Vulnerability · Published Mar 15, 2024 · Assigned by apache
CVE-2024-23944Apache ZooKeeper: Information disclosure in persistent watcher handling
Medium 5.3
In plain English
A medium-severity missing authorization in Apache ZooKeeper from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | zookeeper | 3.8.0-11+deb12u2 | DEBIAN-CVE-2024-23944 |
| Debian:13 | zookeeper | 3.9.2-1 | DEBIAN-CVE-2024-23944 |
| Debian:14 | zookeeper | 3.9.2-1 | DEBIAN-CVE-2024-23944 |
| Maven | org.apache.zookeeper:zookeeper | 3.9.2 | GHSA-r978-9m6m-6gm6 |
| Maven | org.apache.zookeeper:zookeeper | no fix listed | GHSA-r978-9m6m-6gm6 |
| Maven | org.apache.zookeeper:zookeeper | 3.8.4 | GHSA-r978-9m6m-6gm6 |
| Ubuntu:24.04:LTS | zookeeper | no fix listed | UBUNTU-CVE-2024-23944 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache ZooKeeper | 3.9.0 – through 3.9.13.8.0 – through 3.8.33.6.0 – through 3.7.2 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
References
- https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79k vendor-advisory
- http://www.openwall.com/lists/oss-security/2024/03/14/2 x_transferred