ST. LOUIS -- (BUSINESS WIRE) -- Belden Inc. (NYSE: BDC), a global leader in signal transmission solutions for mission-critical applications, announces that its Tofino Security brand has published new research showing that patching is often ineffective in providing protection from the multitude of vulnerability disclosures and malware targeting critical infrastructure systems today. While patching such systems is important as part of an overall Defense in Depth strategy, the difficulties of patching for industrial systems mean that compensating controls such as Tofino Security Profiles are often a better method of providing immediate protection.
Since the discovery of the Stuxnet malware in 2010, industrial infrastructure has become a key target for security researchers, hackers, and government agents. Designed years ago with a focus on reliability and safety, rather than security, Supervisory Control and Data Acquisition (SCADA) and Industrial Control Systems (ICS) products are often easy to exploit. As a result, there has been exponential growth in government security alerts for these systems in the past two years. In addition, they have attracted some of the most sophisticated (Stuxnet, Night Dragon, Flame) and damaging (Shamoon) cyberattacks on record.
Eric Byres, CTO and vice president of engineering at Tofino Security, investigated the effectiveness of patching for protecting control systems from vulnerability exploits and malware. His work revealed that:
When patching is not possible, or while waiting for a semi-annual or annual shutdown to install patches, an alternative is to deploy a workaround, also known as a ‘compensating control’. Compensating controls do not correct the underlying vulnerability; instead, they help block known attack vectors. Examples of compensating controls include product reconfigurations, applying suggested firewall rules, or installing signatures that recognize and block malware.
Another compensating control is Tofino Security Profiles, available in Belden’s Tofino Security product line. Tofino Security Profiles are rule and protocol definitions that address newly disclosed vulnerabilities. They provide a simple way for automation system vendors to create and securely distribute malware protection. Operators benefit from a single, easy-to-deploy package of tailored rules that can be installed without impacting operations. The result is that critical industrial infrastructure facilities can quickly and effectively defend themselves against new threats.
“My research highlights the multiple challenges with patching for SCADA and ICS systems,” remarked Eric Byres. “To secure facilities, critical infrastructure operators should pursue a Defense in Depth strategy that includes patching when possible, and use compensating controls for protection when patching is not possible.”
Starting today, Belden is publishing a series of blog articles on its patching research and is accompanying them with useful documents. These documents include:
Visit: http://www.tofinosecurity.com/blog/scada-security-welcome-patching-treadmill for the first blog article.
Tofino Security provides practical and effective industrial network security and SCADA security products that are simple to implement and that do not require plant shutdowns. Its products include configurable security appliances with a range of loadable security modules plus fixed function security appliances made for specific automation vendor applications. Tofino Security products protect zones of equipment on the plant floor, and are complementary to Belden’s Hirschmann brand, which leads industrial networking solutions. Both groups service and secure industrial networks in the oil and gas, utilities, transportation and automation industries. www.tofinosecurity.com
St. Louis-based Belden Inc. designs, manufactures, and sells connectivity solutions for markets including industrial, enterprise, and broadcast. It has approximately 6,700 employees, and has manufacturing capabilities in North America, South America, Europe, and Asia, and a market presence in nearly every region of the world. Belden was founded in 1902, and today is a leader with some of the strongest brands in the signal transmission industry. For more information, visit www.belden.com.
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