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GHSA-f9xf-jq4j-vqw4

Rancher does not properly specify ApiGroup when creating Kubernetes RBAC resources

Source: GitHub Advisory Database (reviewed) High CVE-2021-25318

Packages

EcosystemPackageAffectedFixed in
Go github.com/rancher/rancher >= 2.0.0, < 2.4.16 2.4.16
Go github.com/rancher/rancher >= 2.5.0, < 2.5.9 2.5.9

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability was discovered in Rancher versions 2.0 through the aforementioned fixed versions, where users were granted access to resources regardless of the resource's API group. For example Rancher should have allowed users access to `apps.catalog.cattle.io`, but instead incorrectly gave access to `apps.*`. Resource affected include: **Downstream clusters:** apiservices clusters clusterrepos persistentvolumes storageclasses **Rancher management cluster** apprevisions apps catalogtemplates catalogtemplateversions clusteralertgroups clusteralertrules clustercatalogs clusterloggings clustermonitorgraphs clusterregistrationtokens clusterroletemplatebindings clusterscans etcdbackups nodepools nodes notifiers pipelineexecutions pipelines pipelinesettings podsecuritypolicytemplateprojectbindings projectalertgroups projectalertrules projectcatalogs projectloggings projectmonitorgraphs projectroletemplatebindings projects secrets sourcecodeproviderconfigs There is not a direct mitigation besides upgrading to the patched Rancher versions.

References

External links from the advisory. They lead to third-party sites.