Check Point Advisories

Cisco Secure Access Control Server UCP Application Buffer Overflow (CVE-2008-0532)

Check Point Reference: CPAI-2008-268
Date Published: 30 Sep 2009
Severity: Critical
Last Updated: Wednesday 30 September, 2009
Source:
Industry Reference:CVE-2008-0532
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Cisco Secure Access Control Server provides authentication, authorization, and accounting (AAA) services to network devices that control client access to the network. Such devices include network access servers, PIX firewalls, wireless access points, routers and switches. A buffer overflow vulnerability exists in Cisco User-Changeable Password (UCP) application that is used by Cisco Secure Access Control Server (ACS) and other products. The vulnerability is due to insufficient input validation in the executable file CSuserCGI.exe. Remote unauthenticated attackers could leverage this vulnerability to execute arbitrary code with the privileges of the affected product, or cause a denial of service condition. In an attack case where code injection is not successful, the affected application will terminate abnormally. In a more sophisticated attack where code injection is successful, the behaviour of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the affected service.

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 Cisco Secure Access Control Server UCP Application 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:  Cisco Protection Violation.
Attack Information:  Cisco Secure Access Control Server UCP application buffer overflow

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