Improper authentication in [UNKNOWN] openshift-ansible
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-287.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| [UNKNOWN] | openshift-ansible | openshift-ansible 3.9.23-1; openshift-ansible 3.7.46-1 | — | No fix listed | CNA |
- openshift-ansible Vendor[UNKNOWN] Affected openshift-ansible 3.9.23-1; openshift-ansible 3.7.46-1 Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2018:2013 Released 2018-06-27 · Red Hat rating ImportantOpenShift Container Platform 3.9 security, bug fix, and enhancement update
- Red Hat OpenShift Container Platform 3.9 atomic-openshift-3.9.31-1.git.0.ef9737b.el7, atomic-openshift-clients-3.9.31-1.git.0.ef9737b.el7, atomic-openshift-clients-redistributable-3.9.31-1.git.0.ef9737b.el7 +23
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 3.9 | Fixed | RHSA-2018:2013 |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1085
- 2026-10-03 Alias added: GHSA-42gw-292w-c96g
References
More Red Hat Openshift Container Platform vulnerabilities
- TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
- TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-34021 Linux kernel skb coalescing drops shared-frag marker KEVCVSS 3.1HIGH 7.8
- TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2018-1085 · CVE Program
- CVE-2018-1085 · NVD
- FIRST EPSS
- GHSA-42gw-292w-c96g · GitHub Advisory Database · CC BY 4.0
- CVE-2018-1085 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences