Security Analysis of Critical 5G Interfaces

Abstract

<p>Interfaces play a crucial role in the Fifth Generation (5G) architecture as they interconnect Network Functions (NFs) to exchange data and services. Certain interfaces are particularly critical because they are involved in the exchange of sensitive data or are exposed externally. To the best of our knowledge, no literature work analyzes the 5G security from a network architecture or interface perspective. Therefore, existing research on 5G security may not be helpful when considering a certain component of the network or a specific interface. This paper reviews the security measures recommended by the selected Standardization Development Organizations (SDOs) for critical interfaces and classifies them based on security goals. It also identifies vulnerabilities and threats to these interfaces in the absence of security measures and categorizes them based on STRIDE model and impacted traffic types.</p>

A Vulnerability Assessment of Open-Source Implementations of Fifth-Generation Core Network Functions

“…Additionally, Salazar et al [9] discuss the new cybersecurity threats introduced by 5G SBA, emphasizing the ineffectiveness of previously adopted security and privacy mechanisms in the context of 5G. Mahyoub et al [10] present a detailed 5G security analysis from the perspective of network architecture. They closely examine the critical 5G interfaces and provide a set of possible vulnerabilities and threats that would occur if no proper security mechanisms were set in place.…”

“…Different works on vulnerability analysis of 5G systems have identified threats to various NFs. For example, Mahyoub et al [10] examine critical 5G interfaces, providing a set of possible vulnerabilities and threats. Comprehensive vulnerabilities are also detailed in [27], categorized as shown in Table 1.…”