CVE-2019-0201: Information disclosure

May 23, 2019 (updated November 15, 2019)

ZooKeeper’s getACL() command does not 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 users.

References

www.securityfocus.com/bid/108427
issues.apache.org/jira/browse/ZOOKEEPER-1392
nvd.nist.gov/vuln/detail/CVE-2019-0201
www.openwall.com/lists/oss-security/2019/05/20/1
zookeeper.apache.org/security.html

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