Session-Based Detection of Signaling DoS on LTE Mobile Networks

Abstract

Abstract-In recent years, global cellular network service is being changed rapidly to LTE. However, the fast introduction of LTE has been going with not enough research about security threat so it could have many kinds of vulnerability. Therefore, the research about security threat on 4G network is ongoing in many countries. Particularly, in the situation where domestic subscribers are increasing rapidly, the security threats which are hindering stability and usability could make a fatal effect on many users. 4G network should consider the feature of mobile network to keep 4G network stable. Because mobile network has limited radio resources, it releases the radio resource which is not used in selected time and reallocates when requesting the data transmission. Many signaling messages are transferred in the network entities to allocate or release the radio resource. In this paper, it will introduce the technology to detect signaling DoS traffic hindering the stability and usability of network entities managing the radio resources by huge signaling message from the repetitive wireless connection/release message.Index Terms-Denial of service, LTE, signaling DoS, virtual setup, 4G.

5G Security Threat Assessment in Real Networks

“…This may cause excessive traffic load on a certain mobile carrier’s core network. One attach request can create maximum eight GTP-C messages, which brings 8 times the amount of traffic to the CN function in the core network in proportion to one malicious manipulation done by the attacker [ 25 ].…”