Check Point Advisories

MIT Kerberos 5 kadmind KADM5_POLICY Denial of Service (CVE-2015-8630)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0589
Date Published:	11 Jul 2016
Severity:	Medium
Last Updated:	Sunday 13 November, 2016
Source:	MIT
Industry Reference:	CVE-2015-8630
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	MIT Kerberos 5 1.12 - 1.14
Vulnerability Description	A denial-of-service vulnerability exists in the MIT Kerberos 5 kadmind service. The vulnerability is due to a NULL pointer dereference when processing policy value. A remote, authenticated user who has permission to modify a principal entry can exploit this vulnerability by sending maliciously crafted data that will cause the kadmin service to terminate.

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

In the IPS tab, click Protections and find the MIT Kerberos 5 kadmind KADM5_POLICY Denial of Service protection using the Search tool and Edit the protection's settings.
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 5 kadmind KADM5_POLICY Denial of Service