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https://issues.apache.org/jira/browse/CASSANDRA-18508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17874008#comment-17874008
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Doug Rohrer commented on CASSANDRA-18508:
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I think the best way forward is to make sure IsolatedJMX can support SSL -
there's a +lot+ of pain that went into making IsolatedJMX work, and I'm not
sure how easy it would be to make it just use JMXServerUtils, although
obviously the best of both worlds would be to make the code reusable in
JMXServerUtils so IsolatedJMX could just call some portion of it.
> Sensitive JMX SSL configuration options can be easily exposed
> -------------------------------------------------------------
>
> Key: CASSANDRA-18508
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18508
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Encryption, Local/Config
> Reporter: Anthony Grasso
> Assignee: Maulin Vasavada
> Priority: Normal
> Fix For: 5.x
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We need a way to specify sensitive JMX SSL configuration options to avoid
> them being easily exposed.
> When encrypting the JMX connection the passwords for the key and trust stores
> must be specified using the {{javax.net.ssl.keyStorePassword}} and
> {{javax.net.ssl.trustStorePassword}} options respectively in the
> _cassandra-env.sh_ file. After Cassandra is started it is possible to see the
> passwords by looking the running process ({{ps aux | grep "cassandra"}}).
> Java 8 has the ability to specify a configuration file that can contain these
> security sensitive settings using the {{com.sun.management.config.file}}
> argument. However, despite what the documentation
> ([https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html#gdevf])
> says, both the {{com.sun.management.jmxremote}} and
> {{com.sun.management.jmxremote.port}} arguments need to be defined in the
> _cassandra-env.sh_ for the JVM to read the contents of the file.
> The problem with defining the {{com.sun.management.jmxremote.port}} argument
> is it conflicts with the {{cassandra.jmx.remote.port}} argument. Even if the
> port numbers are different, attempting an encrypted JMX connection using
> {{nodetool}} fails and we see a {{ConnectException: 'Connection refused
> (Connection refused)'}} error.
> One possible way to fix this is to introduce a new option that would allow a
> file to be passed containing the JMX encryption options.
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