Merge pull request from GHSA-2f5v-8r3f-8pww

* fix: application resource APIs must enforce project restrictions

Signed-off-by: Alexander Matyushentsev <AMatyushentsev@gmail.com>

* Fix unit tests

Signed-off-by: jannfis <jann@mistrust.net>

Co-authored-by: jannfis <jann@mistrust.net>

controller/appcontroller.go

@@ -28,6 +28,7 @@ import (
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/labels"
 	apiruntime "k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
@@ -421,8 +422,12 @@ func (ctrl *ApplicationController) getResourceTree(a *appv1.Application, managed
 				},
 			})
 		} else {
-			err := ctrl.stateCache.IterateHierarchy(a.Spec.Destination.Server, kube.GetResourceKey(live), func(child appv1.ResourceNode, appName string) {
+			err := ctrl.stateCache.IterateHierarchy(a.Spec.Destination.Server, kube.GetResourceKey(live), func(child appv1.ResourceNode, appName string) bool {
+				if !proj.IsResourcePermitted(schema.GroupKind{Group: child.ResourceRef.Group, Kind: child.ResourceRef.Kind}, child.Namespace, a.Spec.Destination) {
+					return false
+				}
 				nodes = append(nodes, child)
+				return true
 			})
 			if err != nil {
 				return nil, err
@@ -432,16 +437,18 @@ func (ctrl *ApplicationController) getResourceTree(a *appv1.Application, managed
 	orphanedNodes := make([]appv1.ResourceNode, 0)
 	for k := range orphanedNodesMap {
 		if k.Namespace != "" && proj.IsGroupKindPermitted(k.GroupKind(), true) && !isKnownOrphanedResourceExclusion(k, proj) {
-			err := ctrl.stateCache.IterateHierarchy(a.Spec.Destination.Server, k, func(child appv1.ResourceNode, appName string) {
+			err := ctrl.stateCache.IterateHierarchy(a.Spec.Destination.Server, k, func(child appv1.ResourceNode, appName string) bool {
 				belongToAnotherApp := false
 				if appName != "" {
 					if _, exists, err := ctrl.appInformer.GetIndexer().GetByKey(ctrl.namespace + "/" + appName); exists && err == nil {
 						belongToAnotherApp = true
 					}
 				}
-				if !belongToAnotherApp {
-					orphanedNodes = append(orphanedNodes, child)
+				if belongToAnotherApp || !proj.IsResourcePermitted(schema.GroupKind{Group: child.ResourceRef.Group, Kind: child.ResourceRef.Kind}, child.Namespace, a.Spec.Destination) {
+					return false
 				}
+				orphanedNodes = append(orphanedNodes, child)
+				return true
 			})
 			if err != nil {
 				return nil, err
@@ -1291,6 +1298,13 @@ func (ctrl *ApplicationController) processAppRefreshQueueItem() (processNext boo
 		app.Status.Sync.Status = appv1.SyncStatusCodeUnknown
 		app.Status.Health.Status = health.HealthStatusUnknown
 		ctrl.persistAppStatus(origApp, &app.Status)
+
+		if err := ctrl.cache.SetAppResourcesTree(app.Name, &appv1.ApplicationTree{}); err != nil {
+			log.Warnf("failed to set app resource tree: %v", err)
+		}
+		if err := ctrl.cache.SetAppManagedResources(app.Name, nil); err != nil {
+			log.Warnf("failed to set app managed resources tree: %v", err)
+		}
 		return
 	}
 

controller/appcontroller_test.go

@@ -136,12 +136,12 @@ func newFakeController(data *fakeData) *ApplicationController {
 	mockStateCache.On("GetClusterCache", mock.Anything).Return(&clusterCacheMock, nil)
 	mockStateCache.On("IterateHierarchy", mock.Anything, mock.Anything, mock.Anything).Run(func(args mock.Arguments) {
 		key := args[1].(kube.ResourceKey)
-		action := args[2].(func(child argoappv1.ResourceNode, appName string))
+		action := args[2].(func(child argoappv1.ResourceNode, appName string) bool)
 		appName := ""
 		if res, ok := data.namespacedResources[key]; ok {
 			appName = res.AppName
 		}
-		action(argoappv1.ResourceNode{ResourceRef: argoappv1.ResourceRef{Kind: key.Kind, Group: key.Group, Namespace: key.Namespace, Name: key.Name}}, appName)
+		_ = action(argoappv1.ResourceNode{ResourceRef: argoappv1.ResourceRef{Kind: key.Kind, Group: key.Group, Namespace: key.Namespace, Name: key.Name}}, appName)
 	}).Return(nil)
 	return ctrl
 }

