Security · 1h ago
Manual EtherNet/IP Packet Crafting Exposes OT Security Gaps
A developer built a raw EtherNet/IP sandbox without high-level libraries, revealing how fragile industrial protocol implementations can be. Silent failures occurred when fragmented transfers had byte-level errors, with no feedback from the CIP Message Router. The experience underscores the gap between abstraction layers and real-world OT behavior.
Meridian48 take
The story highlights a niche but critical point: OT security research requires deep protocol understanding, not just tooling.
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Abandoning Abstractions: Manually Crafting EtherNet/IP Packets Almost Broke Me →
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ot-securityindustrial-protocols