Non-access-stratum request attack in E-UTRAN

Long Term Evolution (LTE) is the evolution of Universal Mobile Telecommunications System (UMTS). LTE revises and improves system architecture from UMTS to provide services that are more efficient. Evolved-UTRAN (E-UTRAN) is the air interface of 3GPP and it is on the upgrade path for LTE mobile networks. E-UTRAN specifies better security architecture to protect users´ information. However, E-UTRAN is still not perfect. This article studies vulnerabilities of non-access-stratum (NAS) of E-UTRAN. We present illustrative attacks to exploit such vulnerabilities and demonstrate the effectiveness and the impact of such attacks on normal users by using our self-developed simulation tool.