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Digium Asterisk Skinny Channel Driver Heap Buffer Overflow (CVE-2012-2415)

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Check Point Reference: CPAI-2012-278
Date Published:
Severity:
Source: AST-2012-005
Industry Reference(s): CVE-2012-2415
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Digium Asterisk Open Source 1.6.x prior to 1.6.2.24
Vulnerability Description
A heap buffer overflow vulnerability has been reported in Digium Asterisk.
Vulnerability Details
The vulnerability is due to a bounds checking error while processing certain events in the Skinny channel driver. A remote attacker can exploit this vulnerability by sending a sequence of messages to the target. Successful exploitation would allow an attacker to execute code on the target system.

Protection Overview
This protection will detect and block a sequence of messages sent to the 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.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?

  1. In the IPS tab, click Protections and find the Digium Asterisk Skinny Channel Driver Heap Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: VoIP Enforcement Violation
Attack Information: Digium Asterisk Skinny Channel Driver Heap Buffer Overflow