Log in Start free

Vulnerability · Published Nov 14, 2023 · Assigned by kubernetes

CVE-2023-5528Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation

High 7.2

In plain English

A high-severity improper input validation in kubelet from Kubernetes. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 4.1% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)4.1%top 9.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gok8s.io/kubernetes1.28.4GHSA-hq6q-c2x6-hmch
Gok8s.io/kubernetes1.27.8GHSA-hq6q-c2x6-hmch
Gok8s.io/kubernetes1.26.11GHSA-hq6q-c2x6-hmch
Gok8s.io/kubernetes1.25.16GHSA-hq6q-c2x6-hmch
Gok8s.io/kubernetes1.25.16, 1.26.11, 1.27.8, 1.28.4GO-2023-2341

Affected products (as reported)

VendorProductVersions
Kubernetes kubelet v1.28.0 – through v1.28.3v1.27.0 – through v1.27.7v1.26.0 – through v1.26.100 – through v1.25.15

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References