Check Point Advisories

Digium Asterisk IAX2 POKE Request Denial of Service (CVE-2008-3263)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-1140
Date Published:	7 Jan 2013
Severity:	Critical
Last Updated:	Thursday 09 January, 2025
Source:	CVE-2008-3263
Protection Provided by:	Security Gateway R70 R71 R75
Who is Vulnerable?	Digium Asterisk Appliance Developer Kit 0.x.x Digium Asterisk Business Edition A.x.x.x Digium Asterisk Business Edition B.x.x.x prior to B.2.5.3 Digium Asterisk Business Edition C.x.x.x prior to C.1.10.2 Digium Asterisk Open Source 1.4.x prior to 1.4.21.2 Digium Asterisk Open Source 1.2.x prior to 1.2.30 Digium Asterisk Open Source 1.0.x Digium s800i (Asterisk Appliance) prior to 1.2.0.1
Vulnerability Description	A denial of service vulnerability has been reported in Digium Asterisk.
Vulnerability Details	The vulnerability is due to an error while handling specially crafted messages. A remote attacker can exploit this vulnerability by sending crafted messages to the target server. Successful exploitation would result in a denial of service condition.

Protection Overview

IPS will detect and block the transferring of specially crafted messages to the target server.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

Security Gateway R75 / R71 / R70

In the IPS tab, click Protections and find the Digium Asterisk IAX2 POKE Request Denial of Service protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: VoIP Enforcement Violation
Attack Information: Digium Asterisk IAX2 POKE Request Denial of Service