Check Point Advisories

MIT Kerberos kadmind Rename Principal Buffer Overflow (CVE-2007-2798)

Check Point Reference: CPAI-2007-288
Date Published: 25 Nov 2009
Severity: High
Last Updated: Wednesday 25 November, 2009
Source:
Industry Reference:CVE-2007-2798
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Kerberos is a protocol suite which allows for the negotiation of authenticated, and optionally encrypted, communication between two points on a network. MIT Kerberos V5 is an implementation of this protocol suite. There exists a stack buffer overflow vulnerability in the Kerberos Administration Server (kadmind). The vulnerability is due to an insufficient boundary check while handling requests to rename principals. A remote authenticated attacker can exploit this vulnerability by sending a specially crafted RPC request to the kadmind daemon. Successful exploitation may lead to execution of arbitrary code with root privileges on the target host. In an attack aiming for denial of service, the Kerberos kadmind service will terminate abnormally as a result of an attack. The Kerberos administration functionality remains unavailable until the service is restarted. In a more sophisticated attack scenario, where the malicious user is successful in injecting and executing supplied code, the behaviour of the system is dependent on the nature the injected code. Any code injected into the vulnerable component would execute in the security context of the service process, which may be system/root level.

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 MIT Kerberos kadmind Rename Principal Buffer Overflow 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:  SUN-RPC Enforcement Protection.
Attack Information:  MIT Kerberos kadmind rename principal buffer overflow

×
  Feedback
This website uses cookies for its functionality and for analytics and marketing purposes. By continuing to use this website, you agree to the use of cookies. For more information, please read our Cookies Notice.
OK