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DHS Cautions on Possible Effects to GPS from April 6 Week Number Rollover Event

The U.S. Department of Homeland Security has issued a memorandum for owners and operators of U.S. critical infrastructure that use Coordinated Universal Time (UTC) from Global Positioning System (GPS) devices. The memorandum is intended to assist owners and operators with preparations for a GPS “Week Number Rollover” that is scheduled to occur on April 6, 2019, as this event may impact the reliability of the reported UTC.

Rockwell Automation RSLinx Classic (ICSA-19-064-01) – Products Used in the Water and Wastewater and Energy Sectors

The NCCIC has released an advisory on a stack-based buffer overflow vulnerability in Rockwell Automation RSLinx Classic. Versions 4.10.00 and prior are affected. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the target device. Rockwell Automation has released patches to address earlier versions of RSLinx Classic including v3.60, v3.70, v3.80, v3.81, v3.90, v4.00.01, v4.10. The NCCIC also advises on a series of measures for mitigating this vulnerability.

Inside Triton, the World’s “Most Murderous” Malware

An article from the MIT Technology Review on Triton malware includes commentary from Julian Gutmanis, a cybersecurity consultant who was hired by a petrochemical plant in Saudi Arabia to assist with the response to a cyber attack on its system by the malware. Triton is unique from other types of malware targeting industrial control systems because it seeks to compromise safety instrumented systems, which keep operations running at safe levels and can shut down systems altogether to prevent life-threatening disasters.

IRS Launches “Dirty Dozen” Campaign on Tax Scams

The Internal Revenue Service (IRS) has launched its annual awareness campaign on the 12 most prevalent tax scams, known as the “Dirty Dozen.” As part of the campaign, IRS will highlight one scam each weekday. The first topic in the campaign focuses on internet phishing scams that lead to tax fraud and identity theft. IRS warns to be on alert for a continuing surge of fake emails, texts, websites, and social media attempts to steal users’ personal information.

PSI GridConnect Telecontrol (ICSA-19-059-01) – Products Used in the Energy Sector

The NCCIC has published an advisory on a cross-site scripting vulnerability in PSI GridConnect Telecontrol. Numerous products and versions of these products are affected. Successful exploitation of this vulnerability could allow an attacker to execute dynamic scripts in the context of the application, which could allow cross-site scripting attacks. PSI recommends users of affected devices update their devices to a version where this vulnerability is patched. The NCCIC also advises on a series of measures for mitigating this vulnerability.

M-Trends 2019 Report Examines APT Actors and Trends, Observes Increase in Retargeted Attacks

FireEye Mandiant has just released M-Trends 2019, its annual report on major trends it observed over the past year. One of the trends noted in the report is the significant increase in governments publicly attributing attacks to threat actors, which are oftentimes other nations. FireEye Mandiant is well known for reporting on malicious cyber activity by advanced persistent threat (APT) actors, many of which it indicates are associated with nations.

NIST Launches Small Business Cybersecurity Corner

The National Institute of Standards and Technology (NIST) has launched the “Small Business Cybersecurity Corner,” a website intended to disseminate consistent, clear, concise, and actionable resources – all of which are free – to small businesses. Currently the website contains resources that provide overviews of types of cyber risks and threats; offer recommendations for how to manage risks; help create, evaluate, and improve security plans; provide guidance for responding to a cyber incident; and list training resources like educational courses, webinars, and videos.

Vulnerability Management – What to Do When There Is No (or will never be a) Patch

Patching is a fundamental process of every OT/ICS vulnerability management strategy. Determining which patches to (or not) apply is crucial to addressing known exploits. But how are you addressing vulnerabilities that do not (or will never) have a patch? Ralph Langner, arguably the world's foremost expert on Stuxnet, posits that the worst OT/ICS vulnerabilities will never be disclosed, let alone patched. Therefore, solely relying on public vulnerability disclosures will result in gaps in your protection strategy. Mr.

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