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RKE2 must use a centralized user management solution to support account management functions.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-254554CNTR-R2-000030SV-254554r1043176_ruleCCI-000015medium
Description
The Kubernetes Controller Manager is a background process that embeds core control loops regulating cluster system state through the API Server. Every process executed in a pod has an associated service account. By default, service accounts use the same credentials for authentication. Implementing the default settings poses a high risk to the Kubernetes Controller Manager. Setting the use-service-account-credential value lowers the attack surface by generating unique service accounts settings for each controller instance.
STIGDate
Rancher Government Solutions RKE2 Security Technical Implementation Guide2026-05-13

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) 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.

IAC-15.1Automated System Account Management (Directory Services)
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (72) 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-10Concurrent Session Control
1.00
AC-12Session Termination
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-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00

+62 more (top 10 by confidence shown)

CCI1 mapping
CCI-000015
1.00

Details

Check Text (C-254554r1043176_chk)

Ensure use-service-account-credentials argument is set correctly. Run this command on the RKE2 Control Plane: /bin/ps -ef | grep kube-controller-manager | grep -v grep If --use-service-account-credentials argument is not set to "true" or is not configured, this is a finding.

Fix Text (F-57987r918225_fix)

Edit the RKE2 Configuration File /etc/rancher/rke2/config.yaml on the RKE2 Control Plane and set the following "kube-controller-manager-arg" argument: - use-service-account-credentials=true Once the configuration file is updated, restart the RKE2 Server. Run the command: systemctl restart rke2-server