New Blast-RADIUS attack breaks 30-year-old protocol used in networks everywhere
Briefly

One of the most widely used network protocols is vulnerable to a newly discovered attack that can allow adversaries to gain control over a range of environments, including industrial controllers, telecommunications services, ISPs, and all manner of enterprise networks.
RADIUS, despite its ancient origins, continues to be pivotal for managing a broad spectrum of interactions from VPN access to mobile data offloading and critical infrastructure authentication.
Read at Ars Technica
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