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https://issues.apache.org/jira/browse/ZOOKEEPER-2014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Han updated ZOOKEEPER-2014:
-----------------------------------
    Description: 
ZOOKEEPER-107 introduces reconfiguration support via the reconfig() call. We 
should, at the very least, ensure that only the Admin can reconfigure a 
cluster. Perhaps restricting access to /zookeeper/config as well, though this 
is debatable. Surely one could ensure Admin only access via an ACL, but that 
would leave everyone who doesn't use ACLs unprotected. We could also force a 
default ACL to make it a bit more consistent (maybe).

Finally, making reconfig() only available to Admins means they have to run with 
zookeeper.DigestAuthenticationProvider.superDigest (which I am not sure if 
everyone does, or how would it work with other authentication providers). 

Review board https://reviews.apache.org/r/51546/

  was:
ZOOKEEPER-107 introduces reconfiguration support via the reconfig() call. We 
should, at the very least, ensure that only the Admin can reconfigure a 
cluster. Perhaps restricting access to /zookeeper/config as well, though this 
is debatable. Surely one could ensure Admin only access via an ACL, but that 
would leave everyone who doesn't use ACLs unprotected. We could also force a 
default ACL to make it a bit more consistent (maybe).

Finally, making reconfig() only available to Admins means they have to run with 
zookeeper.DigestAuthenticationProvider.superDigest (which I am not sure if 
everyone does, or how would it work with other authentication providers). 


> Only admin should be allowed to reconfig a cluster
> --------------------------------------------------
>
>                 Key: ZOOKEEPER-2014
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2014
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.5.0
>            Reporter: Raul Gutierrez Segales
>            Assignee: Michael Han
>            Priority: Blocker
>             Fix For: 3.5.3
>
>         Attachments: ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch, 
> ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch
>
>
> ZOOKEEPER-107 introduces reconfiguration support via the reconfig() call. We 
> should, at the very least, ensure that only the Admin can reconfigure a 
> cluster. Perhaps restricting access to /zookeeper/config as well, though this 
> is debatable. Surely one could ensure Admin only access via an ACL, but that 
> would leave everyone who doesn't use ACLs unprotected. We could also force a 
> default ACL to make it a bit more consistent (maybe).
> Finally, making reconfig() only available to Admins means they have to run 
> with zookeeper.DigestAuthenticationProvider.superDigest (which I am not sure 
> if everyone does, or how would it work with other authentication providers). 
> Review board https://reviews.apache.org/r/51546/



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