PALANTIR: an NFV-based security-as-a-service approach for automating threat mitigation

Small and medium enterprises are significantly hampered by cyber-threats as they have inherently limited skills and financial capacities to anticipate, prevent, and handle security incidents. The EU-funded PALANTIR project aims at facilitating the outsourcing of the security supervision to external...

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Detalles Bibliográficos
Autores: Compastié, Maxime, López Martínez, Antonio, Fernández, Carolina, Gil Pérez, Manuel, Tsarsitalidis, Stylianos, Xylouris, George, Mlakar, Izidor, Kourtis, Michail Alexandros, Šafran, Valentino
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/56514
Acceso en línea:http://hdl.handle.net/10230/56514
http://dx.doi.org/10.3390/s23031658
Access Level:acceso abierto
Palabra clave:Security-as-a-Service
security orchestration
policy-driven management
virtual network functions
finite state machines
constraints programming
Descripción
Sumario:Small and medium enterprises are significantly hampered by cyber-threats as they have inherently limited skills and financial capacities to anticipate, prevent, and handle security incidents. The EU-funded PALANTIR project aims at facilitating the outsourcing of the security supervision to external providers to relieve SMEs/MEs from this burden. However, good practices for the operation of SME/ME assets involve avoiding their exposure to external parties, which requires a tightly defined and timely enforced security policy when resources span across the cloud continuum and need interactions. This paper proposes an innovative architecture extending Network Function Virtualisation to externalise and automate threat mitigation and remediation in cloud, edge, and on-premises environments. Our contributions include an ontology for the decision-making process, a Fault-and-Breach-Management-based remediation policy model, a framework conducting remediation actions, and a set of deployment models adapted to the constraints of cloud, edge, and on-premises environment(s). Finally, we also detail an implementation prototype of the framework serving as evaluation material.