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https://issues.apache.org/jira/browse/KAFKA-8774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16906275#comment-16906275
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ASF GitHub Bot commented on KAFKA-8774:
---------------------------------------
rhauch commented on pull request #7197: KAFKA-8774: Regex can be found anywhere
in config value
URL: https://github.com/apache/kafka/pull/7197
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> Connect REST API exposes plaintext secrets in tasks endpoint if config value
> contains additional characters
> -----------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-8774
> URL: https://issues.apache.org/jira/browse/KAFKA-8774
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 2.3.0
> Reporter: Oleksandr Diachenko
> Assignee: Oleksandr Diachenko
> Priority: Critical
>
> I have configured a Connector to use externalized secrets, and the following
> endpoint returns secrets in the externalized form:
> {code:java}
> curl localhost:8083/connectors/foobar|jq
> {code}
> {code:java}
> {
> "name": "foobar",
> "config": {
> "connector.class": "io.confluent.connect.s3.S3SinkConnector",
> ...
> "consumer.override.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"${file:/some/secret/path/secrets.properties:kafka.api.key}\"
> password=\"${file:/some/secret/path/secrets.properties:kafka.api.secret}\";",
> "admin.override.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"${file:/some/secret/path/secrets.properties:kafka.api.key}\"
> password=\"${file:/some/secret/path/secrets.properties:kafka.api.secret}\";",
> "consumer.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"${file:/some/secret/path/secrets.properties:kafka.api.key}\"
> password=\"${file:/some/secret/path/secrets.properties:kafka.api.secret}\";",
> "producer.override.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"${file:/some/secret/path/secrets.properties:kafka.api.key}\"
> password=\"${file:/some/secret/path/secrets.properties:kafka.api.secret}\";",
> "producer.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"${file:/some/secret/path/secrets.properties:kafka.api.key}\"
> password=\"${file:/some/secret/path/secrets.properties:kafka.api.secret}\";",
> ...
> },
> "tasks": [
> { "connector": "foobar", "task": 0 }
> ],
> "type": "sink"
> }{code}
> But another endpoint returns secrets in plain text:
> {code:java}
> curl localhost:8083/connectors/foobar/tasks|jq
> {code}
> {code:java}
> [
> {
> "id": {
> "connector": "lcc-kgkpm",
> "task": 0
> },
> "config": {
> "connector.class": "io.confluent.connect.s3.S3SinkConnector",
> ...
> "errors.log.include.messages": "true",
> "flush.size": "1000",
> "consumer.override.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"OOPS\" password=\"SURPRISE\";",
> "admin.override.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"OOPS\" password=\"SURPRISE\";",
> "consumer.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"OOPS\" password=\"SURPRISE\";",
> "producer.override.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"OOPS\" password=\"SURPRISE\";",
> "producer.sasl.jaas.config":
> "org.apache.kafka.common.security.plain.PlainLoginModule required
> username=\"OOPS\" password=\"SURPRISE\";",
> ...
> }
> }
> ]
> {code}
>
> EDIT: This bug only shows up if the secrets are a substring in the config
> value. If they form the entirety of the config value, then the secrets are
> hidden at the /tasks endpoints.
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