Check Point Advisories

MIT Kerberos V5 KDC TCP Handling Denial of Service (CVE-2005-1174)

Check Point Reference: CPAI-2013-2942
Date Published: 16 Sep 2013
Severity: Critical
Last Updated: Monday 07 October, 2013
Source:
Industry Reference:CVE-2005-1174
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description A heap corruption vulnerability has been reported in the MIT Kerberos V5 Key Distribution Center (KDC)
implementation. The vulnerability is caused due to improper handling of an error case that results in heap
corruption. An unauthenticated remote attacker can leverage this vulnerability to cause a denial of service
or to execute arbitrary code, potentially compromising an entire Kerberos realm.

Protection Overview

The 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 MIT Kerberos V5 KDC TCP Handling Denial of Service 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:  Application Servers Protection Violation.
Attack Information:  MIT Kerberos V5 KDC TCP Handling Denial of Service

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