op-packages/luci-app-interfaces-statistics/root/usr/share/rpcd/acl.d/luci-app-interfaces-statistics.json

{
	"luci-app-interfaces-statistics": {
		"description": "Grant access to interfaces-statistics procedures",
		"read": {
			"ubus": {
				"network.device": [ "status" ]
			}
		}
	}
}