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

What is CVE-2023-5528?

CVE-2023-5528 is a high-severity vulnerability in Fedoraproject Fedora, published on 14 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.

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.

Weakness: CWE-20

Which versions are affected by CVE-2023-5528?

9 open source packages ship an affected version, including k8s.io/kubernetes. It affects 2 products.

Products include Fedoraproject Fedora, Kubernetes Kubernetes.

How do I fix CVE-2023-5528?

Upgrade k8s.io/kubernetes to a fixed version for your release line: 1.25.16, 1.26.11, 1.27.8 or 1.28.4.

Is CVE-2023-5528 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-5528 exists.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-32005, AZL-34894, CLEANSTART-2026-EF04271, CLEANSTART-2026-JR27860, GHSA-hq6q-c2x6-hmch, GO-2023-2341.