SSLlabs.com test fails about mbedtls HOT 11 OPEN

Hi! Sorry for the late reply. I've received the emails - I was sidetracked a bit by unrelated tasks, but I'm looking into the issue.

from mbedtls.

Hi! Thanks for reporting this issue.

Could you help us debug this by providing some more information about exactly which SSLLabs tests are failing?

As far as I can tell, SSLLabs is just reporting an "Unexpected Failure", which they claim is usually caused by having multiple "Multiple TLS servers behind the same IP address".

Also, it looks like the download link for the unreleased Hiawatha 11.6 is broken.

from mbedtls.

The test fails after saying 'Testing renegotiation'. Does that help? I can share a tcpdump of the scan. I'm willing to help, let me know what you need.

The download link was a http:// link by mistake. Changed it to https://. Should work.

from mbedtls.

Yeah, a tcpdump would be great! Ideally both of the failing TLS 1.2+1.3 and the working TLS 1.2 only and TLS 1.3 only test sessions.

Also, could you try running the test with MBEDTLS_SSL_RENEGOTIATION disabled in the 1.2+1.3 config? Just to quickly check if the issue is indeed in the renegotiation code, or if that just happens to be the last test that succeeded.

from mbedtls.

I use mbedtls_ssl_conf_renegotiation(&client_config, MBEDTLS_SSL_RENEGOTIATION_DISABLED) to disable it. Would that be the same?

To what e-mail address can I send the tcpdump?

from mbedtls.

In principle it should be equivalent. Please send the tcpdump to [email protected]

from mbedtls.

Could you also enable TLS debugging in MbedTLS and send me the logs?

from mbedtls.

TCPdumps for TLS1.2 only, TLS1.3 only and both TLS1.2 and TLS1.3 have been sent. I've added the corresponding ssllabs.com output. I've also send a Mbed TLS debug logfile of the failing both-TLS1.2-and-TLS1.3 test.

from mbedtls.

Mail received? What's next?

from mbedtls.

Anything yet?

from mbedtls.

Any status update?

from mbedtls.