Truncate after preamble: PHY-based starvation attacks on IoT networks

Truncate after preamble: PHY-based starvation attacks on IoT networks
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前导码后截断:物联网网络上基于 PHY 的饥饿攻击

DOI:
10.1145/3395351.3399356
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发表时间:
2020
期刊:
WiSec '20: Proceedings of the 13th ACM Conference on Security and Privacy in Wireless and Mobile Networks
影响因子:
--
通讯作者:
Starobinski, David
Starobinski, David
中科院分区:
--
文献类型:
--
作者:
Gvozdenovic, Stefan;Becker, Johannes K;Mikulskis, John;Starobinski, David

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我们提出并评估前导码后截断(TaP)攻击,即尽管信道条件良好,接收器仍无法解码传入信号。在 TaP 攻击中,攻击者使用标准前导码和数据包长度字段宣布较大的有效负载长度,但忽略传输有效负载。我们在 SDR 平台上实施了 TaP 攻击,并对不同制造商销售的 5 个 Zigbee 和 7 个 Wi-Fi 设备评估了攻击的有效性。我们发现所有的 Zigbee 设备都容易受到攻击,而 Wi-Fi 设备则不同程度地容易受到攻击。首先,我们表明攻击者可以在 Zigbee 或 Wi-Fi 通道上造成超过 90% 的数据包丢失,所使用的能量分别比恒定干扰器少六或五个数量级。最后,我们提出了几种不同复杂程度的方法来检测攻击。
We present and evaluate Truncate-after-Preamble (TaP) attacks, whereby a receiver cannot decode an incoming signal despite good channel conditions. In a TaP attack, the attacker announces a large payload length using a standard preamble and packet length field, but omits to transmit the payload. We implement the TaP attack on a SDR platform, and evaluate the effectiveness of the attack on five Zigbee and seven Wi-Fi devices sold by different manufacturers. We show that all of the Zigbee devices are vulnerable to the attack, while the Wi-Fi devices are vulnerable to the attack to varying degrees. Chiefly, we show that an attacker can cause over 90% packet loss on a Zigbee or Wi-Fi channel, using respectively six or five orders of magnitude less energy than a constant jammer would. Finally, we present several methods, with different degrees of sophistication, for detecting the attacks.
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