cyberstrikeus CIS Red Hat OpenShift Container Platform Benchmark v1.9.0 - Control 5.1.4
Profile Applicability
- Level: 1
Description
The ability to create pods in a namespace can provide a number of opportunities for privilege escalation, such as assigning privileged service accounts to these pods or mounting hostPaths with access to sensitive data (unless Pod Security Policies are implemented to restrict this access).
As such, access to create new pods should be restricted to the smallest possible group of users.
Rationale
The ability to create pods in a cluster opens up possibilities for privilege escalation and should be restricted, where possible.
Impact
Care should be taken not to remove access to pods to system components which require this for their operation.
Audit Procedure
Review the users who have create access to pod objects in the Kubernetes API with the following command:
oc adm policy who-can create pod
Remediation
Where possible, remove create access to pod objects in the cluster.
Default Value
By default in a kubeadm cluster the following list of principals have create privileges on pod objects.
References
None specified.
CIS Controls
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 2.7 Allowlist Authorized Scripts | x | ||
| v7 | 5.2 Maintain Secure Images | x | x |
MITRE ATT&CK Mappings
| Techniques / Sub-techniques | Tactics | Mitigations |
|---|---|---|
| T1078, T1078.002 | TA0001, TA0004 | M1026 |
Profile
Level 1 (Manual)