Check Point Advisories

Atrium Software MERCUR IMAPD NTLMSSP Command Handling Memory Corruption (CVE-2007-1578)

Check Point Reference: CPAI-2007-247
Date Published: 6 Jun 2010
Severity: Critical
Last Updated: Sunday 06 June, 2010
Source:
Industry Reference:CVE-2007-1578
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description The Internet Message Access Protocol (IMAP) specifies a method 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 Atrium MERCUR IMAP service is an implementation of the server side of the IMAP protocol. There exists a memory corruption vulnerability in Atrium MERCUR IMAP service. The vulnerability is due to an insufficient checks when processing IMAP NTLMSSP data within the IMAP service of MERCUR Messaging software. Successful exploitation of this vulnerability allows remote attackers to create a Denial of Service condition or execute arbitrary code on the vulnerable system in the context of the affected application, commonly System. In case of an attack where code injection is not successful, the affected IMAP service will terminate upon processing of the malicious message. If the IMAP service is not configured to restart automatically, the service will be unavailable until the process is restarted manually. In case of an attack where code injection and exexution is successful, the behavior of the target host 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 System account.

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 Atrium Software MERCUR IMAPD NTLMSSP Command Handling Memory Corruption 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:  Atrium software MERCUR IMAPD NTLMSSP command handling memory corruption

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