Description
An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. 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 users.
Remediation
References
http://www.securityfocus.com/bid/108427
https://access.redhat.com/errata/RHSA-2019:3140
https://access.redhat.com/errata/RHSA-2019:3892
https://access.redhat.com/errata/RHSA-2019:4352
https://issues.apache.org/jira/browse/ZOOKEEPER-1392
https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E
https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E
https://lists.apache.org/thread.html/5d9a1cf41a5880557bf680b7321b4ab9a4d206c601ffb15fef6f196a%40%3Ccommits.accumulo.apache.org%3E
https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E
https://lists.apache.org/thread.html/f6112882e30a31992a79e0a8c31ac179e9d0de7c708de3a9258d4391%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E
https://lists.apache.org/thread.html/r40f32125c1d97ad82404cc918171d9e0fcf78e534256674e9da1eb4b%40%3Ccommon-issues.hadoop.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/05/msg00033.html
https://seclists.org/bugtraq/2019/Jun/13
https://security.netapp.com/advisory/ntap-20190619-0001/
https://www.debian.org/security/2019/dsa-4461
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://zookeeper.apache.org/security.html#CVE-2019-0201
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