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Memorias de investigación
Otras publicaciones:
CacheShield: Protecting Legacy Processes Against Cache Attacks
Año:2017
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones,
  • Ciencias de la computación y tecnología informática
Datos
Descripción
Cache attacks pose a threat to any code whose execution flow or memory accesses depend on sensitive information. Especially in public clouds, where caches are shared across several tenants, cache attacks remain an unsolved problem. Cache attacks rely on evictions by the spy process, which alter the execution behavior of the victim process. We show that hardware performance events of cryptographic routines reveal the presence of cache attacks. Based on this observation, we propose CacheShield, a tool to protect legacy code by monitoring its execution and detecting the presence of cache attacks, thus providing the opportunity to take preventative measures. CacheShield can be run by users and does not require alteration of the OS or hypervisor, while previously proposed software-based countermeasures require cooperation from the hypervisor. Unlike methods that try to detect malicious processes, our approach is lean, as only a fraction of the system needs to be monitored. It also integrates well into today's cloud infrastructure, as concerned users can opt to use CacheShield without support from the cloud service provider. Our results show that CacheShield detects cache attacks fast, with high reliability, and with few false positives, even in the presence of strong noise.
Internacional
Si
Entidad
Cornell University, arXiv
Lugar
Páginas
1-13
Referencia/URL
https://arxiv.org/abs/1709.01795
Tipo de publicación
Artículo de acceso abierto
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Samira Briongos Herrero (UPM)
  • Autor: Gorka Irazoqui (Worcester Polytechnic Institute)
  • Autor: Pedro Jose Malagon Marzo (UPM)
  • Autor: Thomas Eisenbarth (Worcester Polytechnic Institute)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Laboratorio de Sistemas Integrados (LSI)
  • Centro o Instituto I+D+i: Centro de Investigación en Simulación Computacional
  • Departamento: Ingeniería Electrónica
S2i 2023 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)