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文中详细分析了SIP协议的常见漏洞和IMS的安全机制,并以此为基础分析研究了在IMS中应用SIP协议的漏洞实施攻击的可行性。从分析结果可以看出,IMS的安全机制能够拒绝除了DOS攻击之外的所有的基于SIP漏洞的攻击。最后对DOS攻击进行了仿真验证。
In this paper, the common vulnerabilities of SIP protocol and the security mechanism of IMS are analyzed in detail, and based on this, the feasibility of exploiting SIP vulnerabilities in IMS is analyzed and studied. It can be seen from the analysis results that the IMS security mechanism can reject all SIP-based vulnerabilities except DOS attacks. At last, the DOS attack is verified by simulation.