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Journal of Software:2015.26(7):1638-1649

基于环境属性的网络威胁态势量化评估方法
席荣荣,云晓春,张永铮
(中国科学院 信息工程研究所, 北京 100093)
Quantitative Threat Situational Assessment Based on Contextual Information
XI Rong-Rong,YUN Xiao-Chun,ZHANG Yong-Zheng
(Institute of Information Engineering, The Chinese Academy of Sciences, Beijing 100093, China)
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Received:August 20, 2013    Revised:April 02, 2014
> 中文摘要: 传统的网络威胁态势评估方法主要是基于原始的警报信息,未结合目标网络的环境信息,使得方法的准确性受到很大的影响.提出了一种基于环境属性的网络威胁态势量化评估方法,该方法首先根据目标网络的环境属性对警报进行验证,判定引发警报的安全事件发生的可能性;然后,基于安全事件的风险级别及所针对的资产价值,分析安全事件发生后造成的损失;最后,基于安全事件发生的可能性及造成的损失量化评估网络的威胁态势.实例分析结果表明,该方法可以准确地量化评估网络的威胁态势.
Abstract:Traditional network threat situational assessment is based on primary alerts, however, its lack of access to contextual information compromises the accuracy of assessment. This paper proposes a method to quantitatively assess network threat situation based on not only alerts but also contextual information. The new method first verifies alerts along with contextual information to determine the successful possibility of events; then analyzes the loss caused by events according to the risk and the corresponding asset value of events; and finally quantitatively assesses network threat situation based on the successful possibility and the loss of events. Case studies show that the proposed method can evaluate network threat situations accurately.
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基金项目:国家高技术研究发展计划(863)(2012AA012803, 2013AA014703); 国家科技支撑计划(2012BAH46B02); 国家自然科学基金(61070185); 中国科学院知识创新工程基金(XDA06030200) 国家高技术研究发展计划(863)(2012AA012803, 2013AA014703); 国家科技支撑计划(2012BAH46B02); 国家自然科学基金(61070185); 中国科学院知识创新工程基金(XDA06030200)
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席荣荣,云晓春,张永铮.基于环境属性的网络威胁态势量化评估方法.软件学报,2015,26(7):1638-1649

XI Rong-Rong,YUN Xiao-Chun,ZHANG Yong-Zheng.Quantitative Threat Situational Assessment Based on Contextual Information.Journal of Software,2015,26(7):1638-1649