Check Point Advisories

Ipswitch IMail Server IMAP SUBSCRIBE Command Stack Buffer Overflow (CVE-2007-2795)

Check Point Reference: CPAI-2007-301
Date Published: 12 Nov 2009
Severity: High
Last Updated: Thursday 12 November, 2009
Source:
Industry Reference:CVE-2007-2795
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Ipswitch IMail Server is a messaging service suite that supports numerous Internet standard electronic mail exchanging protocols. The IMail IMAP server is an implementation of the server side of the IMAP protocol. There exists a buffer overflow vulnerability in the way Ipswitch IMail Server handles SUBSCRIBE requests. The vulnerability is due to a lack of boundary protection while processing IMAP SUBSCRIBE command. 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 within the security context of the affected service, normally System. In a sophisticated attack where code injection is successful, the behaviour of the target is entirely dependent on the intended function of the injected code. The code in such a case would be executed within the security context of the affected service, which is normally the System account. In an attack case where code injection is not successful, the affected server will terminate and reset all established connection.

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 Ipswitch IMail Server IMAP SUBSCRIBE Command Stack 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:  Ipswitch IMail Server IMAP SUBSCRIBE Command stack buffer overflow

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