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https://issues.apache.org/jira/browse/HADOOP-7621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13272094#comment-13272094
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Benoy Antony commented on HADOOP-7621:
--------------------------------------
attached patch for 0.22
> alfredo config should be in a file not readable by users
> --------------------------------------------------------
>
> Key: HADOOP-7621
> URL: https://issues.apache.org/jira/browse/HADOOP-7621
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 0.20.205.0, 0.23.0, 0.24.0
> Reporter: Alejandro Abdelnur
> Assignee: Aaron T. Myers
> Priority: Critical
> Fix For: 1.1.0, 2.0.0
>
> Attachments: HADOOP-7621-branch-0.20-security.patch,
> HADOOP-7621-branch-0.20-security.patch, HADOOP-7621.patch, HADOOP-7621.patch,
> HADOOP-7621.patch, hadoop-7621-022.patch
>
>
> [thxs ATM for point this one out]
> Alfredo configuration currently is stored in the core-site.xml file, this
> file is readable by users (it must be as Configuration defaults must be
> loaded).
> One of Alfredo config values is a secret which is used by all nodes to
> sign/verify the authentication cookie.
> A user could get hold of this secret and forge authentication cookies for
> other users.
> Because of this the Alfredo configuration, should be move to a user
> non-readable file.
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