New Architecture, New Challenges: Service Security Issues in the 5G Core Network and How to Detect Them

Abstract: 5G is the fifth-generation technology standard for mobile communication networks. The service-based architecture (SBA) of the 5G core network is designed with a cloud-native approach. By borrowing the "microservice" concept implemented in the IT field and dividing a whole entity with multiple functions into individual parts, each providing an...

Linux Kernel Arbitrary Code Execution Vulnerability (CVE-2021-3490) Threat Alert

Overview Recently, NSFOCUS CERT found that a security researcher published details and the PoC of an arbitrary code execution vulnerability (CVE-2021-3490) in eBPF and exploited this vulnerability to cause local privilege escalation on Ubuntu 20.10 and 21.04. This vulnerability exists because the eBPF ALU32 bounds tracking for bitwise ops (AND,...

Cloud Native Security in Infrastructure Construction

Cloud native security is the development trend of cloud security in the coming years. On the one hand, inherent security of cloud native is worthy of in-depth study. On the other hand, with the reconstruction and upgrade of infrastructure, there is a clear trend towards the integration of cloud native technologies...

NSFOCUS Attends APEX CBET II

BEIJING. – Sep 14, 2021 The 2nd APEC Cross-Border E-Commerce Training (APEC CBET II) is held at 9:00am-11:30am (GMT+8) on September 8, 15 & 22, 2021 by the Department of International Trade and Economic Affairs of the Ministry of Commerce of China, supported by DHgate. This event is facilitated specifically...

API Security in Cloud Native Applications

Cloud native applications, based on the microservice architecture, interact with each other by sending requests or response through APIs. Arguably, API communications play an essential role in interactions of cloud native applications. Therefore, API security is an indispensable part of cloud native application security. API-related security issues shown below have...

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