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Fencer Intel
medium 5.0

CVE-2019-3876 json

Withdrawn Advisory: OpenShift OAuth Server XSS Vulnerability

published 7y ago modified last mo. also GHSA-jgwg-35hf-xqrr , EUVD-2022-4366

cvss
5.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

A flaw was found in the /oauth/token/request custom endpoint of the OpenShift OAuth server allowing for XSS generation of CLI tokens due to missing X-Frame-Options and CSRF protections. If not otherwise prevented, a separate XSS vulnerability via JavaScript could further allow for the extraction of these tokens.

Patch / fix

  • atomic-openshift openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7
  • jenkins-2-plugins openshift 3.11 3.11.1560870549-1.el7
  • atomic-openshift-pod openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7
  • atomic-openshift-node openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7
  • atomic-openshift-tests openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7
  • atomic-openshift-master openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7
  • atomic-openshift-clients openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7
  • atomic-openshift-sdn-ovs openshift 3.11 3.11.129-1.git.0.bd4f2d5.el7

red hat advisories RHSA-2019:1851

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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-2019-3876 updated cvss 5.0

web-console: XSS in OAuth server /oauth/token/request endpoint

  • Red Hat OpenShift Container Platform 3.4 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +6 more Red Hat OpenShift Container Platform 3.5 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +6 more Red Hat OpenShift Container Platform 3.6 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +9 more Red Hat OpenShift Container Platform 3.7 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +10 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 3.9 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +8 more Red Hat OpenShift Container Platform 3.10 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +7 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins 3.11.1560870549-1.el7, atomic-openshift 3.11.129-1.git.0.bd4f2d5.el7, atomic-openshift-pod 3.11.129-1.git.0.bd4f2d5.el7, atomic-openshift-node 3.11.129-1.git.0.bd4f2d5.el7, atomic-openshift-tests 3.11.129-1.git.0.bd4f2d5.el7, atomic-openshift-master 3.11.129-1.git.0.bd4f2d5.el7, +8 more
    fixed: vendor fix RHSA-2019:1851
  • Red Hat OpenShift Container Platform 4 openshift, openshift-clients, openshift-kubelet, openshift-hyperkube, openshift-kube-apiserver, openshift-kube-scheduler, +2 more
    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

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.0 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Red Hat web-console

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

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.