A malicious TLS1.2 server can force a TLS1.3 client with...
Moderate severity
Unreviewed
Published
Aug 27, 2024
to the GitHub Advisory Database
•
Updated Aug 27, 2024
Description
Published by the National Vulnerability Database
Aug 27, 2024
Published to the GitHub Advisory Database
Aug 27, 2024
Last updated
Aug 27, 2024
A malicious TLS1.2 server can force a TLS1.3 client with downgrade capability to use a ciphersuite that it did not agree to and achieve a successful connection. This is because, aside from the extensions, the client was skipping fully parsing the server hello. https://doi.org/10.46586/tches.v2024.i1.457-500
References