Check Point Advisories

Siemens Tecnomatix FactoryLink SCADA VRN Server Multiple Buffer Overflows

Vulnerability
Protection

Check Point Reference:	CPAI-2011-374
Date Published:	16 Aug 2011
Severity:	Critical
Last Updated:	Tuesday 16 August, 2011
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Multiple buffer overflow vulnerabilities have been reported in Siemens Tecnomatix FactoryLink VRN Server SCADA system. The vulnerabilities are due to a boundary error in the application's VRN Server, which occurs while handling incoming message requests. A remote attacker could leverage these vulnerabilities by sending malicious messages to the target VRN server. Successful exploitation may allow an attacker to create a DoS condition or to execute arbitrary code in the security context of the affected server.

Protection Overview

This protection will detect and block attempts to transfer malicious messages to the server.

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 Siemens Tecnomatix FactoryLink SCADA VRN Server Multiple Buffer Overflows 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: Siemens Tecnomatix FactoryLink SCADA VRN Server multiple buffer overflows