论文标题
关于利用交通碰撞系统漏洞的可行性
On the Feasibility of Exploiting Traffic Collision Avoidance System Vulnerabilities
论文作者
论文摘要
避免交通碰撞系统（TCA）是当今大多数商用飞机所需的安全至关重要系统。但是，TCA并非旨在说明恶意演员。虽然过去，攻击者可能不可行地制作无线电信号来模仿TCAS信号，但攻击者如今可以访问开源数字信号处理软件，例如GNU无线电等廉价的软件定义的无线电（SDR），从而可以传播虚假的TCAS消息。在本文中，提出了从对抗性角度分析TCA的定性和定量方法。为了证明当今配备TCA的飞机之间在空中碰撞近中间碰撞的可行性，使用GNU无线电和针对现实威胁模型的SDR开发了实验性幻影飞机发电机。
Traffic Collision Avoidance Systems (TCAS) are safety-critical systems required on most commercial aircrafts in service today. However, TCAS was not designed to account for malicious actors. While in the past it may have been infeasible for an attacker to craft radio signals to mimic TCAS signals, attackers today have access to open-source digital signal processing software, like GNU Radio, and inexpensive software defined radios (SDR) that enable the transmission of spurious TCAS messages. In this paper, methods, both qualitative and quantitative, for analyzing TCAS from an adversarial perspective are presented. To demonstrate the feasibility of inducing near mid-air collisions between current day TCAS-equipped aircraft, an experimental Phantom Aircraft generator is developed using GNU Radio and an SDR against a realistic threat model.
