REGULAR PAPERS An Approach to Resisting Malformed and Flooding Attacks on SIP Servers Ming-Yang Su and Chen-Han Tsai A Design Algorithm for QoS Network with Flow Delay Control Kairat Jaroenrat Pairwise Co-betweenness for Several Types of Network
نویسندگان
چکیده
As a result of its low costs and high degree of integration with other services, Voice over Internet Protocol (VoIP) has become very widely used, while Session Initiation Protocol (SIP) is one of the most important protocols for providing the VoIP service. Since SIP is an open source code with a simple structure and high expansibility, SIP servers are more vulnerable to attack by SIP messages malformed in order to stunt the server, or by a flood of SIP messages causing server congestion or shutdown. The system proposed in this paper therefore has two functions; one is to filter malformed messages that conflict with the SIP protocol, and the other is to determine whether an SIP server is under flooding attack. This study used the Chisquare test, usually applied in statistics, to identify flooding attacks. The proposed system can automatically modify an SIP server’s blacklist to deter an attacker’s subsequent
منابع مشابه
An Approach to Resisting Malformed and Flooding Attacks on SIP Servers
As a result of its low costs and high degree of integration with other services, Voice over Internet Protocol (VoIP) has become very widely used, while Session Initiation Protocol (SIP) is one of the most important protocols for providing the VoIP service. Since SIP is an open source code with a simple structure and high expansibility, SIP servers are more vulnerable to attack by SIP messages m...
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IMS (IP Multimedia Subsystem) network is considered as an NGN (Next Generation Network) core networks by ETSI. Decomposition of IMS core network has resulted in a rapid increase of control and signaling message that makes security a required capability for IMS commercialization. The control messages are transmitted using SIP (Session Initiation Protocol) which is an application layer protocol. ...
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The extent and diversity of systems provided by IP networks have made various technologies to approach integrating various types of access networks and converting to next generation network. The Session Initiation Protocol (SIP) with respect to facilities such as being in text form, end-to-end connection, independence from the type of transmitted data, and supporting various forms of transmissi...
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The SIP protocol was standardized by the IETF at the application layer for initiating, managing, and terminating multimedia sessions and has been widely used as the main signaling protocol on both the Internet and VoIP networks. Most challenges in this protocol are overload and lack of proper state distribution. These challenges cause a wide range of next-generation network users to face a shar...
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A Mesh Network Topological Optimization and Routing II (MENTOR-II) algorithm is a low complexity and efficient network design algorithm for IP networks with OSPF routing protocol in which appropriate link weights are assigned to the installed links such that the traffic always routes on the path with minimum distance. However, it should be noted that the flow delay of traffic assigned by MENTOR...
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