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Rancher RKE2 must be configured with only essential configurations.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-254565CNTR-R2-000550SV-254565r960963_ruleCCI-000381medium
Description
It is important to disable any unnecessary components to reduce any potential attack surfaces. RKE2 allows disabling the following components: - rke2-canal - rke2-coredns - rke2-ingress-nginx - rke2-kube-proxy - rke2-metrics-server If utilizing any of these components presents a security risk, or if any of the components are not required then they can be disabled by using the "disable" flag. If any of the components are not required, they can be disabled by using the "disable" flag. Satisfies: SRG-APP-000141-CTR-000315, SRG-APP-000384-CTR-000915
STIGDate
Rancher Government Solutions RKE2 Security Technical Implementation Guide2024-12-20

Related Frameworks

2 mappings across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (7) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
CFG-02Secure Baseline Configurations
1.00
CFG-03Least Functionality
1.00
CFG-03.2Prevent Unauthorized Software Execution
1.00
CFG-05User-Installed Software
1.00
END-03Prohibit Installation Without Privileged Status
1.00
SEA-06Prevent Program Execution
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (61) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-11Device Lock
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-18(1)Authentication and Encryption
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00

+51 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.6
1.00
3.4.7
1.00
CCI2 mappings
CCI-000381
1.00
CCI-001764
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.PS-01
1.00
PR.PS-05
1.00

Who does this work

8 NICE work roles and 8 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-254565r960963_chk)

Ensure the RKE2 Server configuration file on all RKE2 Server hosts contains a "disable" flag only if there are default RKE2 components that need to be disabled. If there are no default components that need to be disabled, this is not a finding. Run this command on the RKE2 Control Plane: cat /etc/rancher/rke2/config.yaml RKE2 allows disabling the following components. If any of the components are not required, they can be disabled: - rke2-canal - rke2-coredns - rke2-ingress-nginx - rke2-kube-proxy - rke2-metrics-server If services not in use are enabled, this is a finding.

Fix Text (F-57998r918243_fix)

Disable unnecessary RKE2 components. Edit the RKE2 Server configuration file on all RKE2 Server hosts, located at /etc/rancher/rke2/config.yaml, so that it contains a "disable" flag if any default RKE2 components are unnecessary. Example: disable: rke2-canal disable: rke2-coredns disable: rke2-ingress-nginx disable: rke2-kube-proxy disable: rke2-metrics-server Once the configuration file is updated, restart the RKE2 Server. Run the command: systemctl restart rke2-server