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https://issues.apache.org/jira/browse/HIVE-4887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839940#comment-13839940
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Thejas M Nair commented on HIVE-4887:
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[~prasadm] Yes, you are right. I went through the code and realized that
CliDriver directly processes the shell commands and does not use the
CommandProcessor. I was expecting it to work like dfs and other non-sql
statements using CommandProcessor. Thanks for pointing that out!
> hive should have an option to disable non sql commands that impose security
> risk
> --------------------------------------------------------------------------------
>
> Key: HIVE-4887
> URL: https://issues.apache.org/jira/browse/HIVE-4887
> Project: Hive
> Issue Type: Task
> Components: Authorization, Security
> Reporter: Thejas M Nair
>
> Hive's RDBMS style of authorization (using grant/revoke), relies on all data
> access being done through hive select queries. But hive also supports running
> dfs commands, shell commands (eg "!cat file"), and shell commands through
> hive streaming.
> This creates problems in securing a hive server using this authorization
> model. UDF is another way to write custom code that can compromise security,
> but you can control that by restricting access to users to be only through
> jdbc connection to hive server (2).
> (note that there are other major problems such as this one - HIVE-3271)
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