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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15132) Master region merge RPC should authorize user request
Date Thu, 21 Jan 2016 17:16:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15110937#comment-15110937
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Ted Yu commented on HBASE-15132:
--------------------------------

bq. We don't want a post hook?

I am not aware of use case which needs the post hook. When the requirement comes, we can add
later.

The rest of review comments are addressed in patch v2.

> Master region merge RPC should authorize user request
> -----------------------------------------------------
>
>                 Key: HBASE-15132
>                 URL: https://issues.apache.org/jira/browse/HBASE-15132
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: HBASE-15132.v1.patch
>
>
> The normal flow for region merge is:
> 1. client sends a master RPC for dispatch merge regions
> 2. master moves the regions to the same regionserver
> 3. master calls mergeRegions RPC on the regionserver. 
> For user initiated region merge, MasterRpcServices#dispatchMergingRegions() is called
by HBaseAdmin.
> There is no coprocessor invocation in step 1.
> Step 3 is carried out in the "hbase" user context.
> This leaves potential security hole - any user without proper authorization can merge
regions of any table.
> Thanks to Enis who spotted this flaw first.



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