Vulnerability Information
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Vulnerability Title
Clusternet has potential risk which can be leveraged to make a cluster-level privilege escalation
Vulnerability 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.
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
Vulnerability Type
特权管理不恰当
Vulnerability Title
Clusternet 安全漏洞
Vulnerability Description
Clusternet是Clusternet的一个开源的Kubernetes多集群管理工具，可以帮助用户在多个Kubernetes集群之间管理和协调工作负载。 Clusternet 0.15.2之前版本存在安全漏洞，该漏洞源于允许攻击者访问clusternet 的工作节点并进行集群特权升级。
CVSS Information
N/A
Vulnerability Type
N/A