Attacking and Protecting Constrained Embedded Systems from Control Flow Attacks

摘要: The security of low-end embedded systems became a very important topic as they are more connected and pervasive. This thesis explores software attacks in the context such wireless sensor networks. These devices usually employ micro-controller with limited computing capabilities memory availability, large variety architectures. In first part this we show possibility code injection on Harvard architecture devices, which was largely believed to be infeasible. second describe existing software-based attestation techniques. techniques used detect compromises WSN Nodes. We propose new method for that is immune vulnerabilities previous protocols. Finally, last present hardware-based technique modifies layout prevent control flow attacks, has low overhead.