Empirical Analysis of Virtual Carrier Sense Flooding Attacks Over Wireless Local Area Network
Empirical Analysis of Virtual Carrier Sense Flooding Attacks Over Wireless Local Area Network
复制标题
无线局域网虚拟载波侦听洪泛攻击的实证分析
DOI：
10.3844/jcssp.2009.214.220
复制
发表时间：
2009
影响因子：
--
通讯作者：
S. Subramaniam
中科院分区：
文献类型：
--
作者：
Mina Malekzadeh;A. Ghani;J. Desa;S. Subramaniam
问题陈述：无线局域网 (WLAN) 容易受到不同类型的漏洞的影响。拒绝服务 (DoS) 攻击是 WLAN 上当前最具挑战性的问题。该研究的目的是（i）提供实证分析，以利用无线控制帧漏洞进行一系列无线虚拟载波侦听 DoS 攻击，（ii）设计一个测试平台来比较和分析这些攻击对无线网络造成的损害，以及（iii）评估此类攻击在数据传输速率方面对 WLAN 性能的有效性。方法：测试台采用 ubuntu 分发版、网络分析仪、Atheros 芯片组以及向测试的 WLAN 进行帧注入。所有实验分为两个阶段：针对无线接入点和针对无线客户端。每个阶段都呈现三种情况下的实验结果：攻击之前、攻击期间和攻击之后。结果：即使在测试的 WLAN 中禁用虚拟载波侦听通信，目标节点仍然会对这些伪造帧做出响应，这使得攻击变得更容易。通过无线客户端进行的攻击比通过接入点进行的攻击更为有效。在VCS-RTS-C中，数据传输速率从3547.384 B sec -1 降低到9.185 B sec -1 。与VCS-CTS-C相比，其从4959.887-44.740 B sec -1 减少，并且VCS-ACK-C的减少量从7057.401-136.96 B sec -1 。获得的结果表明，在攻击过程中，目标客户端与无线网络完全断开，无法进行任何通信。结论：分析了无线虚拟载波侦听攻击对无线网络性能的影响。将被测WLAN在受到攻击时的数据传输速率与正常情况下运行的WLAN的传输速率进行比较。获得的结果证实，这些攻击很容易淹没并关闭无线网络。
Problem statement: Wireless Local Areas (WLANs) are subject to different types of vulnerabilities. Denial of Service (DoS) attack is the most current challenging issue on the WLANs. The objectives of the study were to (i) Provide an empirical analysis to conduct a series of wireless virtual carrier sense DoS attacks using wireless co ntrol frames vulnerabilities, (ii) Design a testbed to compared and analyzed the damage that these attacks can imposed on wireless networks, and (iii) Evaluated the effectiveness of such attacks on perf ormance of WLAN in term of data transmission rate. Approach: The testbed employed ubuntu distribution along a n etwork analyzer, Atheros chipset, and frame injection to the tested WLAN. All experiments were placed on two phases: Targeting wireless access point and targeting wireless client . Each phase presented the results of experiments u nder three circumstances: Before, during, and after the attacks. Results: Even when virtual carrier sense communication was disabled in the tested WLAN, still the target nodes answered to these forgery frames which made the attacks easier. Attacks over the wir eless clients were more effective than the access p oint. In VCS-RTS-C the rate of data transmission from 3547.384 B sec -1 decreased to 9.185 B sec -1 . In contrast with VCS-CTS-C, it decreased from 4959.887-44.740 B sec -1 and amount of decrease for VCS-ACK-C was from 7057.401-136.96 B sec -1 . The obtained results demonstrated that during the attacks the target clients were completely disconne cted from the wireless network and unable to do any communication. Conclusion: The influence of wireless virtual carrier sense at tacks on performance of the wireless network was analyzed. The data transmi ssion rate of the tested WLAN under the attacks was compared with the transmission rate of the WLAN operated under normal conditions. The obtained results confirmed the attacks could easily overwhelmed and shut down the wireless network.