Check Point Advisories

Ipswitch IMail Server SMTP Service Buffer Overflow (CVE-2006-4379)

Vulnerability
Protection

Check Point Reference:	CPAI-2006-290
Date Published:	25 Nov 2009
Severity:	High
Last Updated:	Monday 19 October, 2015
Source:
Industry Reference:	CVE-2006-4379
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The Ipswitch IMail Server is a mail server product geared towards medium to large size organizations. It contains implementations of POP3, IMAP4, and SMTP servers. The SMTP server module is installed and started in a default installation. There exists a vulnerability in the SMTP module of the Ipswitch IMail server. The vulnerability is due to insufficient sanitization of command arguments supplied to the service, which may lead to a buffer overflow condition. An unauthenticated attacker can exploit this flaw by sending crafted commands to the target server, thereby injecting and executing arbitrary code with the privileges of the server. In a simple attack case aimed at creating a denial of service condition, the affected process will terminate. Only the functionality of the SMTP service will be affected by this condition. If the IMail SMTP service is not configured to restart automatically, the services will be unavailable until the process is restarted manually. In a sophisticated attack scenario where the attacker is successful in injecting and executing supplied code, the behaviour of the system is dependent on the nature the injected code. Any code injected into the vulnerable component would execute in the security context of the service process, normally System.

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 Ipswitch IMail Server SMTP Service Buffer 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: SMTP Protection Violation.
Attack Information: Ipswitch IMail server SMTP service buffer overflow