A flaw was found in Open Cluster Management (OCM) when a user has access to the worker nodes which contain the cluster-manager or klusterlet deployments. The cluster-manager deployment uses a service account with the same name cluster-manager which is bound to a ClusterRole also named cluster-manager, which includes the permission to create Pod resources. If this deployment runs a pod on an attacker-controlled node, the attacker can obtain the cluster-managers token and steal any service account token by creating and mounting the target service account to control the whole cluster.
The product mixes trusted and untrusted data in the same data structure or structured message.