| 802.11协议中RTS/CTS机制的安全漏洞分析 |
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| 引用本文： | 陈伟,俞雷,张迎周.802.11协议中RTS/CTS机制的安全漏洞分析[J].计算机应用,2008,28(12):3183-3186. |
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| 作者姓名： | 陈伟 俞雷 张迎周 |
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| 作者单位： | 南京邮电大学 南京邮电大学 南京邮电大学 |
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| 基金项目： | 国家自然科学基金
，
江苏省高校自然科学基金
，
南京邮电大学攀登计划
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| 摘 要： | 802.11协议中的RTS/CTS机制可以解决隐藏节点问题，通过分析RTS/CTS机制中的安全漏洞，发现由于RTS/CTS握手过程中没有认证机制，攻击者可以通过连续发送设定足够大网络分配矢量值的伪造RTS/CTS帧，以达到拒绝服务攻击的目的。在理论分析的基础上，使用aircrack-ng的软件开发包，在真实的无线网络环境中进行了实验，实验结果显示，RTS/CTS机制确实存在着被拒绝服务攻击的安全漏洞，可随时被攻击者利用，需引起充分重视。
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| 关 键 词： | 无线安全 RTS/CTS机制 802.11协议 拒绝服务攻击 无线局域网 |
| 收稿时间： | 2008-08-05 |
| 修稿时间： | 2008-09-12 |
Vulnerabilities analysis of RTS/CTS mechanism in 802.11 protocols |
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| CHEN Wei,YU Lei,ZHANG Ying-zhou.Vulnerabilities analysis of RTS/CTS mechanism in 802.11 protocols[J].journal of Computer Applications,2008,28(12):3183-3186. |
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| Authors: | CHEN Wei YU Lei ZHANG Ying-zhou |
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| Affiliation: | CHEN Wei,1,2 YU Lei1,ZHANG Ying-zhou1,21.College of Computer,Nanjing University of Posts , Telecommunications,Nanjing Jiangsu 210003,China,2.Institute of Computer Technology |
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| Abstract: | RTS/CTS mechanism in 802.11 protocol can solve the hidden nodes problem in wireless networks. The vulnerabilities in RTS/CTS mechanism were analyzed. Due to the lack of authentication in RTS/CTS handshakes, attackers can launch denial of service attacks by continuously sending spurious RTS/CTS frames with large enough NAV values. Based on theoretical analysis, experiment was implemented in practical wireless networks using aircrack-ng developing toolkit. The experimental results show that it is feasible to launch denial of service attacks against RTS/CTS mechanism. This vulnerability can be utilized by attacker at any time and should be paid more attention. |
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| Keywords: | wireless security RTS/CTS mechanism 802 11 protocols denial of service attack wireless local area networks |
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