系统仿真学报 ›› 2015, Vol. 27 ›› Issue (11): 2770-2777.

• 信息、控制、决策与仿真 • 上一篇    下一篇

面向防火墙和IDS/IPS协同防御的策略冲突检测算法

邱松1, 焦健2, 张东阳3   

  1. 1.襄垣和信发电有限公司工程部,太原 030001;
    2.北京信息科技大学计算机学院,北京 100192;
    3.华北电力大学计算机学院,保定 071002
  • 收稿日期:2014-04-19 修回日期:2014-07-27 出版日期:2015-11-08 发布日期:2020-08-05
  • 作者简介:邱松(1982-),男,河北大城县,学士,工程师,研究方向为网络及信息管理;焦健(1978-),男,博士,副教授,研究方向为网络安全;张东阳(1981-),男,硕士,研究方向为计算机测控技术。
  • 基金资助:
    国家自然科学基金项目(61370065)

Policies Conflict Detection Algorithm Coordinated Defense-oriented of Firewall and IDS/IPS

Qiu Song1, Jiao Jian2, Zhang Dongyang3   

  1. 1. Department of Engineering, Xiangyuan Hexin Power Co. Ltd. , Taiyuan 030001, China;
    2. Department of Computer, Beijing Information Science & Technology University. Beijing 100192, China;
    3. Department of Computer, North China Electric Power University, Baoding 071002, China
  • Received:2014-04-19 Revised:2014-07-27 Online:2015-11-08 Published:2020-08-05

摘要: 为应对分布式、复杂的网络攻击威胁,防火墙和IDS(Intrusion Detection System)/IPS(Intrusion Prevention System)协同防御的需求越来越迫切。由于IDS/IPS对入侵判断不确定等问题的存在,当防火墙策略和IDS/IPS策略中的规则对同样数据包执行的动作矛盾时,会产生冲突。冲突会导致允许非法访问或者阻断合法访问。通过研究面向防火墙和IDS/IPS协同防御的策略冲突检测算法。给出了防火墙策略和IDS/IPS策略的语义模型,实现了策略冲突的分类,设计基于OBDD(ordered binary decision diagram,有序决策二叉图)的策略冲突检测算法,在实际场景下验证了算法的正确性和可扩展性,并分析了冲突的分布比例。

关键词: 防火墙, 协同防御, 冲突检测, 有序决策二叉图

Abstract: Coping with the distributed and complex threaten of networking attack, the requirement of coordinated defense of Firewall and IDS/IPS are becoming more and more urgent. As the existence of uncertainty of the judgment of Intrusion performed by IDS/IPS, Firewall and IDS/IPS often perform contradict action, that the same package matched the both rules of Firewall and IDS/IPS, and conflict arose, which would lead to illegal access control or deny of legal access control. The policies conflict detection algorithm of coordinated defense of Firewall and IDS/IPS were researched. The semantic models of firewall policy and IDS/IPS policy were proposed, the classification of the policies conflicts was proposed, and the conflicts detection algorithm of policies were proposed using OBDD (ordered binary decision diagram). The experiment demonstrates the correctness and scalability of the algorithm, and the proportion of the conflicts in real network scenario.

Key words: firewall, coordinated defense, conflict detection, ordered binary decision diagram

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