Rancher MCM must enforce organization-defined circumstances and/or usage conditions for organization-defined accounts.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-252848	CNTR-RM-000970	SV-252848r819994_rule		Medium

Description
Rancher MCM must verify the certificate used for Rancher's ingress is a valid DOD certificate. This is achieved by verifying the helm installation contains correct parameters.

STIG	Date
Rancher Government Solutions Multi-Cluster Manager Security Technical Implementation Guide	2022-08-31

Details

Check Text ( C-56304r819992_chk )
Verify helm installation contains correct parameters: Navigate to Triple Bar Symbol(Global) >> . From the kubectl shell (>_) Execute: `helm get values rancher -n cattle-system` The output must contain: ``` privateCA: true ingress: tls: source: secret ``` If the output source is not "secret", this is a finding. Verify contents of certificates are correct: From the console, type: kubectl -n cattle-system get secret tls-rancher-ingress -o 'jsonpath={.data.tls\.crt}' \| base64 --decode \| openssl x509 -noout -text kubectl -n cattle-system get secret tls-ca -o 'jsonpath={.data.cacerts\.pem}' \| base64 --decode \| openssl x509 -noout -text

Check Text ( C-56304r819992_chk )

Verify helm installation contains correct parameters:
Navigate to Triple Bar Symbol(Global) >> .
From the kubectl shell (>_) Execute:
`helm get values rancher -n cattle-system`

The output must contain:
```
privateCA: true
ingress:
tls:
source: secret
```
If the output source is not "secret", this is a finding.

Verify contents of certificates are correct:
From the console, type:
kubectl -n cattle-system get secret tls-rancher-ingress -o 'jsonpath={.data.tls\.crt}' | base64 --decode | openssl x509 -noout -text

kubectl -n cattle-system get secret tls-ca -o 'jsonpath={.data.cacerts\.pem}' | base64 --decode | openssl x509 -noout -text

Fix Text (F-56254r819993_fix)
Update the secrets to contain valid certificates. Put the correct and valid DOD certificate and key in files called "tls.crt" and "tls.key", respectively, and then run: kubectl -n cattle-system create secret tls tls-rancher-ingress \ --cert=tls.crt \ --key=tls.key Upload the CA required for the certs by creating another file called "cacerts.pem" and running: kubectl -n cattle-system create secret generic tls-ca \ --from-file=cacerts.pem=./cacerts.pem The helm chart values need to be updated to include the check section: privateCA: true ingress: tls: source: secret Re-run helm upgrade with the new values for the certs to take effect.

Fix Text (F-56254r819993_fix)

Update the secrets to contain valid certificates.

Put the correct and valid DOD certificate and key in files called "tls.crt" and "tls.key", respectively, and then run:
kubectl -n cattle-system create secret tls tls-rancher-ingress \ --cert=tls.crt \ --key=tls.key

Upload the CA required for the certs by creating another file called "cacerts.pem" and running:
kubectl -n cattle-system create secret generic tls-ca \ --from-file=cacerts.pem=./cacerts.pem

The helm chart values need to be updated to include the check section:
privateCA: true
ingress:
tls:
source: secret

Re-run helm upgrade with the new values for the certs to take effect.