Manage CSIDrivers (potential node compromise)

Overview

Field	Value
ID	1055
Name	Manage CSIDrivers (potential node compromise)
Risk Category	Elevation of Privilege
Risk Level	Critical
Role Type	ClusterRole
API Groups	storage.k8s.io
Resources	csidrivers
Verbs	create, update, patch, delete
Tags	NodeAccess PrivilegeEscalation StorageManipulation Tampering

Description

Allows creating, updating, or deleting CSIDrivers. CSIDrivers define how container orchestrators interact with storage systems. A malicious CSIDriver could potentially compromise nodes by running privileged operations or exfiltrating data, leading to privilege escalation and node access.

Abuse Scenarios

Create a new CSIDriver that could be used for malicious purposes.

kubectl create -f - <<EOF
apiVersion: storage.k8s.io/v1
kind: CSIDriver
metadata:
  name: malicious.csi.example.com
spec:
  attachRequired: false
  podInfoOnMount: false
  volumeLifecycleModes:
    - Persistent
EOF
# Example: kubectl create -f - <<EOF ... EOF

Delete an existing CSIDriver, disrupting storage operations.

kubectl delete csidriver <csidriver-name>
# Example: kubectl delete csidriver ebs.csi.aws.com