CVE-2024-23944
mediumpriority · track · 0OT risk · elevatedEPSS 0.002 · 16 %ileDEEUNLRUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedRed Hat AMQ Streams 2.5.2redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2024:6536
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (49)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- NCSC-2024-0411Kwetsbaarheden verholpen in Oracle Database productenNL2024-10-17csaf · ncsc_nlNL
Oracle heeft kwetsbaarheden verholpen in diverse Database producten en subsystemen, zoals de Core database, Application Express, Autonomous Health Framework, Essbase, GoldenGate, SQL Developer en Secure Backup.
- RHSA-2024:6536Red Hat Security Advisory: Red Hat AMQ Streams 2.5.2 release and security update2024-09-10csaf · redhat_csafUS
Red Hat AMQ Streams 2.5.2 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- WID-SEC-W-2024-1641Oracle Construction and Engineering: Mehrere SchwachstellenDeutsch2024-07-16csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Construction and Engineering ausnutzen, um die Vertraulichkeit und Integrität zu gefährden.
- GHSA-r978-9m6m-6gm6Apache ZooKeeper vulnerable to information disclosure in persistent watchers handling2024-03-15ghsa · osvUS
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.
- BIT-zookeeper-2024-23944Apache ZooKeeper: Information disclosure in persistent watcher handling2024-03-31vendor · osvUS
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.
also known as (6)
Other names and identifiers for this entity.
sources
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references (9)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2024/03/14/2cnnvd
- https://cxsecurity.com/cveshow/CVE-2024-23944/cnnvd
- https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79kcnnvd
- https://vigilance.fr/vulnerability/Apache-ZooKeeper-information-disclosure-via-the-addwatch-command-43793cnnvd
- https://www.oracle.com/security-alerts/cpujul2024.htmlcnnvd
- https://www.oracle.com/security-alerts/cpuoct2024.htmlcnnvd
- https://lists.apache.org/thread/96s5nqssj03rznz9hv58txdb2k1lr79kenisa_euvd
- http://www.openwall.com/lists/oss-security/2024/03/14/2Mailing Listnvd
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