Home/CVE/A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift
CVE

CVE-2023-5408

A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift

A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.

HIGH · CVSS 7.2 EPSS 0.00559
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
▤

Affected Products & Versions

1
redhat openshift container platformall versions
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Nov 2023 · 03:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

5
msrcCVE-2023-5408
rhsaRHSA-2023:5006Important
rhsaRHSA-2023:6842Important
rhsaRHSA-2023:6130Important
rhsaRHSA-2023:7479Important
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2023-5408Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2242173Issue TrackingVendor Advisory
https://github.com/openshift/kubernetes/pull/1736Issue Tracking
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