arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.10262cs.CRcs.AIcs.GT
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网络安全不是游戏

Network Defense is Not a Game

The MITRE Corporation(MITRE公司);National Security Agency(国家安全局)

Andres Molina-Markham, Ransom K. Winder, Ahmad Ridley

摘要:

研究旨在应用人工智能(AI)来扩展和扩展人类操作员保护网络的能力。阻碍成功人工智能方法推广的一个基本问题-即,在游戏中击败人类的关键在于,网络防御不能被定义为一个具有固定规则的单一游戏。我们的立场是,网络防御更好地描述为具有不确定性和可能漂移规则的游戏的集合。因此,我们建议将网络防御任务定义为网络环境的分布,以:(i)使研究能够应用现代人工智能技术,例如无监督课程学习和网络防御的强化学习;(ii)促进设计定义明确的挑战,可用于比较自主网络防御的方法。为了证明自主网络防御的方法是实用的,重要的是能够推理其适用性的边界。因此,我们需要能够定义网络防御任务,这些任务捕获对抗策略、技术和过程(TTP)的集合;服务质量(QoS)要求;以及防御者可用的TTP。此外,定义这些任务的抽象必须是可扩展的;必须由定义良好的语义支持,使我们能够推理环境的分布;并且应该能够生成代理可以学习的数据和经验。我们的方法命名为自主网络防御的网络环境设计启发了FARLAND的架构,这是一个用于自主网络防御的高级强化学习框架,我们在MITRE使用它来开发RL网络防御者,这些防御者从MITRE Shield矩阵中执行蓝色操作,以对抗具有从MITRE ATT&CK TTP漂移的TTP的攻击者。

英文摘要:

Research seeks to apply Artificial Intelligence (AI) to scale and extend the capabilities of human operators to defend networks. A fundamental problem that hinders the generalization of successful AI approaches -- i.e., beating humans at playing games -- is that network defense cannot be defined as a single game with a fixed set of rules. Our position is that network defense is better characterized as a collection of games with uncertain and possibly drifting rules. Hence, we propose to define network defense tasks as distributions of network environments, to: (i) enable research to apply modern AI techniques, such as unsupervised curriculum learning and reinforcement learning for network defense; and, (ii) facilitate the design of well-defined challenges that can be used to compare approaches for autonomous cyberdefense. To demonstrate that an approach for autonomous network defense is practical it is important to be able to reason about the boundaries of its applicability. Hence, we need to be able to define network defense tasks that capture sets of adversarial tactics, techniques, and procedures (TTPs); quality of service (QoS) requirements; and TTPs available to defenders. Furthermore, the abstractions to define these tasks must be extensible; must be backed by well-defined semantics that allow us to reason about distributions of environments; and should enable the generation of data and experiences from which an agent can learn. Our approach named Network Environment Design for Autonomous Cyberdefense inspired the architecture of FARLAND, a Framework for Advanced Reinforcement Learning for Autonomous Network Defense, which we use at MITRE to develop RL network defenders that perform blue actions from the MITRE Shield matrix against attackers with TTPs that drift from MITRE ATT&CK TTPs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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