jaikiran pai created KAFKA-4056:
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Summary: Kafka logs values of sensitive configs like passwords
Key: KAFKA-4056
URL: https://issues.apache.org/jira/browse/KAFKA-4056
Project: Kafka
Issue Type: Bug
Affects Versions: 0.9.0.1
Reporter: jaikiran pai
>From the mail discussion here:
>https://www.mail-archive.com/dev@kafka.apache.org/msg55012.html
{quote}
We are using 0.9.0.1 of Kafka (Java) libraries for our Kafka consumers and
producers. In one of our consumers, our consumer config had a SSL specific
property which ended up being used against a non-SSL Kafka broker port. As a
result, the logs ended up seeing messages like:
17:53:33,722 WARN [o.a.k.c.c.ConsumerConfig] - The configuration
*ssl.truststore.password = foobar* was supplied but isn't a known config.
The log message is fine and makes sense, but can Kafka please not log the
values of the properties and instead just include the config name which it
considers as unknown? That way it won't ended up logging these potentially
sensitive values. I understand that only those with access to these log files
can end up seeing these values but even then some of our internal processes
forbid logging such sensitive information to the logs. This log message will
still end up being useful if only the config name is logged without the value.
{quote}
Apparently (as noted in that thread), there's already code in the Kafka library
which masks sensitive values like passwords, but it looks like there's a bug
where it unintentionally logs these raw values.
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