| name | cis-ocp-vm-v100-1-6 |
| description | Restrict patching operations in the annotations for Hyperconverged (Manual) |
| category | cis-openshift-virtualization |
| version | 1.0 |
| author | cyberstrike-official |
| tags | ["cis","openshift","kubernetes","openshift-virtualization","kubevirt","vm","platform-configuration","hco","annotations","jsonpatch"] |
| cis_id | 1.6 |
| cis_benchmark | CIS Redhat OpenShift Virtual Machine Extension Benchmark v1.0.0 |
| tech_stack | ["kubernetes","openshift","openshift-virtualization","kubevirt"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
CIS 1.6 — Restrict patching operations in the annotations for Hyperconverged
Profile Applicability
Description
The kubevirt-hyperconverged (HCO) object provides a mechanism to customize OpenShift Virtualization components through the control of patching operations. Although this approach itself does not inherently introduce security risks, enabling experimental features may have unintended consequences and might not be officially supported. It is essential to weigh the benefits of using these options against any potential security implications before proceeding.
Rationale
Cloud administrators should not patch OpenShift Virtualization objects, but rather configure the OpenShift Virtualization options available in HCO.
Impact
Restrictions to patching operations may prevent the use of experimental features not yet supported or considered insecure.
Audit Procedure
Ensure there are no patching operations for the Openshift Virtualization component:
$ oc get hyperconverged kubevirt-hyperconverged -n openshift-cnv -o jsonpath='{.metadata.annotations}'| jq '.|has("kubevirt.kubevirt.io/jsonpatch")'
$ oc get hyperconverged kubevirt-hyperconverged -n openshift-cnv -o jsonpath='{.metadata.annotations}'| jq '.|has("containerizeddataimporter.kubevirt.io/jsonpatch")'
$ oc get hyperconverged kubevirt-hyperconverged -n openshift-cnv -o jsonpath='{.metadata.annotations}'| jq '.|has("networkaddonsconfigs.kubevirt.io/jsonpatch")'
$ oc get hyperconverged kubevirt-hyperconverged -n openshift-cnv -o jsonpath='{.metadata.annotations}'| jq '.|has("ssp.kubevirt.io/jsonpatch")'
All the commands should return an empty string.
Remediation
The annotations should be removed from the Hyperconverged. For example, by directly editing the object with oc edit hyperconverged kubevirt-hyperconverged -n openshift-cnv or by removing the annotation with the annotate command. Example:
$ oc annotate --overwrite -n openshift-cnv hco kubevirt-hyperconverged 'containerizeddataimporter.kubevirt.io/jsonpatch-'
Default Value
None of the annotations should be set and the result of the commands should always be false.
References
