eBay / UAF

UAF - Universal Authentication Framework
Apache License 2.0
280 stars 151 forks source link

Inadequate AuthenticatorRecord verification #51

Open egolaszewski opened 1 year ago

egolaszewski commented 1 year ago

This implementation of UAF, which appears to be FIDO certified, fails to correctly verify authenticator records and does not support TLS channel binding, which is essential for resisting certain man-in-the-middle attacks.

Notably, the implementation fails to verify any of the final challenge parameter (fcp) fields, potentially verifying attestations that do not even attest the appropriate challenge.