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https://issues.apache.org/jira/browse/CASSANDRA-17365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17517498#comment-17517498
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Brad Schoening commented on CASSANDRA-17365:
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[~smiklosovic] what documentation needs updating? I wasn't able to find it
either of the README.asc files.
> Remove deprecated version specific TLS in CQLSH
> -----------------------------------------------
>
> Key: CASSANDRA-17365
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17365
> Project: Cassandra
> Issue Type: Task
> Components: CQL/Interpreter
> Reporter: Brad Schoening
> Assignee: Brad Schoening
> Priority: Normal
> Fix For: 4.x
>
>
> According to [https://docs.python.org/3/library/ssl.html] use of explicit TLS
> versions v1, v1_1 and v1_2 has been deprecated in Python 3.6+ in favor of
> auto-negotiation of the highest protocol version that both the client and
> server support.
> * {{{}ssl.{}}}{{{}PROTOCOL_TLSv1{}}}
> * {{{}ssl.{}}}{{{}PROTOCOL_TLSv1_1{}}}
> * {{{}ssl.{}}}{{{}PROTOCOL_TLSv1_2{}}}
> The above are deprecated since version 3.6: OpenSSL has deprecated all
> version specific protocols.
> This affects cqlshlib/sslhandling.py and cqlshlib/test/test_sslhandling.py.
> And also config files test/config/
> {sslhandling.config, sslhandling_invalid.config}
>
> "NSA recommends that only TLS 1.2 or TLS 1.3 be used; and that SSL 2.0, SSL
> 3.0, TLS 1.0, and TLS 1.1 not be used"
> [https://media.defense.gov/2021/Jan/05/2002560140/-1/-1/0/ELIMINATING_OBSOLETE_TLS_UOO197443-20.PDF]
> The DataStax driver has addressed this in 3.25 with this update:
> Update security documentation and examples to use PROTOCOL_TLS (PYTHON-1264)
> [https://datastax-oss.atlassian.net/browse/PYTHON-1264]
> [https://github.com/datastax/python-driver/commit/8331eca6cc96d8bd3af2e37bc64693747515c2b6]
> This change will also remove the unit test class test_sslhandling.py which
> only tested version lookups and nothing else with ssl.
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