Rancher RKE2 runtime must maintain separate execution domains for each container by assigning each container a separate address space to prevent unauthorized and unintended information transfer via shared system resources.
An XCCDF Rule
Description
<VulnDiscussion>Separating user functionality from management functionality is a requirement for all the components within the Kubernetes Control Plane. Without the separation, users may have access to management functions that can degrade the Kubernetes architecture and the services being offered, and can offer a method to bypass testing and validation of functions before introduced into a production environment. Satisfies: SRG-APP-000243-CTR-000600, SRG-APP-000431-CTR-001065, SRG-APP-000211-CTR-000530, SRG-APP-000243-CTR-000595</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-254570r942452_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
System namespaces are reserved and isolated.
A resource cannot move to a new namespace; the resource must be deleted and recreated in the new namespace.
kubectl delete <resource_type> <resource_name>
kubectl create -f <resource.yaml> --namespace=<user_created_namespace>