[
https://issues.apache.org/jira/browse/HDFS-11069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16147517#comment-16147517
]
Wei-Chiu Chuang commented on HDFS-11069:
----------------------------------------
Hi [~kihwal], I'm just curious, for security concerns, should NameNode also
tighten its RPC authorization as well? Any reason why not? One reason might be
the NameNode HA, but I wonder if there are other rationales too. Thanks.
> Tighten the authorization of datanode RPC
> -----------------------------------------
>
> Key: HDFS-11069
> URL: https://issues.apache.org/jira/browse/HDFS-11069
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode, security
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Fix For: 2.7.4, 3.0.0-alpha2
>
> Attachments: HDFS-11069.patch
>
>
> The current implementation of {{checkSuperuserPrivilege()}} allows the
> datanode user from any node to be recognized as a super user. If one
> datanode is compromised, the intruder can issue {{shutdownDatanode()}},
> {{evictWriters()}}, {{triggerBlockReport()}}, etc. against all other
> datanodes. Although this does not expose stored data, it can cause service
> disruptions.
> This needs to be tightened to allow only the local datanode user.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
