This Attack Has Been Around for 20 Years — And It’s Back Again With The Bleichenbacher Oracle Attack on VPNs

The Bleichenbacher attack [here] just refuses to go away. It has been known about for 20 years, and has been the core of many attacks on SSL. It also returned in 2017 in the form of ROBOT (Return Of Bleichenbacher’s Oracle Threat, and now at the core of a new VPN vulnerability.