Rancher Government Solutions RKE2 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Rancher RKE2 runtime must enforce ports, protocols, and services that adhere to the PPSM CAL.
Ports, protocols, and services within the RKE2 runtime must be controlled and conform to the PPSM CAL. Those ports, protocols, and services that fall outside the PPSM CAL must be blocked by the run...Rule Medium Severity -
Rancher RKE2 must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after five minutes of inactivity.
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port th...Rule Medium Severity -
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.
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 ...Rule Medium Severity -
Rancher RKE2 must prohibit the installation of patches, updates, and instantiation of container images without explicit privileged status.
Controlling access to those users and roles responsible for patching and updating RKE2 reduces the risk of untested or potentially malicious software from being installed within the platform. This ...Rule Medium Severity -
Rancher RKE2 keystore must implement encryption to prevent unauthorized disclosure of information at rest within Rancher RKE2.
Encrypting secrets at rest in etcd. By default, RKE2 will create an encryption key and configuration file and pass these to the Kubernetes API server. The result is that RKE2 automatically encrypt...Rule High Severity -
Rancher RKE2 must remove old components after updated versions have been installed.
Previous versions of Rancher RKE2 components that are not removed after updates have been installed may be exploited by adversaries by causing older components to execute which contain vulnerabilit...Rule Medium Severity -
Rancher RKE2 registry must contain the latest images with most recent updates and execute within Rancher RKE2 runtime as authorized by IAVM, CTOs, DTMs, and STIGs.
Software supporting RKE2, images in the registry must stay up to date with the latest patches, service packs, and hot fixes. Not updating RKE2 and container images will expose the organization to v...Rule Medium Severity -
Rancher RKE2 must be built from verified packages.
Only RKE2 images that have been properly signed by Rancher Government's authorized key will be deployed to ensure the cluster's security and compliance with organizational policies.Rule Medium Severity
Node 2
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