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https://issues.apache.org/jira/browse/SENTRY-1034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15122145#comment-15122145
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Istvan Vajnorak commented on SENTRY-1034:
-----------------------------------------

Hello [~anneyu.apache] please find my answers below:

1. allianz_mval has only rights to connect to allianz_mvaldb (and to default by 
default)
2. For any user, if you manage to find a db that exists in the warehouse, then 
it will let it in
3. asdasdasdasd is just a trash string

Sorry for not clarifying these upfront.

> Security leak in beeline connect command
> ----------------------------------------
>
>                 Key: SENTRY-1034
>                 URL: https://issues.apache.org/jira/browse/SENTRY-1034
>             Project: Sentry
>          Issue Type: Bug
>          Components: Core
>            Reporter: Istvan Vajnorak
>
> A possible info leak in the way how beeline connects to databases and uses 
> the ACLs to prevent seeing unauthorised databases and tables.
> It turns out that one can connect to a database that one should not see, but 
> listing it afterwards gives no tables. This is still somewhat a security 
> breach as an attacker can gain insight what databases exist.
> The way the problem got identified:
> root@prod-vm-cdh-mgr-01 ~]# kinit -kt ~/allianz_mval.keytab allianz_mval 
> [root@prod-vm-cdh-mgr-01 ~]# beeline 
> Beeline version 1.1.0-cdh5.4.8 by Apache Hive 
> beeline> !connect 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC 
> scan complete in 6ms 
> Connecting to 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC 
> Enter username for 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC: 
> Enter password for 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC: 
> Connected to: Apache Hive (version 1.1.0-cdh5.4.8) 
> Driver: Hive JDBC (version 1.1.0-cdh5.4.8) 
> Transaction isolation: TRANSACTION_REPEATABLE_READ 
> 0: jdbc:hive2://vm-cdh-01:10000/srive> show databases; 
> -----------------+
> database_name
> -----------------+
> allianz_mvaldb
> default
> -----------------+ 
> 2 rows selected (0.726 seconds) 
> 0: jdbc:hive2://vm-cdh-01:10000/srive> show tables; 
> -----------+
> tab_name
> -----------+ 
> -----------+ 
> No rows selected (1.033 seconds) 
> 0: jdbc:hive2://vm-cdh-01:10000/srive> !quit 
> Closing: 0: 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC 
> [root@prod-vm-cdh-mgr-01 ~]# beeline 
> Beeline version 1.1.0-cdh5.4.8 by Apache Hive 
> beeline> !connect 
> jdbc:hive2://vm-cdh-01:10000/asdasdasdasd;principal=hive/_HOST@MITKDC 
> scan complete in 2ms 
> Connecting to 
> jdbc:hive2://vm-cdh-01:10000/asdasdasdasd;principal=hive/_HOST@MITKDC 
> Enter username for 
> jdbc:hive2://vm-cdh-01:10000/asdasdasdasd;principal=hive/_HOST@MITKDC: 
> Enter password for 
> jdbc:hive2://vm-cdh-01:10000/asdasdasdasd;principal=hive/_HOST@MITKDC: 
> Connected to: Apache Hive (version 1.1.0-cdh5.4.8) 
> Driver: Hive JDBC (version 1.1.0-cdh5.4.8) 
> Transaction isolation: TRANSACTION_REPEATABLE_READ 
> 0: jdbc:hive2://vm-cdh-01:10000/asdas> show tables; 
> Error: Error while processing statement: FAILED: Execution Error, return code 
> 1 from org.apache.hadoop.hive.ql.exec.DDLTask. Database does not exist: 
> asdasdasdasd (state=08S01,code=1) 
> 0: jdbc:hive2://vm-cdh-01:10000/asdas> !connect 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC 
> Connecting to 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC 
> Enter username for 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC: 
> Enter password for 
> jdbc:hive2://vm-cdh-01:10000/sriveradb;principal=hive/_HOST@MITKDC: 
> Connected to: Apache Hive (version 1.1.0-cdh5.4.8) 
> Driver: Hive JDBC (version 1.1.0-cdh5.4.8) 
> Transaction isolation: TRANSACTION_REPEATABLE_READ 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> show tables; 
> -----------+
> tab_name
> -----------+ 
> -----------+ 
> No rows selected (1.09 seconds) 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> !quit; 
> Unknown command: quit; 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> !quit; 
> Unknown command: quit; 
> 1: jdbc:hive2://vm-cdh-01:10000/srive> !quit



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