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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17717) Incorrect ZK ACL set for HBase superuser
Date Mon, 06 Mar 2017 19:14:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15897861#comment-15897861
] 

Josh Elser commented on HBASE-17717:
------------------------------------

re-ping [~mantonov] and [~busbey] for landing this issue on your respective branches..

> Incorrect ZK ACL set for HBase superuser
> ----------------------------------------
>
>                 Key: HBASE-17717
>                 URL: https://issues.apache.org/jira/browse/HBASE-17717
>             Project: HBase
>          Issue Type: Bug
>          Components: security, Zookeeper
>            Reporter: Shreya Bhat
>            Assignee: Josh Elser
>             Fix For: 2.0.0, 1.4.0, 1.3.1, 1.1.10, 1.2.6
>
>         Attachments: HBASE-17717.001.0.98.patch, HBASE-17717.001.branch-1.1.patch, HBASE-17717.001.patch
>
>
> Shreya was doing some testing of a deploy of HBase, verifying that the ZK ACLs were actually
set as we expect (yay, security).
> She noticed that, in some cases, we were seeing multiple ACLs for the same user.
> {noformat}
> 'world,'anyone
> : r
> 'sasl,'hbase
> : cdrwa
> 'sasl,'hbase
> : cdrwa
> {noformat}
> After digging into this (and some insight from the mighty [~enis]), we realized that
this was happening because of an overridden value for {{hbase.superuser}}. However, the ACL
value doesn't match what we'd expect to see (as hbase.superuser was set to {{cstm-hbase}}).
> After digging into this code, it seems like the {{auth}} ACL scheme in ZooKeeper does
not work as we expect.
> {code}
>       if (superUser != null) {
>         acls.add(new ACL(Perms.ALL, new Id("auth", superUser)));
>       }
> {code}
> In the above, the {{"auth"}} scheme ignores any provided "subject" in the {{Id}} object.
It *only* considers the authentication of the current connection. As such, our usage of this
never actually sets the ACL for the superuser correctly.



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