CVE-2024-23944

Apache ZooKeeper: Information disclosure in persistent watcher handling

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

Divulgación de información en el manejo de observadores persistentes en Apache ZooKeeper debido a la falta de verificación de ACL. Permite a un atacante monitorear znodes secundarios adjuntando un observador persistente (comando addWatch) a un padre al que el atacante ya tiene acceso. El servidor ZooKeeper no realiza una verificación de ACL cuando se activa el observador persistente y, como consecuencia, la ruta completa de los znodes sobre los que se activa un evento de vigilancia queda expuesta al propietario del observador. Es importante tener en cuenta que esta vulnerabilidad solo expone la ruta, no los datos de znode, pero dado que la ruta de znode puede contener información confidencial como el nombre de usuario o el ID de inicio de sesión, este problema es potencialmente crítico. Se recomienda a los usuarios actualizar a la versión 3.9.2, 3.8.4, que soluciona el problema.

*Credits: 周吉安(寒泉) <zhoujian.zja@alibaba-inc.com>

CVSS Scores

CISAv3.1 5.3

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-01-24 CVE Reserved
2024-03-15 CVE Published
2024-03-16 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (2)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/03/14/2

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79k	2024-05-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Software Foundation Search vendor "Apache Software Foundation"		Apache ZooKeeper Search vendor "Apache Software Foundation" for product "Apache ZooKeeper"				>= 3.9.0 <= 3.9.1 Search vendor "Apache Software Foundation" for product "Apache ZooKeeper" and version " >= 3.9.0 <= 3.9.1"		en		Affected
Apache Software Foundation Search vendor "Apache Software Foundation"		Apache ZooKeeper Search vendor "Apache Software Foundation" for product "Apache ZooKeeper"				>= 3.8.0 <= 3.8.3 Search vendor "Apache Software Foundation" for product "Apache ZooKeeper" and version " >= 3.8.0 <= 3.8.3"		en		Affected
Apache Software Foundation Search vendor "Apache Software Foundation"		Apache ZooKeeper Search vendor "Apache Software Foundation" for product "Apache ZooKeeper"				>= 3.6.0 <= 3.7.2 Search vendor "Apache Software Foundation" for product "Apache ZooKeeper" and version " >= 3.6.0 <= 3.7.2"		en		Affected