Servers requesting client cert can cause scan to hang forever if server closes connection

[FestiveKyle]

Describe the bug

If a server requests a client cert but then closes the connection, the scan will never finish. The issue occurs at _detect_client_auth_requirement_with_tls_1_3 under check_connectivity_to_server during the ssl_connection_auth.ssl_client.read(1) step. The client throws an IOError here which doesn't get caught.

Expected behavior

The error would be caught and shown in the results.

Looking at _detect_support_for_tls_1_3, this error would be caught under OSError, perhaps this could be added to _detect_client_auth_requirement_with_tls_1_3 as well?

Python environment (please complete the following information):

• OS: Ubuntu 22.04
• Python version: 3.11.4

Additional context

Image of error:

[nabla-c0d3]

Nice catch! Thanks for the detailed report and PR 👍👍

[nabla-c0d3]

Fixed in v5.2.0.