CVE-2023-30622
Severity CVSS v4.0:
Pending analysis
Type:
CWE-269
Improper Privilege Management
Publication date:
24/04/2023
Last modified:
04/05/2023
Description
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.
Impact
Base Score 3.x
8.80
Severity 3.x
HIGH
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:clusternet:clusternet:*:*:*:*:*:*:*:* | 0.15.1 (including) |
To consult the complete list of CPE names with products and versions, see this page