HTTP Slow DDoS攻击机理分析及针对OpenStack云平台的防御策略与架构研究
信息技术与网络安全
白翼铭,燕 玮,许凤凯,郝 帅,范春雷
(华北计算机系统工程研究所,北京100083)
摘要: 针对基于OpenStack开源云平台的应用服务易受HTTP Slow DDoS攻击的安全问题,对其攻击的机理进行详细分析,并以基于OpenStack架构搭建的云平台为基础环境,构建Web试验服务器环境,同时创建Docker模拟“肉鸡”(指被攻击者远程控制的计算机),通过使用Python库中urllib库和socket编程的方法,实现对三种常见HTTP Slow DDoS攻击的模拟,通过对攻击产生的流量和数据包内容进行分析,研究HTTP Slow DDoS攻击机理。结果表明,三种攻击方式均可以使云平台中的Web服务器连接失败。HTTP Slow DDoS攻击方式对基础带宽不足或未部署相关防御策略的私有云平台威胁更大,可使其无法正常提供服务。最后针对文中的三种HTTP Slow DDoS攻击方式,提出了相应的防御策略,并通过攻击防御试验证实了这些策略的有效性。
中圖分類(lèi)號(hào): TP309.5
文獻(xiàn)標(biāo)識(shí)碼: A
DOI: 10.19358/j.issn.2096-5133.2021.01.004
引用格式: 白翼銘,燕瑋,許鳳凱,等。 HTTP Slow DDoS攻擊機(jī)理分析及針對(duì)OpenStack云平臺(tái)的防御策略與架構(gòu)研究[J].信息技術(shù)與網(wǎng)絡(luò)安全,2021,40(1):21-25.
文獻(xiàn)標(biāo)識(shí)碼: A
DOI: 10.19358/j.issn.2096-5133.2021.01.004
引用格式: 白翼銘,燕瑋,許鳳凱,等。 HTTP Slow DDoS攻擊機(jī)理分析及針對(duì)OpenStack云平臺(tái)的防御策略與架構(gòu)研究[J].信息技術(shù)與網(wǎng)絡(luò)安全,2021,40(1):21-25.
Analysis of HTTP Slow DDoS attack mechanism and research on defense strategy and architecture of OpenStack cloud platform
Bai Yiming,Yan Wei,Xu Fengkai,Hao Shuai,Fan Chunlei
(National Computer System Engineering Research Institute of China,Beijing 100083,China)
Abstract: Aiming at the security problem that OpenStack-based open source cloud application services are susceptible to HTTP Slow DDoS attacks, this article analyzes the mechanism of the attack in detail, and builds a web test server environment based on the OpenStack-based cloud platform, at the same time,creates Docker simulation'poultry‘(computers remotely controlled by the attacker), through the use of urllib library and socket programming method in Python library, three common HTTP slow DDoS attacks are simulated. Then, the mechanism of HTTP Slow DDoS attack is studied by analyzing the traffic and packet content generated by the attack. The results show that all the three attacks can make the connection of the Web server in the cloud platform fail. HTTP Slow DDoS attacks are a kind of greater threat to private cloud platforms that have insufficient underlying bandwidth or have not deployed relevant defense policies, making them unable to provide services properly. Finally, this paper proposes corresponding defense strategies for the three attack modes of HTTP Slow DDoS in this paper, and proves the effectiveness of these strategies through attack and defense experiments.
Key words : HTTP Slow DDoS;OpenStack;cloud plantform;defense strategy
0 引言
近年來(lái),云計(jì)算的概念逐漸普及,同時(shí)其面臨的威脅也與日俱增。由于現(xiàn)在云服務(wù)的應(yīng)用越來(lái)越廣泛,基于B/S架構(gòu)的網(wǎng)頁(yè)應(yīng)用形式逐漸代替?zhèn)鹘y(tǒng)桌面應(yīng)用,部署在云平臺(tái)上的Web應(yīng)用越來(lái)越多,導(dǎo)致部署在云平臺(tái)上的Web服務(wù)器逐漸成為攻擊者的目標(biāo),因此對(duì)其防御策略的研究迫在眉睫[1]。而對(duì)攻擊者而言,對(duì)云平臺(tái)中提供網(wǎng)頁(yè)服務(wù)的Web服務(wù)器進(jìn)行HTTP Slow DDoS攻擊是一種非常有效的攻擊手段。針對(duì)這一問(wèn)題,本文通過(guò)對(duì)HTTP Slow DDoS攻擊的模擬和研究,提出了相應(yīng)的防御策略并對(duì)其有效性進(jìn)行驗(yàn)證。
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作者信息:
白翼銘,燕 瑋,許鳳凱,郝 帥,范春雷
(華北計(jì)算機(jī)系統(tǒng)工程研究所,北京100083)
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