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From Andor Molnar <an...@apache.org>
Subject [CVE-2019-0201] Information disclosure vulnerability in Apache ZooKeeper
Date Mon, 20 May 2019 17:14:40 GMT
CVE-2019-0201: Information disclosure vulnerability in Apache ZooKeeper
Severity: Critical
Vendor: The Apache Software Foundation
Versions Affected: ZooKeeper prior to 3.4.14, ZooKeeper 3.5.0-alpha through 3.5.4-beta. The
unsupported ZooKeeper 1.x through 3.3.x versions may be also affected.
Description: ZooKeeper’s getACL() command doesn’t check any permission when retrieves
the ACLs of the requested node and returns all information contained in the ACL Id field as
plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value
that is used for user authentication. As a consequence, if Digest Authentication is in use,
the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged
Mitigation: Use an authentication method other than Digest (e.g. Kerberos) or upgrade to 3.4.14
or later (3.5.5 or later if on the 3.5 branch).
Credit: This issue was identified by Harrison Neal <harrison@patchadvisor.com> PatchAdvisor,
References: https://issues.apache.org/jira/browse/ZOOKEEPER-1392

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