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https://issues.apache.org/jira/browse/CASSANDRA-18508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17882928#comment-17882928
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Stefan Miklosovic commented on CASSANDRA-18508:
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OK, thanks for keep us informed. [~drohrer] would you mind to overlook this
one in general?
> 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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