SB2023112062 - Privilege escalation in Kubernetes
Published: November 20, 2023
Security Bulletin ID
SB2023112062
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-5528)
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to improper access restrictions. A remote user with ability to create pods and persistent volumes on Windows nodes can obtain admin privileges on those nodes.
The vulnerability affects Kubernetes clusters only, if they are using an in-tree storage plugin for Windows nodes.
Remediation
Install update from vendor's website.