Security analysis of DoS attack against the LTE-A system

LTE-Advanced (LTE-A) has become a mature communication system in the world, and its security is attracting more and more attention. Although the LTE-A is significantly improved in functionality and security. However, there are also attacks against the LTE-A network. This paper first studies the specifications of non-access-stratum (NAS) of Evolved UMTS Terrestrial Radio Access Network (E-UTrAn) and uncovers two new denial of service (DoS) vulnerabilities about Tracking Area Update (TAU) procedure. Then we construct the attack scenarios based on the previous analysis. Finally using related devices including mobile phones and eNodeB simulator, we demonstrate the attacks about these vulnerabilities and obtain the corresponding results.