[jira] [Updated] (CASSANDRA-16695) cqlsh should prefer newer TLS version by default

["Justin Chu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-16695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Chu updated CASSANDRA-16695:
-----------------------------------
    Labels: cqlsh  (was: )

> cqlsh should prefer newer TLS version by default
> ------------------------------------------------
>
>                 Key: CASSANDRA-16695
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16695
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tool/cqlsh
>            Reporter: Justin Chu
>            Priority: Normal
>              Labels: cqlsh
>
> Some new JDK releases started to disable TLSv1.0 and TLSv1.1.
> [https://www.oracle.com/java/technologies/javase/8u291-relnotes.html]
>  
> However, the code in:
> [https://github.com/apache/cassandra/blob/trunk/pylib/cqlshlib/sslhandling.py#L56-L65]
> is defaulting to those rather old versions,
> which could lead to the following problem:
> {code:java}
> ('Unable to connect to any servers', {'10.101.34.89:9042': error(1, u"Tried connecting to [('10.101.34.89', 9042)]. Last error: [SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:618)")}) {code}
>  
> Python2 default TLS protocol
> [https://docs.python.org/2/library/ssl.html#ssl.PROTOCOL_TLS]
> Python3 default TLS protocol
> [https://docs.python.org/3/library/ssl.html#ssl.PROTOCOL_TLS]
>  
>  



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