Cybersecurity researchers have discovered a critical security vulnerability in RADIUS, a widely used network authentication protocol dating back to the 1990s that’s still in widespread use today.

The Blast-RADIUS attack flow. More than 90 vendors have been involved in a coordinated disclosure and issued security bulletins. A widely used security protocol that dates back to the days of dial-up ...

A design flaw in the decades-old RADIUS authentication protocol allows attackers to take over network devices from a man-in-the-middle position by exploiting MD5 hash collisions. The “secure enough” ...