External Device to Protect the Software-Defined Network Performance in Case of a Malicious Attack
Abdullah Soliman Alshra’a, Jochen Seitz · 2019
Many security analyses argue that the Software-Defined Network (SDNs) framework has many vulnerabilities because SDN provides malicious users an easy opportunity to overload network resources. Typically, the malicious user directs the attack towards the network layer, especially the controller plane which acts as the core of the network. However, the attack is redirected to the application layer when the attacker is defeated in the network layer. This paper proposes to extend the SDN controller with an external device to improve the SDN architecture and to protect the service level of the SDN components against malicious attacks. Simulation results show that the proposal successfully protects Web servers against Slow HTTP DDoS attacks.