Check Point Advisories

Citadel SMTP RCPT Remote Buffer Overflow - High Confidence (CVE-2008-0394)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-247
Date Published:	28 May 2013
Severity:	Critical
Last Updated:	Wednesday 18 December, 2013
Source:
Industry Reference:	CVE-2008-0394
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The Citadel Server is a mail server product geared towards small and medium size organizations. The product implements POP3, IMAP4, and SMTP services. The SMTP server module is installed and started in a default installation. There exists a buffer overflow vulnerability in Citadel SMTP Server. The vulnerability is due to insufficient boundary check when processing user provided data. Remote attackers could exploit this vulnerability by supplying a specially crafted RCPT command to the server. Successful exploitation of this vulnerability allows remote attackers execute arbitrary code with the privileges of the affected application. In a simple attack case aimed at creating a denial of service condition, the affected process will terminate. 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 of the injected code. Any code injected into the vulnerable component would execute in the security context of the service process.

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 Citadel SMTP RCPT Remote Buffer Overflow - High Confidence 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: Citadel SMTP RCPT Remote Buffer Overflow - High Confidence