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Fencer Intel
medium 6.5

CVE-2018-1000408 json

Improper Authorization in Jenkins

published 7y ago modified 4mo ago also GHSA-4h47-h3cr-23wh , EUVD-2022-2382

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

A denial of service vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java that allows attackers without Overall/Read permission to access a specific URL on instances using the built-in Jenkins user database security realm that results in the creation of an ephemeral user record in memory.

Patch / fix

  • maven org.jenkins-ci.main:jenkins-core 2.138.2, 2.146
  • cri-o openshift 3.11 1.11.10-1.rhaos3.11.git42c86f0.el7
  • kibana openshift 3.11 5.6.13-1.el7
  • jenkins openshift 3.11 2.138.2.1542054911-1.el7
  • prometheus openshift 3.11 3.11.51-1.git.5023.0ad933c.el7
  • atomic-openshift openshift 3.11 3.11.51-1.git.0.1560686.el7
  • jenkins-2-plugins openshift 3.11 3.11.1542061886-1.el7
  • openshift-ansible openshift 3.11 3.11.51-2.git.0.51c90a3.el7
  • atomic-openshift-pod openshift 3.11 3.11.51-1.git.0.1560686.el7

red hat advisories RHBA-2018:3743

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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-2018-1000408 updated cvss 6.5

jenkins: Ephemeral user record creation

  • Red Hat OpenShift Container Platform 3.4 jenkins Red Hat OpenShift Container Platform 3.5 jenkins Red Hat OpenShift Container Platform 3.6 jenkins Red Hat OpenShift Container Platform 3.7 jenkins Red Hat OpenShift Container Platform 3.9 jenkins Red Hat OpenShift Container Platform 3.10 jenkins
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 3.11 kibana 5.6.13-1.el7, jenkins 2.138.2.1542054911-1.el7, jenkins-2-plugins 3.11.1542061886-1.el7, cri-o 1.11.10-1.rhaos3.11.git42c86f0.el7, prometheus 3.11.51-1.git.5023.0ad933c.el7, atomic-openshift 3.11.51-1.git.0.1560686.el7, +35 more
    fixed: vendor fix RHBA-2018:3743
  • Red Hat OpenShift Container Platform 4 jenkins
    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

1.47% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P
GitHub 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected packages

ecosystem package affected fixed in
maven org.jenkins-ci.main:jenkins-core
<2.138.2
>=2.140, <2.146
2.138.2
2.146

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.