[jira] [Updated] (KAFKA-3396) Unauthorized topics are returned to the user

["Ismael Juma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-3396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ismael Juma updated KAFKA-3396:
-------------------------------
    Fix Version/s: 0.10.0.1

> Unauthorized topics are returned to the user
> --------------------------------------------
>
>                 Key: KAFKA-3396
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3396
>             Project: Kafka
>          Issue Type: Bug
>          Components: security
>            Reporter: Grant Henke
>            Assignee: Edoardo Comar
>             Fix For: 0.10.0.1
>
>
> Kafka's clients and protocol exposes unauthorized topics to the end user. This is often considered a security hole. To some, the topic name is considered sensitive information. Those that do not consider the name sensitive, still consider it more information that allows a user to try and circumvent security.  Instead, if a user does not have access to the topic, the servers should act as if the topic does not exist. 
> To solve this some of the changes could include:
>       - The broker should not return a TOPIC_AUTHORIZATION(29) error for requests (metadata, produce, fetch, etc) that include a topic that the user does not have DESCRIBE access to.
>       - A user should not receive a TopicAuthorizationException when they do not have DESCRIBE access to a topic or the cluster.
>      - The client should not maintain and expose a list of unauthorized topics in org.apache.kafka.common.Cluster. 
> Other changes may be required that are not listed here. Further analysis is needed. 



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