Check Point Advisories

Microsoft Exchange Server IMAP Command Denial of Service (MS07-026; CVE-2007-0221)

Check Point Reference: CPAI-2012-113
Date Published: 26 Mar 2012
Severity: High
Last Updated: Friday 22 November, 2024
Source: CVE-2007-0221
Protection Provided by:

Security Gateway
R75
Who is Vulnerable? Microsoft Exchange Server 2000 SP2 and SP3
Vulnerability Description An integer overflow vulnerability has been reported in Microsoft Exchange Server.
Vulnerability DetailsThe vulnerability is due to an error when processing an invalid IMAP command that contains overly long verb literals. A remote attacker can exploit this flaw by sending specially crafted IMAP commands to an affected version of Microsoft Exchange Server. Successful exploitation will allow an attacker to create a denial of service condition or execute arbitrary code on an affected system.

Protection Overview

IPS will detect and block malformed IMAP commands sent to the server.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

Security Gateway R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Microsoft Exchange Server IMAP Command Denial of Service (MS07-026) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: IMAP Protocol Violation
Attack Information: Microsoft Exchange Server IMAP command denial of service (MS07-026)

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