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https://issues.apache.org/jira/browse/HIVE-20607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623183#comment-16623183
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Sankar Hariappan commented on HIVE-20607:
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[~ekoifman], [~sershe]
Yes, this patch is for handling SQL injection issues. And as Sergey mentioned,
PreparedStatement,setString does some sanity checks to catch any possible SQL
injection issues.
> TxnHandler should use PreparedStatement to execute direct SQL queries.
> ----------------------------------------------------------------------
>
> Key: HIVE-20607
> URL: https://issues.apache.org/jira/browse/HIVE-20607
> Project: Hive
> Issue Type: Bug
> Components: Standalone Metastore, Transactions
> Affects Versions: 4.0.0
> Reporter: Sankar Hariappan
> Assignee: Sankar Hariappan
> Priority: Major
> Labels: ACID
> Fix For: 4.0.0
>
>
> TxnHandler uses direct SQL queries to operate on Txn related databases/tables
> in Hive metastore RDBMS.
> Most of the methods are direct calls from Metastore api which should be
> directly append input string arguments to the SQL string.
> Need to use parameterised PreparedStatement object to set these arguments.
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