Check Point Advisories

Siemens Tecnomatix FactoryLink SCADA CSService GetFile Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2011-275
Date Published:	29 May 2011
Severity:	Critical
Last Updated:	Sunday 29 May, 2011
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	Siemens Tecnomatix FactoryLink is a Supervisory Control and Data Acquisition (SCADA) system used for monitoring and controlling industrial processes. A buffer overflow vulnerability have been reported in Siemens Tecnomatix FactoryLink SCADA system. The vulnerability is due to a boundary error in Siemens Tecnomatix FactoryLink CSService while handling GetFile requests sent to the server. A remote attacker could exploit this issue by sending a specially crafted CSService GetFile message to the target server. Successful exploitation of this vulnerability would lead to stack buffer overflow that could lead to a denial of service condition and may lead to code injection and execution in the context of the affected server.

Protection Overview

This protection will detect and block specially crafted CSService GetFile messages to the target 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 / R71 / R70

In the IPS tab, click Protections and find the Siemens Tecnomatix FactoryLink SCADA CSService GetFile Buffer Overflow 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 CSService GetFile buffer overflow