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Posted to issues-all@impala.apache.org by "Joe McDonnell (Jira)" <ji...@apache.org> on 2022/06/25 00:47:00 UTC
[jira] [Resolved] (IMPALA-11240) Revisit the default value for ssl_cipher_list to eliminate insecure ciphers
[ https://issues.apache.org/jira/browse/IMPALA-11240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joe McDonnell resolved IMPALA-11240.
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Fix Version/s: Impala 4.2.0
Resolution: Fixed
> Revisit the default value for ssl_cipher_list to eliminate insecure ciphers
> ---------------------------------------------------------------------------
>
> Key: IMPALA-11240
> URL: https://issues.apache.org/jira/browse/IMPALA-11240
> Project: IMPALA
> Issue Type: Improvement
> Components: Security
> Affects Versions: Impala 4.1.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Major
> Fix For: Impala 4.2.0
>
>
> The default value for ssl_cipher_list is empty, which uses any cipher supported by the operating system's OpenSSL version. Some older ciphers are known to be weak, and Mozilla's guide to server side SSL settings recommends restricting the SSL ciphers:
> [https://wiki.mozilla.org/Security/Server_Side_TLS]
> In particular, a curated list based on the intermediate compatibility level seems like a reasonable way to improve security. For example, Kudu restricts SSL ciphers to this list:
> [https://github.com/apache/kudu/blob/master/src/kudu/security/security_flags.cc#L30]
> {noformat}
> const char* const SecurityDefaults::SecurityDefaults::kDefaultTlsCiphers =
> "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:"
> "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:"
> "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305";{noformat}
> We should consider doing something similar.
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