Clusternet is a general-purpose system for controlling Kubernetes clusters across different environments. An issue in clusternet prior to version 0.15.2 can be leveraged to lead to a cluster-level privilege escalation. The clusternet has a deployment called `cluster-hub` inside the `clusternet-system` Kubernetes namespace, which runs on worker nodes randomly. The deployment has a service account called `clusternet-hub`, which has a cluster role called `clusternet:hub` via cluster role binding. The `clusternet:hub` cluster role has `"*" verbs of "*.*"` resources. Thus, if a malicious user can access the worker node which runs the clusternet, they can leverage the service account to do malicious actions to critical system resources. For example, the malicious user can leverage the service account to get ALL secrets in the entire cluster, resulting in cluster-level privilege escalation. Version 0.15.2 contains a fix for this issue.
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-04-24T15:34:05.430Z

Updated: 2023-04-24T15:34:05.430Z

Reserved: 2023-04-13T13:25:18.832Z


Link: CVE-2023-30622

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2023-04-24T16:15:07.917

Modified: 2023-05-04T12:53:56.153


Link: CVE-2023-30622

JSON object: View

cve-icon Redhat Information

No data.

CWE