Headline
GHSA-r978-9m6m-6gm6: Apache ZooKeeper vulnerable to information disclosure in persistent watchers handling
Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows an attacker to monitor child znodes by attaching a persistent watcher (addWatch command) to a parent which the attacker has already access to. ZooKeeper server doesn’t do ACL check when the persistent watcher is triggered and as a consequence, the full path of znodes that a watch event gets triggered upon is exposed to the owner of the watcher. It’s important to note that only the path is exposed by this vulnerability, not the data of znode, but since znode path can contain sensitive information like user name or login ID, this issue is potentially critical.
Users are recommended to upgrade to version 3.9.2, 3.8.4 which fixes the issue.
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2024-23944
Apache ZooKeeper vulnerable to information disclosure in persistent watchers handling
Moderate severity GitHub Reviewed Published Mar 15, 2024 to the GitHub Advisory Database • Updated Mar 15, 2024
Package
maven org.apache.zookeeper:zookeeper (Maven)
Affected versions
>= 3.8.0, <= 3.8.3
>= 3.9.0, <= 3.9.1
>= 3.6.0, <= 3.7.2
Patched versions
3.8.4
3.9.2
Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows an attacker to monitor child znodes by attaching a persistent watcher (addWatch command) to a parent which the attacker has already access to. ZooKeeper server doesn’t do ACL check when the persistent watcher is triggered and as a consequence, the full path of znodes that a watch event gets triggered upon is exposed to the owner of the watcher. It’s important to note that only the path is exposed by this vulnerability, not the data of znode, but since znode path can contain sensitive information like user name or login ID, this issue is potentially critical.
Users are recommended to upgrade to version 3.9.2, 3.8.4 which fixes the issue.
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-23944
- https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79k
- apache/zookeeper@29c7b94
- apache/zookeeper@65b91d2
- apache/zookeeper@daf7cfd
Published to the GitHub Advisory Database
Mar 15, 2024
Last updated
Mar 15, 2024
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