Check Point Advisories

Digium Asterisk HTTP Management Interface Stack Overflow (CVE-2012-5976; CVE-2013-2686)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-029
Date Published:	20 Jan 2013
Severity:	High
Last Updated:	Monday 25 November, 2013
Source:
Industry Reference:	CVE-2012-5976 CVE-2013-2686
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A stack overflow vulnerability has been reported in Digium Asterisk. The vulnerability is due to an unchecked memory allocation on the stack, which can result in a stack overflow or writing of attacker-controlled data to arbitrary memory locations. A remote attacker can use this vulnerability by sending a malicious request to a vulnerable Asterisk server.

Protection Overview

This protection will detect and block 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 R80 / R77 / R75

In the IPS tab, click Protections and find the Digium Asterisk HTTP Management Interface Stack Overflow 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: Digium Asterisk HTTP Management Interface Stack Overflow