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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14146) KerberosAuthenticationHandler should authenticate with SPN in AP-REQ
Date Fri, 23 Jun 2017 13:33:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daryn Sharp updated HADOOP-14146:
---------------------------------
    Status: Patch Available  (was: Reopened)

> KerberosAuthenticationHandler should authenticate with SPN in AP-REQ
> --------------------------------------------------------------------
>
>                 Key: HADOOP-14146
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14146
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.5.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 2.9.0, 3.0.0-alpha4, 2.8.2
>
>         Attachments: HADOOP-14146.1.patch, HADOOP-14146.2.patch, HADOOP-14146.3.patch,
HADOOP-14146.addendum.patch, HADOOP-14146.patch
>
>
> Many attempts (HADOOP-10158, HADOOP-11628, HADOOP-13565) have tried to add multiple SPN
host and/or realm support to spnego authentication.  The basic problem is the server tries
to guess and/or brute force what SPN the client used.  The server should just decode the SPN
from the AP-REQ.



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