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Posted to common-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2016/10/11 14:40:20 UTC
[jira] [Commented] (HADOOP-13707) If kerberos is enabled while HTTP
SPNEGO is not configured, some links cannot be accessed
[ https://issues.apache.org/jira/browse/HADOOP-13707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15565604#comment-15565604 ]
Allen Wittenauer commented on HADOOP-13707:
-------------------------------------------
/logs was specifically blocked way back when due to the sensitive nature of the content. Non-admin users shouldn't be looking at it at all and admin users have access from the shell.
> If kerberos is enabled while HTTP SPNEGO is not configured, some links cannot be accessed
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-13707
> URL: https://issues.apache.org/jira/browse/HADOOP-13707
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Yuanbo Liu
> Labels: security
> Attachments: HADOOP-13707.001.patch
>
>
> In {{HttpServer2#hasAdministratorAccess}}, it uses `hadoop.security.authorization` to detect whether HTTP is authenticated.
> It's not correct, because enabling Kerberos and HTTP SPNEGO are two steps. If Kerberos is enabled while HTTP SPNEGO is not, some links cannot be accessed, such as "/logs", and it will return error message as below:
> {quote}
> HTTP ERROR 403
> Problem accessing /logs/. Reason:
> User dr.who is unauthorized to access this page.
> {quote}
> We should use {{hadoop.http.authentication.type}} instead of {{hadoop.security.authorization}} to detect whether HTTP authentication is enabled, if the value of {{hadoop.http.authentication.type}} equals `simple`, anybody has administrator access.
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