Check Point Advisories

MailEnable IMAP STATUS Command Buffer Overflow (CVE-2005-2278)

Check Point Reference: CPAI-2005-269
Date Published: 4 Nov 2009
Severity: High
Last Updated: Wednesday 04 November, 2009
Source:
Industry Reference:CVE-2005-2278
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description The Internet Message Access Protocol (IMAP) specifies a protocol for the access and manipulation of electronic mail. The protocol permits the manipulation of mailboxes on a remote server and allows a remote client, among other operations, to create, delete, or rename mailboxes on the server side. The MailEnable IMAP server is an implementation of the server side of the IMAP protocol. There exists a stack buffer overflow vulnerability in the MailEnable IMAP service. The vulnerability is caused by the improper handling of boundary conditions when parsing crafted IMAP commands. An authenticated remote attacker can exploit this vulnerability to execute arbitrary code with System level privileges. In a simple attack case aimed at creating a denial of service condition, the affected IMAP service will terminate. If the service is not configured to restart automatically, the service will be unavailable until it is restarted manually. In a sophisticated attack scenario where the malicious user 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

  1. In the IPS tab, click Protections and find the MailEnable IMAP STATUS Command Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  IMAP Protocol Violation.
Attack Information:  MailEnable IMAP STATUS command buffer overflow

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