Improper Privilege Management in Kubernetes Operations (kOps) - CVE-2023-1943
Published: June 23, 2023
Vulnerability identifier: #VU77653
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-1943
CWE-ID: CWE-269
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges within the cluster.
The vulnerability exists due to improper privilege management in kOps with the GCP Provider running in Gossip Mode. A remote user can abuse the Node service account credentials, used by a container running in the cluster, to retrieve sensitive information from the state storage bucket and escalate to cluster-admin permissions.
Affected software
Kubernetes Operations (kOps)
How to mitigate CVE-2023-1943
Install updates from vendor's website.
Kubernetes Operations (kOps) - addressed in versions 1.25.4, 1.26.2