Check Point Advisories

Ipswitch IMail Server Imailsec.dll Heap Buffer Overflow (CVE-2007-2795)

Check Point Reference: CPAI-2007-300
Date Published: 9 Nov 2009
Severity: High
Last Updated: Monday 09 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 a server-side implementation of the IMAP protocol. There exists a heap overflow vulnerability in Ipswitch IMail Server IMAP component. The vulnerability is due to a lack of boundary protection within the Imailsec.dll library while processing IMAP LOGIN command. A remote unauthenticated 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 more 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. 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 Imailsec.dll Heap 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 Imailsec.dll heap buffer overflow

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