Active Bus Control for Cyber-Attack Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cyber-attack detection technologies are passive, failing to directly respond to and mitigate threats, allowing malicious code to neutralize or seize control of systems, leading to potential harm or damage.
Innovation Solution
An active bus control system that monitors and decodes messages in real-time, allowing for early threat detection and active intervention by isolating nodes or modifying message frames to prevent threat delivery, using a combination of switch matrices and override transceivers to control the communications bus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If passive bus communication monitoring is used, then system complexity is reduced, but the ability to mitigate cyber-attacks is insufficient
Solution Approach 1:
The patent introduces an active bus control system that acts as an intermediary between the communication bus and the nodes. This intermediary monitors bus traffic, detects threats in real-time, and actively intervenes by isolating compromised nodes or modifying message frames to prevent threat propagation, thereby enhancing security without requiring fundamental changes to the existing bus architecture
Solution Approach 2:
The system performs preliminary threat detection by analyzing message frames as they are being transmitted on the bus. By detecting threats during the transmission process rather than after completion, the system can take preventive action to stop malicious code before it reaches its target nodes, mitigating potential damage in advance
2Reliability
If real-time threat detection and active intervention are implemented, then cyber-attack mitigation is improved, but device complexity increases
Solution Approach 1:
The active bus control system is segmented into distinct functional modules: a message frame capture component that intercepts bus traffic, a threat detection component that analyzes captured frames, and a bus control component that executes mitigation actions. This segmentation allows each module to perform its specific function efficiently while maintaining overall system manageability and modularity
Solution Approach 2:
The system implements continuous feedback by monitoring bus traffic in real-time, comparing message frames against known threat signatures, and automatically adjusting bus control actions based on detected threats. This closed-loop feedback mechanism enables dynamic response to evolving cyber-attacks while maintaining system stability through automated control decisions
Data Source
AI summary
Techniques are provided for actively controlling a communications bus to mitigate threats, including cyber-attacks. A methodology implementing the techniques according to an embodiment includes detecting a threat in a message that is being transmitted between nodes on the communications bus. The message comprises one or more message frames and the threat detection is based on analysis of an initial portion of the message frame. The method further includes actively controlling the bus, based on the threat detection, to prevent the remaining portion of the message frame from delivering the threat to one or more of the nodes on the bus. Actively controlling the bus includes isolating nodes from the bus and/or overwriting data in the remaining portion of the message frame to invalidate the message frame or to remove the threat from the message frame.