Check Point Advisories

Alt-N MDaemon IMAP Server FETCH Command Buffer Overflow (CVE-2008-1358)

Check Point Reference: CPAI-2008-270
Date Published: 30 Dec 2009
Severity: High
Last Updated: Wednesday 30 December, 2009
Source:
Industry Reference:CVE-2008-1358
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description The Internet Message Access Protocol (IMAP) allows for the access and manipulation of electronic mails. 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 MDaemon IMAP server is a server side implementation of the IMAP protocol. There exists a stack buffer overflow vulnerability in the way Alt-N MDaemon Server handles IMAP requests. The vulnerability is due to a lack of boundary protection while processing IMAP FETCH commands. A remote authenticated attacker may exploit this vulnerability to cause a denial of service condition or inject and execute arbitrary code on the vulnerable system. In case of an attack where code injection is not successful, the affected server will terminate and reset all established connections. In case of a more sophisticated attack where code injection is successful, the behavior of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the affected service, 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 Alt-N MDaemon IMAP Server FETCH 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:  Alt-N MDaemon IMAP Server FETCH command buffer overflow

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