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CVE-2024-23944

Apache ZooKeeper: Information disclosure in persistent watcher handling

Published: Mar 15, 2024Updated: Jul 3, 2025 Sources: CVE List NVD GHSA BDUCWE-862
5.3MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 84.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-862

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache ZooKeeperOn-premWeb App
Databases / cache-message-queue
ZooKeeperDatabase
Databases / cache-message-queue
apache
oss-project·USaka apache http server, apache httpd
zookeeperOn-premDatabase
Databases / cache-message-queue
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
Maven
package-ecosystem
org.apache.zookeeper:zookeeper
OSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79k
lists.apache.org
http://www.openwall.com/lists/oss-security/2024/03/14/2
openwall.com
http://www.openwall.com/lists/oss-security/2024/03/14/2
openwall.com
and 7 more references View all →

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