Host security threat analysis approach for network dynamic defense

Lixun LI; Bin ZHANG; Shuqin DONG

doi:10.11959/j.issn.2096-109x.2018031

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Host security threat analysis approach for network dynamic defense

Papers | 更新时间：2024-06-03

- Host security threat analysis approach for network dynamic defense
- Chinese Journal of Network and Information Security Vol. 4, Issue 4, Pages: 48-55(2018)
- 作者机构：
  
  1. 信息工程大学，河南郑州 450001
  2. 河南省信息安全重点实验室，河南郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-109x.2018031
  CLC： TP393
- Online First：2018-04，
  
  Published：15 April 2018
- 稿件说明：
移动端阅览
Lixun LI, Bin ZHANG, Shuqin DONG. Host security threat analysis approach for network dynamic defense[J]. Chinese Journal of Network and Information Security, 2018, 4(4): 48-55.
DOI：

Lixun LI, Bin ZHANG, Shuqin DONG. Host security threat analysis approach for network dynamic defense[J]. Chinese Journal of Network and Information Security, 2018, 4(4): 48-55. DOI： 10.11959/j.issn.2096-109x.2018031.

摘要

分析网络动态防御体系下的主机安全威胁必须考虑动态变换给主机脆弱性造成的不确定性。为此，首先，利用随机抽样模型对网络动态防御变换周期和变换空间给主机脆弱性造成的不确定性进行量化，并结合通用漏洞评分系统 CVSS (common vulnerability scoring system)计算入侵者针对单个脆弱性的入侵成功概率；其次，为避免多脆弱性情况下的入侵路径搜索过程出现自环，引入节点访问队列并提出改进的递归深度优先入侵路径搜索算法；然后基于求得的脆弱性入侵成功概率计算多脆弱性多入侵路径情况下的主机安全威胁度；最后，在典型网络动态防御环境中进行实验，验证了方法的可用性和有效性。

Abstract

Calculating the host security threat in network dynamic defense (NDD) situation has to consider the vulnerabilities’ uncertainty because of dynamic mutation.Firstly

the vulnerabilities’ uncertainty caused by the mutation space and the mutation period was calculated by random sampling model

and combined with the CVSS

the attack success probability formula of single vulnerability was derived.Secondly

to avoid self-loop during the path searching process in multiple vulnerabilities situation

an improved recursive depth first algorithm which combined with node visited queue was proposed.Then

the host security threat was calculated based on attack success probability in the situation of multiple vulnerabilities and paths.Finally

approach’s availability and effectiveness were verified by an experiment conducted in a typical NDD situation.

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references

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