:	Tuesday 26 November, 2024
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Digium Asterisk Open Source 13.x Digium Certified Asterisk 13.1
Vulnerability Description	A denial-of-service vulnerability exists in Digium Asterisk PJSIP Channel Driver REGISTER. 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 Digium Asterisk PJSIP Channel Driver REGISTER Denial-of-Service 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: VoIP Enforcement Violation.
Attack Information: Digium Asterisk PJSIP Channel Driver REGISTER Denial-of-Service