[jira] [Updated] (AMBARI-21146) Knox JAAS configuration file should not allow the Kerberos ticket cache to be used when establishing its identity on startup

["Attila Magyar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-21146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Attila Magyar updated AMBARI-21146:
-----------------------------------
    Status: Patch Available  (was: Open)

> Knox JAAS configuration file should not allow the Kerberos ticket cache to be used when establishing its identity on startup
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-21146
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21146
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 1.7.0
>            Reporter: Attila Magyar
>            Assignee: Attila Magyar
>             Fix For: 2.5.2
>
>         Attachments: AMBARI-21146_branch2.5.patch, AMBARI-21146.patch
>
>
> The JAAS configuration for Knox allows the interactive user's ticket cache to be used to establish the service's identity when starting up. This is problematic and potentially confusing. To prevent this, the JAAS config should be set as follows:
> {code}
> com.sun.security.jgss.initiate {
>   com.sun.security.auth.module.Krb5LoginModule required
>   renewTGT=false
>   doNotPrompt=true
>   useKeyTab=true
>   keyTab="/etc/security/keytabs/knox.service.keytab"
>   principal="knox/c6403.ambari.apache.org@EXAMPLE.COM"
>   storeKey=true
>   useTicketCache=false;
> };
> {code}
> Note: the keytab file and principal name values need to be set based on the relevant Kerberos configuration.



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