Two newly discovered vulnerabilities have been classified with a maximum CVSS Score of 10 and users of Schneider Electric ETG3000 FactoryCast HMI Gateway should take immediate action to protect SCADA systems from attack.

The vulnerabilities concern hard-coded FTP credentials, assigned CVE-2014-9198, which effectively bypasses any authentication requirement for access. At the same time, a critical Java configuration file - rde.jar - has been found to be accessible without authentication, potentially allowing the gateway configuration to be overridden. This latter vulnerability has been assigned CVE-2014-9197.

Remediation and mitigation advice has already been provided, requiring a firmware upgrade for the gateway.

For NERC CIP Version 5 compliance maintaining cyber security is of paramount importance and the protection of SCADA and other BES systems is essential. As more emphasis is placed on critical infrastructure protection it is inevitable that more vulnerabilities will be discovered, and in turn, sharpening the classic 'double-edged sword' of vulnerability management: as soon as a vulnerability is discovered and understood, remediation or mitigation steps can be provided, however, the disclosure process also makes the vulnerability widely known to would-be attackers too, compounding and increasing the threat.

Correct operation of NERC CIP-007-3 compliance would have identified the use of FTP for the gateway. The CIP-007 requirement questions the necessity of any open ports such as this and where the service or port is deemed essential, compensating security controls should be implemented. So in this example, internal firewalling in line with CIP-005-5 compliance should have been operated to ensure that only controlled, limited access to the FTP service was allowed - often the use of a 'jump server' is a good idea to limit access to only specified devices and IP addresses, providing extra layers of access control.

For more background to the vulnerabilities CVE-2014-9197 and CVE-2014-9198, and the remediation advice see the ICS-CERTAdvisory (ICSA-15-020-02) 

 

NNT Products
USA Offices
New Net Technologies LLC
Naples
Suite #10115, 9128 Strada Place
Naples, Florida, 34108
Atlanta
201 17th Street, Suite 300
Atlanta, Georgia, 30363.

Tel: 1-888-898-0674
email [email protected]
UK Office
New Net Technologies LLC
Rivers Lodge
West Common
Harpenden
Hertfordshire
AL5 2JN

Tel: 01582 287310
email [email protected]
Connect
Google+ Linkedin Twitter - Change Tracker Facebook rss feed YouTube
CIS benchmarking SEWP Cybersecurity 500 Sans Institute
Copyright 2017, New Net Technologies LLC. All rights reserved. 
NNT and Change Tracker are registered trademarks of New Net Technologies LLC.
All other product, company names and trademarks are the property of their respective owners.