Check Point Advisories

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

Vulnerability
Protection

Check Point Reference:	CPAI-2013-2942
Date Published:	27 Oct 2013
Severity:	High
Last Updated:	Saturday 04 January, 2025
Source:	CVE-2005-1174
Protection Provided by:	Security Gateway R75
Who is Vulnerable?	MIT Kerberos Project Kerberos
Vulnerability Description	There exists a heap corruption vulnerability in the MIT Kerberos V5 Key Distribution Center (KDC) implementation.
Vulnerability Details	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 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

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.
Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: Application Servers Protection Violation
Attack Information: MIT Kerberos V5 KDC TCP Handling Denial of Service