controller/cache/cache.go

@@ -108,7 +108,7 @@ type LiveStateCache interface {
 	// Returns synced cluster cache
 	GetClusterCache(server string) (clustercache.ClusterCache, error)
 	// Executes give callback against resource specified by the key and all its children
-	IterateHierarchy(server string, key kube.ResourceKey, action func(child appv1.ResourceNode, appName string)) error
+	IterateHierarchy(server string, key kube.ResourceKey, action func(child appv1.ResourceNode, appName string) bool) error
 	// Returns state of live nodes which correspond for target nodes of specified application.
 	GetManagedLiveObjs(a *appv1.Application, targetObjs []*unstructured.Unstructured) (map[kube.ResourceKey]*unstructured.Unstructured, error)
 	// IterateResources iterates all resource stored in cache
@@ -481,13 +481,13 @@ func (c *liveStateCache) IsNamespaced(server string, gk schema.GroupKind) (bool,
 	return clusterInfo.IsNamespaced(gk)
 }
 
-func (c *liveStateCache) IterateHierarchy(server string, key kube.ResourceKey, action func(child appv1.ResourceNode, appName string)) error {
+func (c *liveStateCache) IterateHierarchy(server string, key kube.ResourceKey, action func(child appv1.ResourceNode, appName string) bool) error {
 	clusterInfo, err := c.getSyncedCluster(server)
 	if err != nil {
 		return err
 	}
-	clusterInfo.IterateHierarchy(key, func(resource *clustercache.Resource, namespaceResources map[kube.ResourceKey]*clustercache.Resource) {
-		action(asResourceNode(resource), getApp(resource, namespaceResources))
+	clusterInfo.IterateHierarchy(key, func(resource *clustercache.Resource, namespaceResources map[kube.ResourceKey]*clustercache.Resource) bool {
+		return action(asResourceNode(resource), getApp(resource, namespaceResources))
 	})
 	return nil
 }

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/TomOnTime/utfutil v0.0.0-20180511104225-09c41003ee1d
 	github.com/alicebob/miniredis v2.5.0+incompatible
 	github.com/alicebob/miniredis/v2 v2.14.2
-	github.com/argoproj/gitops-engine v0.6.0
+	github.com/argoproj/gitops-engine v0.6.1-0.20220316000647-723667dff7d5
 	github.com/argoproj/notifications-engine v0.3.1-0.20220127183449-91deed20b998
 	github.com/argoproj/pkg v0.11.1-0.20211203175135-36c59d8fafe0
 	github.com/bombsimon/logrusr/v2 v2.0.1

go.sum

@@ -130,8 +130,8 @@ github.com/antonmedv/expr v1.8.9/go.mod h1:5qsM3oLGDND7sDmQGDXHkYfkjYMUX14qsgqmH
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/appscode/go v0.0.0-20190808133642-1d4ef1f1c1e0/go.mod h1:iy07dV61Z7QQdCKJCIvUoDL21u6AIceRhZzyleh2ymc=
-github.com/argoproj/gitops-engine v0.6.0 h1:Tnh6kUUVuBV0m3gueYIymAeErWl9XNN9O9JcOoNM0vU=
-github.com/argoproj/gitops-engine v0.6.0/go.mod h1:pRgVpLW7pZqf7n3COJ7UcDepk4cI61LAcJd64Q3Jq/c=
+github.com/argoproj/gitops-engine v0.6.1-0.20220316000647-723667dff7d5 h1:QZvSvXHKx/hKTvbw3EK+u9JDVlo6UvC4+IVqNIGbcUo=
+github.com/argoproj/gitops-engine v0.6.1-0.20220316000647-723667dff7d5/go.mod h1:pRgVpLW7pZqf7n3COJ7UcDepk4cI61LAcJd64Q3Jq/c=
 github.com/argoproj/notifications-engine v0.3.1-0.20220127183449-91deed20b998 h1:V9RDg+IZeebnm3XjkfkbN07VM21Fu1Cy/RJNoHO++VM=
 github.com/argoproj/notifications-engine v0.3.1-0.20220127183449-91deed20b998/go.mod h1:5mKv7zEgI3NO0L+fsuRSwBSY9EIXSuyIsDND8O8TTIw=
 github.com/argoproj/pkg v0.11.1-0.20211203175135-36c59d8fafe0 h1:Cfp7rO/HpVxnwlRqJe0jHiBbZ77ZgXhB6HWlYD02Xdc=

pkg/apis/application/v1alpha1/app_project_types.go

@@ -313,11 +313,15 @@ func (proj AppProject) IsGroupKindPermitted(gk schema.GroupKind, namespaced bool
 
