CVE-2019-0201

Affected: Apache Software Foundation Apache ZooKeeper

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.

USN-6559-1 — zookeeper vulnerabilities

Affected: Ubuntu:Pro:14.04:LTS: zookeeper, Ubuntu:Pro:16.04:LTS: zookeeper, Ubuntu:Pro:18.04:LTS: zookeeper, Ubuntu:20.04:LTS: zookeeper, Ubuntu:22.04:LTS: zookeeper

It was discovered that ZooKeeper incorrectly handled authorization for the getACL() command. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2019-0201)

Damien Diederen discovered that ZooKeeper incorrectly handled authorization if SASL Quorum Peer authentication is enabled. An attacker could possibly use this issue to bypass ZooKeeper's authorization system. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 23.04 and Ubuntu 23.10. (CVE-2023-44981)

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CVE-2019-0201

USN-6559-1 — zookeeper vulnerabilities