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Fencer Vulns
medium 5.9

CVE-2019-0201 json

Access control bypass in Apache ZooKeeper

published 2019-05-23 7 y ago modified 2026-06-17 4 mo ago also GHSA-2hw2-62cp-p9p7 , EUVD-2019-0443

cvss
5.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.7%
EPSS 9.7% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() command doesn’t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged users.

Patch / fix

  • maven org.apache.zookeeper:zookeeper 3.4.14, 3.5.5
  • oracle goldengate_stream_analytics 19.1.0.0.1
  • oracle timesten_in-memory_database 18.1.3.1.0
  • zookeeper Debian 14, Debian 13, Debian 12 3.4.13-2

debian advisories DEBIAN-CVE-2019-0201

  • zookeeper Ubuntu Pro 14.04 LTS 3.4.5+dfsg-1ubuntu0.1~esm3
  • zookeeper Ubuntu Pro 16.04 LTS 3.4.8-1ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2019-0201

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kibana OpenStack Cloud 7 4.6.3-5.1
  • ansible OpenStack Cloud 7 2.2.3.0-12.2
  • grafana OpenStack Cloud 7 4.6.5-1.14.1
  • memcached OpenStack Cloud 7 1.5.17-3.6.1
  • python-py OpenStack Cloud 7 1.8.1-11.12.1
  • zookeeper OpenStack Cloud 7 3.4.10-6.1
  • crowbar-ha OpenStack Cloud 7 4.0+git.1585316203.d6ad2c8-4.52.4
  • keepalived OpenStack Cloud 7 2.0.19-1.8.1

suse advisories SUSE-RU-2020:2072-1SUSE-SU-2020:1190-1SUSE-SU-2020:1066-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-0201 updated cvss 7.5

zookeeper: Information disclosure in Apache ZooKeeper

  • Red Hat BPM Suite 6 zookeeper Red Hat JBoss BRMS 6 zookeeper Red Hat JBoss Fuse Service Works 6 zookeeper
    affected: workaround, no fix planned “Use an authentication method other than Digest (e.g. Kerberos) or upgrade to zookeeper 3.4.14 or later (3.5.5 or later if on the 3.5 branch). [https://zookeeper.apache.org/security.html#CVE-2019-0201]”
  • Red Hat Fuse 6.3
    fixed: vendor fix “Use an authentication method other than Digest (e.g. Kerberos) or upgrade to zookeeper 3.4.14 or later (3.5.5 or later if on the 3.5 branch). [https://zookeeper.apache.org/security.html#CVE-2019-0201]” RHSA-2019:4352
  • Red Hat Fuse 7.5.0
    fixed: vendor fix “Use an authentication method other than Digest (e.g. Kerberos) or upgrade to zookeeper 3.4.14 or later (3.5.5 or later if on the 3.5 branch). [https://zookeeper.apache.org/security.html#CVE-2019-0201]” RHSA-2019:3892
  • Red Hat JBoss Data Virtualization 6.4.8
    fixed: vendor fix “Use an authentication method other than Digest (e.g. Kerberos) or upgrade to zookeeper 3.4.14 or later (3.5.5 or later if on the 3.5 branch). [https://zookeeper.apache.org/security.html#CVE-2019-0201]” RHSA-2019:3140
  • Red Hat OpenShift Application Runtimes zookeeper Red Hat streams for Apache Kafka zookeeper
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

9.71% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
GitHub 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.zookeeper:zookeeper
>=1.0.0, <3.4.14
>=3.5.0, <3.5.5
3.4.14
3.5.5

Affected products

  • Apache Software Foundation Apache ZooKeeper

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.