A complete view of the core
An in-depth analysis of the services and infrastructure of the 5G core, across the three deployment models.
One of Spain's leading operators was implementing a new Standalone 5G core, built with several vendors on three different deployment models.
Ethon Shield reviewed its infrastructure, configuration and protocols, identified vulnerabilities early in the implementation and gave the team insight into how effective its IDS/IPS was.

How the core was built, and the four areas the audit assessed across all of it.
Network functions ran on three deployment models at the same time.
Whether security was built into every level of the platforms running the network functions.
Telecom-specific parameters such as encryption algorithms and visibility settings.
Whether messages crossing the network stayed confidential and intact, on legacy and new protocols.
How effective the intrusion detection and prevention implementation was.
Working with every team. Different teams owned different parts of the core. We kept all of them involved, so each team's concerns were reflected in one shared security strategy.
An in-depth analysis of the services and infrastructure of the 5G core, across the three deployment models.
Security weaknesses identified and addressed early in the implementation process.
A clear picture of how effective its intrusion detection and prevention was, to strengthen it where needed.
The operator is anonymised. Detailed findings and technical evidence are not published.
Talk to our team about an independent assessment of your 5G core: infrastructure, configuration and protocols.

The Client
Our client is one of the leading telecom operators in Spain, renowned for its innovative approach and cutting-edge implementation of a standalone 5G network.
With a commitment to delivering high-speed connectivity and advanced services, the client sought to enhance the security of its new 5G core network, where complexity and heterogeneity challenged the process of assessing and confguring such infrastructure.


Implementing a 5G core network is inherently complex, involving various architectures and technologies.
In this project, the client's 5G network infrastructure encompassed a combination of Containers as a Service (CaaS), Network Functions Virtualization (NFV), and CaaS over NFV. This diverse infrastructure, with multiple vendors, created a challenging environment for assessing and verifying the security confgurations of the network.


The intricacies of microservices and container orchestration added another layer of complexity, necessitating a comprehensive security strategy that could adapt to the dynamic nature of the 5G ecosystem. Additionally, the integration of both legacy and modern protocols such as SCTP and HTTP/2 required thorough evaluation to ensure robust security measures were in place.
Given the complexity of 5G networks, where various teams were responsible for diferent aspects of the infrastructure, a coordinated approach was necessary to ensure that all stakeholders were aligned and that their specifc concerns were thoroughly addressed. By fostering an environment of open dialogue and collaboration, Ethon Shield was able to create a comprehensive security strategy that refected the diverse needs of the organization and enhanced the overall efectiveness of the project.

Ethon Shields' team developed a unique methodology tailored to assess the security confgurations across all facets of the 5G infrastructure.
Recognizing the critical role of Kubernetes and containers in this technology landscape, we focused on the NFV/CaaS paradigm to ensure that security was embedded at every virtualization level.
Furthermore, our approach also included a thorough assessment of both new and legacy protocols, such as the emerging HTTP/2, to verify the confdentiality and integrity of messages transmitted across the network.
We meticulously evaluated essential parameters specifc to the telecommunications industry, including encryption algorithms and visibility confgurations, to ensure compliance with industry standards and best practices.
