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Posted to dev@kafka.apache.org by "Andras Beni (JIRA)" <ji...@apache.org> on 2018/11/15 08:13:00 UTC
[jira] [Created] (KAFKA-7631) NullPointerException when SCRAM is
allowed bu ScramLoginModule is not in broker's jaas.conf
Andras Beni created KAFKA-7631:
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Summary: 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
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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