Detection of PFCP Protocol Based on Fuzz Method

5G as a widely used mobile network, its security is of great significance. PFCP protocol is one of the important protocols that introduced into 5G core network, After the analysis of PFCP protocol and its security threat, this paper profoundly fuzzed the PFCP protocol. In order to improve the efficiency, this paper improves the random Fuzzing test technology, proposes a new data mutation algorithm and frame. By analyzing the test results, we found that the application of the new algorithm made the fuzzing technology greatly improved in terms of efficiency and found security vulnerabilities.