V. Casola, Alessandra De Benedictis, M. Rak, Umberto Villano
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引用次数: 2
摘要
云服务在许多业务领域的大量采用极大地增加了对有效解决方案的需求,以改进已部署服务的安全性。采用安全服务水平协议(Security Service Level Agreements,简称sla)是一种有效的解决方案,可以正式声明云服务能够提供的安全保证。即使在部署和启动服务之前正确实现了服务提供者声明的安全策略,实际的安全级别也会随着时间的推移而降低,因为攻击者逐渐能够获得暴露的攻击面上的知识。在本文中,我们提出了一个安全SLA驱动的MTD框架,该框架允许通过在不同可接受的应用程序配置之间自动切换来将MTD策略应用于云应用程序,以便混淆攻击者并使其侦察工作无效,同时在重新配置中保留应用程序安全SLA。
A Security SLA-Driven Moving Target Defense Framework to Secure Cloud Applications
The large adoption of cloud services in many business domains dramatically increases the need for effective solutions to improve the security of deployed services. The adoption of Security Service Level Agreements (Security SLAs) represents an effective solution to state formally the security guarantees that a cloud service is able to provide. Even if security policies declared by the service provider are properly implemented before the service is deployed and launched, the actual security level tends to degrade over time, due to the knowledge on the exposed attack surface that the attackers are progressively able to gain. In this paper, we present a Security SLA-driven MTD framework that allows MTD strategies to be applied to a cloud application by automatically switching among different admissible application configurations, in order to confuse the attackers and nullify their reconnaissance effort, while preserving the application Security SLA across reconfigurations.