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YubiKeys are vulnerable to cloning attacks thanks to newly discovered side channel
(arstechnica.com)
this post was submitted on 03 Sep 2024
214 points (100.0% liked)
Privacy Guides
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Is this because FIDO2 is flawed, the yubikey hardware design is flawed or both?
It’s due to a cryptographic library implementation in a controller used in the yubikey. It’s a third party controller, and this isn’t exclusive to yubikeys either, a shitload of other stuff uses the same controller and is likely vulnerable to the same attack.
Also, the attack requires around $10k worth of equipment and physical access to the yubikey, so while a valid attack vector, it’s also not something to get into a panic about.
It's definitely not something a regular user should panic over. But it's a huge deal since a lot of high security, sensitive targets also rely on the same library.
Definitely. Not to be ignored, but for lots of yubikey users, also not something to be overly worried about.