Denial-of-Service Attacks on C-V2X Networks
Denial-of-Service Attacks on C-V2X Networks
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DOI：
10.14722/autosec.2021.23006
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
Natavsa Trkulja;D. Starobinski;R. Berry
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文献类型：
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作者：
Natavsa Trkulja;D. Starobinski;R. Berry
蜂窝车联网（C-V2X）网络越来越多地被汽车原始设备制造商（OEM）采用。如3GPP Release 14 Mode 4中所定义的，C-V2X允许车辆在没有蜂窝基站的情况下自我管理网络。由于C-V2X网络传递安全关键消息，因此评估其安全状况至关重要。这项工作为在模式4下运行的C-V2X网络提供了一组新的拒绝服务（DoS）攻击。这些攻击是由对抗性资源块选择引起的，并且在复杂性和效率上各不相同。特别是，我们认为“不经意”的对手，忽略最近的传输活动的资源块，“聪明”的对手，做监视活动的每个资源块，和“合作”的对手，共同努力，以确保他们攻击不同的目标。我们分析和模拟这些攻击，以展示其有效性。假设有固定数量的攻击者，我们表明，在低车辆密度，智能和合作的攻击可以显着影响网络性能，而在高车辆密度，不经意的攻击几乎是一样有效的更复杂的攻击。
Cellular Vehicle-to-Everything (C-V2X) networks are increasingly adopted by automotive original equipment manufacturers (OEMs). C-V2X, as defined in 3GPP Release 14 Mode 4, allows vehicles to self-manage the network in absence of a cellular base-station. Since C-V2X networks convey safety-critical messages, it is crucial to assess their security posture. This work contributes a novel set of Denial-of-Service (DoS) attacks on C-V2X networks operating in Mode 4. The attacks are caused by adversarial resource block selection and vary in sophistication and efficiency. In particular, we consider "oblivious" adversaries that ignore recent transmission activity on resource blocks, "smart" adversaries that do monitor activity on each resource block, and "cooperative" adversaries that work together to ensure they attack different targets. We analyze and simulate these attacks to showcase their effectiveness. Assuming a fixed number of attackers, we show that at low vehicle density, smart and cooperative attacks can significantly impact network performance, while at high vehicle density, oblivious attacks are almost as effective as the more sophisticated attacks.