Stephane Maarek created KAFKA-4864:
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Summary: Kafka Secure Migrator tool doesn't secure all the nodes
Key: KAFKA-4864
URL: https://issues.apache.org/jira/browse/KAFKA-4864
Project: Kafka
Issue Type: Bug
Affects Versions: 0.10.2.0, 0.10.1.1, 0.10.1.0
Reporter: Stephane Maarek
It seems that the secure nodes as referred by ZkUtils.scala are the following:
https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/utils/ZkUtils.scala#L201
A couple things:
- the list is highly outdated, and for example the most important nodes such as
kafka-acls don't get secured. That's a huge security risk. Would it be better
to just secure all the nodes from the given root?
- the root of some nodes aren't secured. Ex: /brokers (but many others).
The result is the following after running the tool:
zookeeper-security-migration --zookeeper.acl secure --zookeeper.connect
zoo1:2181/kafka-test
[zk: localhost:2181(CONNECTED) 9] getAcl /kafka-test/brokers
'world,'anyone
: cdrwa
[zk: localhost:2181(CONNECTED) 11] getAcl /kafka-test/brokers/ids
'world,'anyone
: r
'sasl,'[email protected]
: cdrwa
[zk: localhost:2181(CONNECTED) 16] getAcl /kafka-test/kafka-acl
'world,'anyone
: cdrwa
That seems pretty bad to be honest... A fast enough ZkClient could delete some
root nodes, and create the nodes they like before the Acls get set.
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