Security researcher says Azure Tags are security threat but Microsoft disagrees

Tenable recently identified a notable security issue within Microsoft’s Azure Network service tags. While Tenable classified this as a high-severity vulnerability, Microsoft disagreed with this classification. Despite their differences, both companies jointly disclosed the security issue on Monday. 

Azure is Microsoft’s comprehensive public cloud platform, offering over 200 services. These include Platform as a Service (PaaS) for application development and operation, Infrastructure as a Service (IaaS) for virtual machines, networking, and storage, and Managed Database Services for simplified database management. Azure supports developers, IT professionals, and business owners, providing the tools to build, run, and manage applications across multiple environments, including on-premises and edge locations. This flexibility and scalability make Azure adaptable to a wide range of organizational needs. 

Azure service tags represent groups of IP addresses for various Azure services, streamlining the creation of access control rules. These tags can be used in firewall settings to permit traffic from specific Azure services. However, Tenable uncovered a serious flaw: attackers could potentially bypass firewall rules that rely exclusively on service tags by masquerading as tr

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