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Kubernetes Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • The Kubernetes etcd must have file permissions set to 644 or more restrictive.

    <VulnDiscussion>The Kubernetes etcd key-value store provides a way to store data to the Control Plane. If these files can be changed, data to...
    Rule Medium Severity
    Show

  • SRG-APP-000516-CTR-001335

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes admin kubeconfig must have file permissions set to 644 or more restrictive.

    &lt;VulnDiscussion&gt;The Kubernetes admin kubeconfig files contain the arguments and settings for the Control Plane services. These services are c...
    Rule Medium Severity
    Show

  • SRG-APP-000516-CTR-001335

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000190-CTR-000500

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000014-CTR-000035

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes Scheduler must use TLS 1.2, at a minimum, to protect the confidentiality of sensitive data during electronic dissemination.

    &lt;VulnDiscussion&gt;The Kubernetes Scheduler will prohibit the use of SSL and unauthorized versions of TLS protocols to properly secure communica...
    Rule Medium Severity
    Show

  • SRG-APP-000014-CTR-000040

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API Server must use TLS 1.2, at a minimum, to protect the confidentiality of sensitive data during electronic dissemination.

    &lt;VulnDiscussion&gt;The Kubernetes API Server will prohibit the use of SSL and unauthorized versions of TLS protocols to properly secure communic...
    Rule Medium Severity
    Show

  • SRG-APP-000014-CTR-000035

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes etcd must enforce ports, protocols, and services (PPS) that adhere to the Ports, Protocols, and Services Management Category Assurance List (PPSM CAL).

    &lt;VulnDiscussion&gt;Kubernetes etcd PPS must be controlled and conform to the PPSM CAL. Those PPS that fall outside the PPSM CAL must be blocked....
    Rule Medium Severity
    Show

  • The Kubernetes Scheduler must enforce ports, protocols, and services (PPS) that adhere to the Ports, Protocols, and Services Management Category Assurance List (PPSM CAL).

    &lt;VulnDiscussion&gt;Kubernetes Scheduler PPS must be controlled and conform to the PPSM CAL. Those ports, protocols, and services that fall outsi...
    Rule Medium Severity
    Show

  • The Kubernetes etcd must use TLS to protect the confidentiality of sensitive data during electronic dissemination.

    &lt;VulnDiscussion&gt;Kubernetes etcd will prohibit the use of SSL and unauthorized versions of TLS protocols to properly secure communication. Th...
    Rule Medium Severity
    Show

  • SRG-APP-000014-CTR-000035

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000142-CTR-000330

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000142-CTR-000330

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes etcd must use TLS to protect the confidentiality of sensitive data during electronic dissemination.

    &lt;VulnDiscussion&gt;The Kubernetes API Server will prohibit the use of SSL and unauthorized versions of TLS protocols to properly secure communic...
    Rule Medium Severity
    Show

  • SRG-APP-000023-CTR-000055

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes Controller Manager must create unique service accounts for each work payload.

    &lt;VulnDiscussion&gt;The Kubernetes Controller Manager is a background process that embeds core control loops regulating cluster system state thro...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000090

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API Server must enable Node,RBAC as the authorization mode.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DOD-ap...
    Rule Medium Severity
    Show

  • SRG-APP-000038-CTR-000105

    <GroupDescription></GroupDescription>
    Group
    Show

  • User-managed resources must be created in dedicated namespaces.

    &lt;VulnDiscussion&gt;Creating namespaces for user-managed resources is important when implementing Role-Based Access Controls (RBAC). RBAC allows ...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000090

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes Scheduler must have secure binding.

    &lt;VulnDiscussion&gt;Limiting the number of attack vectors and implementing authentication and encryption on the endpoints available to external s...
    Rule Medium Severity
    Show

  • SRG-APP-000033-CTR-000090

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes Controllers must enforce ports, protocols, and services (PPS) that adhere to the Ports, Protocols, and Services Management Category Assurance List (PPSM CAL).

    &lt;VulnDiscussion&gt;Kubernetes Controller ports, protocols, and services must be controlled and conform to the PPSM CAL. Those PPS that fall outs...
    Rule Medium Severity
    Show

  • The Kubernetes Controller Manager must have secure binding.

    &lt;VulnDiscussion&gt;Limiting the number of attack vectors and implementing authentication and encryption on the endpoints available to external s...
    Rule Medium Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API server must have the insecure port flag disabled.

    &lt;VulnDiscussion&gt;By default, the API server will listen on two ports. One port is the secure port and the other port is called the "localhost ...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes Kubelet must have the "readOnlyPort" flag disabled.

    &lt;VulnDiscussion&gt;Kubelet serves a small REST API with read access to port 10255. The read-only port for Kubernetes provides no authentication ...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API server must have the insecure bind address not set.

    &lt;VulnDiscussion&gt;By default, the API server will listen on two ports and addresses. One address is the secure address and the other address is...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000100

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API server must have the secure port set.

    &lt;VulnDiscussion&gt;By default, the API server will listen on what is rightfully called the secure port, port 6443. Any requests to this port wil...
    Rule Medium Severity
    Show

  • SRG-APP-000033-CTR-000100

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000142-CTR-000325

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API Server must have an audit log path set.

    &lt;VulnDiscussion&gt;When Kubernetes is started, components and user services are started for auditing startup events, and events for components a...
    Rule Medium Severity
    Show

  • SRG-APP-000026-CTR-000070

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes API server must have anonymous authentication disabled.

    &lt;VulnDiscussion&gt;The Kubernetes API Server controls Kubernetes via an API interface. A user who has access to the API essentially has root acc...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000090

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes Kubelet must have anonymous authentication disabled.

    &lt;VulnDiscussion&gt;A user who has access to the Kubelet essentially has root access to the nodes contained within the Kubernetes Control Plane. ...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Kubernetes kubelet must enable explicit authorization.

    &lt;VulnDiscussion&gt;Kubelet is the primary agent on each node. The API server communicates with each kubelet to perform tasks such as starting/st...
    Rule High Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

  • Kubernetes Worker Nodes must not have sshd service running.

    &lt;VulnDiscussion&gt;Worker Nodes are maintained and monitored by the Control Plane. Direct access and manipulation of the nodes should not take p...
    Rule Medium Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

  • Kubernetes Worker Nodes must not have the sshd service enabled.

    &lt;VulnDiscussion&gt;Worker Nodes are maintained and monitored by the Control Plane. Direct access and manipulation of the nodes must not take pla...
    Rule Medium Severity
    Show

  • SRG-APP-000033-CTR-000095

    <GroupDescription></GroupDescription>
    Group
    Show

Node 2

siemur/test-space

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