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.
Vendor | Product | Version | CPE |
---|---|---|---|
org.apache.zookeeper | zookeeper | * | cpe:2.3:a:org.apache.zookeeper:zookeeper:*:*:*:*:*:*:*:* |
www.openwall.com/lists/oss-security/2024/03/14/2
github.com/advisories/GHSA-r978-9m6m-6gm6
github.com/apache/zookeeper/commit/29c7b9462681f47c2ac12e609341cf9f52abac5c
github.com/apache/zookeeper/commit/65b91d2d9a56157285c2a86b106e67c26520b01d
github.com/apache/zookeeper/commit/daf7cfd04005cff1a4f7cab5ab13d41db88d0cd8
lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79k
nvd.nist.gov/vuln/detail/CVE-2024-23944