II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000133-CTR-000300
<GroupDescription></GroupDescription>Group -
Configuration and authentication files for Rancher RKE2 must be protected.
<VulnDiscussion>There are various configuration files, logs, access credentials, and other files stored on the host filesystem that contain s...Rule Medium Severity -
SRG-APP-000141-CTR-000315
<GroupDescription></GroupDescription>Group -
Rancher RKE2 must be configured with only essential configurations.
<VulnDiscussion>It is important to disable any unnecessary components to reduce any potential attack surfaces. RKE2 allows disabling the fo...Rule Medium Severity -
SRG-APP-000142-CTR-000325
<GroupDescription></GroupDescription>Group -
Rancher RKE2 runtime must enforce ports, protocols, and services that adhere to the PPSM CAL.
<VulnDiscussion>Ports, protocols, and services within the RKE2 runtime must be controlled and conform to the PPSM CAL. Those ports, protocols...Rule Medium Severity -
SRG-APP-000171-CTR-000435
<GroupDescription></GroupDescription>Group -
Rancher RKE2 must store only cryptographic representations of passwords.
<VulnDiscussion>Secrets, such as passwords, keys, tokens, and certificates should not be stored as environment variables. These environment v...Rule Medium Severity -
SRG-APP-000190-CTR-000500
<GroupDescription></GroupDescription>Group -
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.
<VulnDiscussion>Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...Rule Medium Severity -
SRG-APP-000233-CTR-000585
<GroupDescription></GroupDescription>Group -
Rancher RKE2 runtime must isolate security functions from nonsecurity functions.
<VulnDiscussion>RKE2 runs as isolated as possible. RKE2 is a container-based Kubernetes distribution. A container image is essentially a com...Rule Medium Severity -
SRG-APP-000243-CTR-000600
<GroupDescription></GroupDescription>Group -
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.
<VulnDiscussion>Separating user functionality from management functionality is a requirement for all the components within the Kubernetes Con...Rule Medium Severity -
SRG-APP-000340-CTR-000770
<GroupDescription></GroupDescription>Group -
Rancher RKE2 must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.
<VulnDiscussion>Admission controllers intercept requests to the Kubernetes API before an object is instantiated. Enabling the admissions webh...Rule Medium Severity -
SRG-APP-000378-CTR-000880
<GroupDescription></GroupDescription>Group -
Rancher RKE2 must prohibit the installation of patches, updates, and instantiation of container images without explicit privileged status.
<VulnDiscussion>Controlling access to those users and roles responsible for patching and updating RKE2 reduces the risk of untested or potent...Rule Medium Severity -
SRG-APP-000429-CTR-001060
<GroupDescription></GroupDescription>Group -
Rancher RKE2 keystore must implement encryption to prevent unauthorized disclosure of information at rest within Rancher RKE2.
<VulnDiscussion>Encrypting secrets at rest in etcd. By default, RKE2 will create an encryption key and configuration file and pass these to ...Rule Medium Severity
Node 2
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