How to diagnose SS7 Protocol Vulnerability in Roaming Networks

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Seongmin Park


Roaming network attack, SS7 protocol, Mobile security threats.


As cellular networks spread to various operators in various countries, access to roaming networks by operators in other countries has become easier than before. As security attacks pretending to be roaming operators increased as the number of security attacks increased as the number of hours that were closed between trusted operators was gradually operated openly. By analyzing SS7 vulnerabilities in roaming networks and reenacting them through simulation, this study establishes a security threat scenario in a real commercial communication environment and builds a pre-simulation test environment that can identify and respond to the presence or absence of proactive measures through security analysis. The simulation test environment can be applied to the actual operational environment to reduce attack damage through pre-defense measures by preparing countermeasures against possible security attacks.