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Fencer Vulns
critical 9.0

CVE-2018-1085 json

openshift-ansible before versions 3.9.23, 3.7.46 deploys a misconfigured etcd file that causes the SSL client certificate authentication to…

published 2018-06-15 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-11735

cvss
9.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

openshift-ansible before versions 3.9.23, 3.7.46 deploys a misconfigured etcd file that causes the SSL client certificate authentication to be disabled. Quotations around the values of ETCD_CLIENT_CERT_AUTH and ETCD_PEER_CLIENT_CERT_AUTH in etcd.conf result in etcd being configured to allow remote users to connect without any authentication if they can access the etcd server bound to the network on the master nodes. An attacker could use this flaw to read and modify all the data about the Openshift cluster in the etcd datastore, potentially adding another compute node, or bringing down the entire cluster.

Patch / fix

  • redhat openshift_container_platform 3.9.31
  • mysql-apb-role openshift 3.9 1.1.11-1.el7
  • atomic-openshift openshift 3.9 3.9.31-1.git.0.ef9737b.el7
  • openshift-ansible openshift 3.9 3.9.31-1.git.34.154617d.el7
  • atomic-openshift-pod openshift 3.9 3.9.31-1.git.0.ef9737b.el7
  • atomic-openshift-node openshift 3.9 3.9.31-1.git.0.ef9737b.el7
  • atomic-openshift-tests openshift 3.9 3.9.31-1.git.0.ef9737b.el7
  • atomic-openshift-utils openshift 3.9 3.9.31-1.git.34.154617d.el7
  • atomic-openshift-master openshift 3.9 3.9.31-1.git.0.ef9737b.el7

red hat advisories RHSA-2018:2013

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-2018-1085 updated cvss 9.0

openshift-ansible: Incorrectly quoted values in etcd.conf causes disabling of SSL client certificate authentication

  • Red Hat OpenShift Container Platform 3.9 mysql-apb-role 1.1.11-1.el7, atomic-openshift 3.9.31-1.git.0.ef9737b.el7, openshift-ansible 3.9.31-1.git.34.154617d.el7, atomic-openshift-pod 3.9.31-1.git.0.ef9737b.el7, atomic-openshift-node 3.9.31-1.git.0.ef9737b.el7, atomic-openshift-tests 3.9.31-1.git.0.ef9737b.el7, +19 more
    fixed: vendor fix RHSA-2018:2013

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

2.28% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 9.0 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • [UNKNOWN] openshift-ansible

Classification

Weakness
  • CWE-592 DEPRECATED: Authentication Bypass Issues
  • CWE-287 Improper Authentication

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.