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Posted to jira@kafka.apache.org by "Andras Beni (JIRA)" <ji...@apache.org> on 2018/11/15 08:14:00 UTC
[jira] [Commented] (KAFKA-7631) NullPointerException when SCRAM is
allowed bu ScramLoginModule is not in broker's jaas.conf
[ https://issues.apache.org/jira/browse/KAFKA-7631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16687631#comment-16687631 ]
Andras Beni commented on KAFKA-7631:
------------------------------------
[~asasvari], [~viktorsomogyi] you might want to look at this issue.
> NullPointerException when SCRAM is allowed bu ScramLoginModule is not in broker's jaas.conf
> -------------------------------------------------------------------------------------------
>
> Key: KAFKA-7631
> URL: https://issues.apache.org/jira/browse/KAFKA-7631
> Project: Kafka
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.0.0
> Reporter: Andras Beni
> Priority: Minor
>
> When user wants to use delegation tokens and lists {{SCRAM}} in {{sasl.enabled.mechanisms}}, but does not add {{ScramLoginModule}} to broker's JAAS configuration, a null pointer exception is thrown on broker side and the connection is closed.
> Meaningful error message should be logged and sent back to the client.
> {code}
> java.lang.NullPointerException
> at org.apache.kafka.common.security.authenticator.SaslServerAuthenticator.handleSaslToken(SaslServerAuthenticator.java:376)
> at org.apache.kafka.common.security.authenticator.SaslServerAuthenticator.authenticate(SaslServerAuthenticator.java:262)
> at org.apache.kafka.common.network.KafkaChannel.prepare(KafkaChannel.java:127)
> at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:489)
> at org.apache.kafka.common.network.Selector.poll(Selector.java:427)
> at kafka.network.Processor.poll(SocketServer.scala:679)
> at kafka.network.Processor.run(SocketServer.scala:584)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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