Using Defined IEC62443-2-3 or DHS Strategy for Critical Infrastructure
The recent ππ«π¨π°ππππ«π’π€π patch update caused ππ π¬π²π¬πππ¦ crashes, highlighting the serious impact of software vulnerabilities. This disruptions has affected IT services, and sparked global chaos in airline and banking sector.
In πππ/ππ π¬π²π¬πππ¦π¬, the consequences of poor patch management can be even more severe, including potential financial losses and risks to human safety. Ensuring effective patch management helps mitigate these risks and maintain operational availability.
WINDOWS XP CRASH CAUSED BY MCAFEE UPDATE
In 2010, a McAfee update caused a widespread malfunction of Windows XP systems, identified as a false positive virus alert. Deleted the critical files and looped the system into endless cycles.
VARIOUS WINDOWS CRASHED BY CROWDSTRIKE UDPATE
July 2022, a faulty CrowdStrike update caused the crash of over ~8.5 million Windows Endpoints worldwide bring down the multiple critical facilities
The ANSI/ISA-TR62443-2-3 standard outlines requirements for asset owners and industrial automation and control system (IACS) product suppliers who have established and are now maintaining an IACS patch management program. This Technical Report recommends:
The unintended consequences of a poor patch management program can include:
Malicious threat actors often have an advantage over their targets due to the challenges product suppliers and asset owners face in keeping their systems up to date. When a vulnerability is disclosed, whether with good or malicious intent, the responsibility primarily falls on the asset owner to apply the patch promptly.
DHS released a systematic approach to patch management in critical systems. Critical Decision Tree
If an urgency determination requires immediate action and a work-around solution is either unavailable or not optimal, follow these steps:
| REPLIL INDUSTRIAL PATCH MANAGER (IPM) | REPLIL OT PATCH SANDBOX (OPS) |
Risk-Based Patch Prioritization
Scheduled Patch Deployment
Automated Patch Management
Continuous Monitoring: Β·Β Β Β Β Β Β Implement continuous monitoring to detect new vulnerabilities and assess the need for patches in real-time. Automated alerts can help promptly address critical vulnerabilities. |
Testing and Validation
|
Reduce Time To Deploy OEM Patches and Monitor Key Insights, Automatically Test and Validate the True State of The Operational Applications.
