Facebook Google Plus Twitter LinkedIn YouTube RSS Menu Search Resource - BlogResource - WebinarResource - ReportResource - Eventicons_066 icons_067icons_068icons_069icons_070

Tenable Blog

Subscribe

OT:ICEFALL Research from Forescout Explores Insecure-by-Design State of Operational Technology

OT:ICEFALL Research from Forescout Explores Insecure-by-Design State of Operational Technology

The latest research from Forescout’s Vedere Labs explores the state of risk management in operational technology through the lens of 56 insecure-by-design vulnerabilities.

Background

On June 20, Forescout’s Vedere Labs published their latest research findings into operational technology (OT) vulnerabilities titled OT:ICEFALL. This group has been examining vulnerabilities affecting OT security for a few years now and has produced notable findings including: NUCLEUS:13, NAME:WRECK, NUMBER:JACK and AMNESIA:33.

OT:ICEFALL sought to analyze and understand the prevalence and impact of insecure-by-design vulnerabilities in OT products. The researchers took a systemic look at OT risk management. The research notes that many factors complicate OT risk management including the certification of vulnerable products, lack of CVE assignment and supply chains propagating vulnerabilities. In the course of this research, Forescout also disclosed 56 vulnerabilities across nine vendor’s products. A tenth vendor is also affected by four vulnerabilities, but they are still going through the disclosure process.

Analysis

The 56 vulnerabilities are all tied to “insecure-by-design” flaws common in the OT space within the following products:

Vendor Impacted Products
Bently Nevada

3700

TDI equipment

Emerson

DeltaV

Ovation

OpenBSI

ControlWave

BB 33xx

ROC

Fanuc

PACsystems

Honeywell

Trend IQ

Safety Manager FSC

Experion LX

ControlEdge

Saia Burgess PCD

JTEKT Toyopuc
Motorola

MOSCAD

ACE IP gateway

MDLC

ACE1000

MOSCAD Toolbox STS

Omron

SYSMAC Cx series

Nx series

Phoenix Contact ProConOS
Siemens WinCC OA
Yokogawa STARDOM

These vulnerabilities can be grouped into four categories:

  • Insecure engineering protocols
  • Weak cryptography or broken authentication schemes
  • Insecure firmware updates
  • Remote code execution via native functionality

In a worst case scenario, an attacker with network access to a vulnerable device could exploit some of these flaws to “remotely execute code, change the logic, files or firmware of OT devices, bypass authentication, compromise credentials, cause denials of service or have a variety of operational impacts.” According to Forescout, 35% of the 56 vulnerabilities disclosed could allow for firmware manipulation or remote code execution.

This research harkens back to past industrial attacks, like Industroyer and TRITON, that relied on similar insecure-by-design flaws in their targeted OT environments. It also traces its history to Project Basecamp, an effort by Digital Bonds in 2017 to “highlight and demonstrate the fragility and insecurity of most [supervisory control and data acquisition] SCADA and [distributed control system] DCS field devices.”

Proof of concept

There are no proofs-of-concept available for any of the 56 vulnerabilities disclosed. Because “many of [these vulnerabilities] will remain unpatched in production environments for a significant amount of time,” Forescout did not release any technical details of the individual vulnerabilities discovered through the course of its research.

Vendor response

Forescout does not provide specific details on whether or when any of the vendors will be patching these vulnerabilities. Organizations should monitor for vendor advisories from all of their OT providers.

The Cybersecurity and Information Security Agency has also published an advisory for OT:ICEFALL, along with five Industrial Controls Systems Advisories for some of the affected products. Yokogawa has also issued an advisory for the vulnerabilities in its STARDOM product.

Solution

The best defense for these vulnerabilities at this time is to ensure OT best practices are being followed.

  • Assess systems for vulnerable devices
  • Segment vulnerable devices, particularly from the internet
  • Use secure methods for remote access when that access is necessary to operations
  • Keep up to date on patches from vendors and establish remediation practices
  • Develop network monitoring rules to block or alert for anomalous traffic

Identifying affected systems

Tenable Research has developed plugins to identify devices that may be vulnerable to the OT:ICEFALL related flaws:

  • 500655 - Saia Burgess OT:ICEFALL Multiple Potential Vulnerabilities
  • 500656 - Honeywell OT:ICEFALL Multiple Potential Vulnerabilities
  • 500657 - Omron OT:ICEFALL Multiple Potential Vulnerabilities
  • 500658 - Emerson OT:ICEFALL Multiple Potential Vulnerabilities

Get more information

Join Tenable's Security Response Team on the Tenable Community.

Learn more about Tenable, the first Cyber Exposure platform for holistic management of your modern attack surface.

Get a free 30-day trial of Tenable.io Vulnerability Management.

Related Articles

Are You Vulnerable to the Latest Exploits?

Enter your email to receive the latest cyber exposure alerts in your inbox.

tenable.io

FREE FOR 30 DAYS


Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy.

tenable.io BUY

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

65 assets

Choose Your Subscription Option:

Buy Now

Try Nessus Professional Free

FREE FOR 7 DAYS

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy Nessus Professional

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy a multi-year license and save. Add Advanced Support for access to phone, community and chat support 24 hours a day, 365 days a year.

Select Your License

Buy a multi-year license and save.

Add Support and Training

Tenable.io FREE FOR 30 DAYS

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy.

Tenable.io BUY

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

65 assets

Choose Your Subscription Option:

Buy Now

Try Tenable.io Web Application Scanning

FREE FOR 30 DAYS

Enjoy full access to our latest web application scanning offering designed for modern applications as part of the Tenable.io platform. Safely scan your entire online portfolio for vulnerabilities with a high degree of accuracy without heavy manual effort or disruption to critical web applications. Sign up now.

Buy Tenable.io Web Application Scanning

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

5 FQDNs

$3,578

Buy Now

Try Tenable.io Container Security

FREE FOR 30 DAYS

Enjoy full access to the only container security offering integrated into a vulnerability management platform. Monitor container images for vulnerabilities, malware and policy violations. Integrate with continuous integration and continuous deployment (CI/CD) systems to support DevOps practices, strengthen security and support enterprise policy compliance.

Buy Tenable.io Container Security

Tenable.io Container Security seamlessly and securely enables DevOps processes by providing visibility into the security of container images – including vulnerabilities, malware and policy violations – through integration with the build process.

Try Tenable Lumin

FREE FOR 30 DAYS

Visualize and explore your Cyber Exposure, track risk reduction over time and benchmark against your peers with Tenable Lumin.

Buy Tenable Lumin

Contact a Sales Representative to see how Lumin can help you gain insight across your entire organization and manage cyber risk.

Try Tenable.cs

FREE FOR 30 DAYS Enjoy full access to detect and fix cloud infrastructure misconfigurations in the design, build and runtime phases of your software development lifecycle.

Buy Tenable.cs

Contact a Sales Representative to learn more about Cloud Security and how you can secure every step from code to cloud.