CVE-2023-30622Medium· 6.7▾ SunlitA potential risk in clusternet which can be leveraged to make a cluster-level privilege escalation
▾ Sunlit zone — Low / medium · no exploitation signal
impact 36.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.2%
A potential risk in clusternet which can be leveraged to make 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, he/she can leverage the service account to do malicious actions to critical system resources. For example, he/she can leverage the service account to get ALL secrets in the entire cluster, resulting in cluster-level privilege escalation.
github.com/clusternet/clusternet < 0.15.2Upgrade to a patched release:
github.com/clusternet/clusternet 0.15.2