The Importance of Sensor Integrity in Safety Systems
Summary: LOGIIC's Project 12, supported by Dragos and other researchers starting in March 2019 and delayed by COVID-19, examined whether intelligent HART-protocol sensors and transmitters used in safety instrumented systems could have their data integrity compromised through an Instrument Maintenance System or Asset Management System reachable over TCP/IP. The final report concludes safety systems are vulnerable to malicious attacks and urges owners to immediately verify the pedigree and integrity of all device type managers in use.
Bottom line: The report states that many issues are design flaws in the HART protocol where blocking attacks is impossible, leaving monitoring for suspicious changes as the available control - so the question is whether anyone is watching those sensor and transmitter networks at all.
Read the original at Dragos Blog ↗
- Topics
- OT / ICS & Critical Infrastructure
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