CVE-2023-44981

Red Hat Security Advisory 2024-6536-03 - Red Hat AMQ Streams 2.5.2 is now available from the Red Hat Customer Portal. Issues addressed include bypass, denial of service, information leakage, and memory leak vulnerabilities.

Red Hat Security Advisory 2024-0903-03 - Red Hat AMQ Broker 7.10.6 is now available from the Red Hat Customer Portal. Issues addressed include a bypass vulnerability.

Red Hat Security Advisory 2024-0705-03 - Red Hat AMQ Broker 7.11.6 is now available from the Red Hat Customer Portal. Issues addressed include a bypass vulnerability.

Ubuntu Security Notice 6559-1 - 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. 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.

Red Hat Security Advisory 2023-7678-03 - Red Hat AMQ Streams 2.6.0 is now available from the Red Hat Customer Portal. Issues addressed include XML injection, bypass, and open redirection vulnerabilities.

Debian Linux Security Advisory 5544-1 - Damien Diederen discovered that SASL quorum peer authentication within Zookeeper, a service for maintaining configuration information, was insufficiently enforced in some configurations.

Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum.auth.enableSasl=true), the authorization is done by verifying that the instance part in SASL authentication ID is listed in zoo.cfg server list. The instance part in SASL auth ID is optional and if it's missing, like '[email protected]', the authorization check will be skipped. As a result an arbitrary endpoint could join the cluster and begin propagating counterfeit changes to the leader, essentially giving it complete read-write access to the data tree. Quorum Peer authentication is not enabled by default. Users are recommended to upgrade to version 3.9.1, 3.8.3, 3.7.2, which fixes the issue. Alternately ensure the ensemble election/quorum communication is protected by a firewall as this will mitigate the issue. See the documentation for more details on correct cluster administration.