 // IsLiveResourcePermitted returns whether a live resource found in the cluster is permitted by an AppProject
 func (proj AppProject) IsLiveResourcePermitted(un *unstructured.Unstructured, server string, name string) bool {
-	if !proj.IsGroupKindPermitted(un.GroupVersionKind().GroupKind(), un.GetNamespace() != "") {
+	return proj.IsResourcePermitted(un.GroupVersionKind().GroupKind(), un.GetNamespace(), ApplicationDestination{Server: server, Name: name})
+}
+
+func (proj AppProject) IsResourcePermitted(groupKind schema.GroupKind, namespace string, dest ApplicationDestination) bool {
+	if !proj.IsGroupKindPermitted(groupKind, namespace != "") {
 		return false
 	}
-	if un.GetNamespace() != "" {
-		return proj.IsDestinationPermitted(ApplicationDestination{Server: server, Namespace: un.GetNamespace(), Name: name})
+	if namespace != "" {
+		return proj.IsDestinationPermitted(ApplicationDestination{Server: dest.Server, Name: dest.Name, Namespace: namespace})
 	}
 	return true
 }

server/application/application.go

@@ -488,6 +488,21 @@ func (s *Server) ListResourceEvents(ctx context.Context, q *application.Applicat
 			"involvedObject.namespace": a.Namespace,
 		}).String()
 	} else {
+		tree, err := s.getAppResources(ctx, a)
+		if err != nil {
+			return nil, err
+		}
+		found := false
+		for _, n := range append(tree.Nodes, tree.OrphanedNodes...) {
+			if n.ResourceRef.UID == q.ResourceUID && n.ResourceRef.Name == q.ResourceName && n.ResourceRef.Namespace == q.ResourceNamespace {
+				found = true
+				break
+			}
+		}
+		if !found {
+			return nil, status.Errorf(codes.InvalidArgument, "%s not found as part of application %s", q.ResourceName, *q.Name)
+		}
+
 		namespace = q.ResourceNamespace
 		var config *rest.Config
 		config, err = s.getApplicationClusterConfig(ctx, a)
@@ -937,7 +952,7 @@ func (s *Server) getAppResources(ctx context.Context, a *appv1.Application) (*ap
 	return &tree, err
 }
 
-func (s *Server) getAppResource(ctx context.Context, action string, q *application.ApplicationResourceRequest) (*appv1.ResourceNode, *rest.Config, *appv1.Application, error) {
+func (s *Server) getAppLiveResource(ctx context.Context, action string, q *application.ApplicationResourceRequest) (*appv1.ResourceNode, *rest.Config, *appv1.Application, error) {
 	a, err := s.appLister.Get(*q.Name)
 	if err != nil {
 		return nil, nil, nil, err
@@ -952,7 +967,7 @@ func (s *Server) getAppResource(ctx context.Context, action string, q *applicati
 	}
 
 	found := tree.FindNode(q.Group, q.Kind, q.Namespace, q.ResourceName)
-	if found == nil {
+	if found == nil || found.ResourceRef.UID == "" {
 		return nil, nil, nil, status.Errorf(codes.InvalidArgument, "%s %s %s not found as part of application %s", q.Kind, q.Group, q.ResourceName, *q.Name)
 	}
 	config, err := s.getApplicationClusterConfig(ctx, a)
@@ -963,7 +978,7 @@ func (s *Server) getAppResource(ctx context.Context, action string, q *applicati
 }
 
 func (s *Server) GetResource(ctx context.Context, q *application.ApplicationResourceRequest) (*application.ApplicationResourceResponse, error) {
-	res, config, _, err := s.getAppResource(ctx, rbacpolicy.ActionGet, q)
+	res, config, _, err := s.getAppLiveResource(ctx, rbacpolicy.ActionGet, q)
 	if err != nil {
 		return nil, err
 	}
@@ -1008,7 +1023,7 @@ func (s *Server) PatchResource(ctx context.Context, q *application.ApplicationRe
 		Version:      q.Version,
 		Group:        q.Group,
 	}
-	res, config, a, err := s.getAppResource(ctx, rbacpolicy.ActionUpdate, resourceRequest)
+	res, config, a, err := s.getAppLiveResource(ctx, rbacpolicy.ActionUpdate, resourceRequest)
 	if err != nil {
 		return nil, err
 	}
@@ -1048,7 +1063,7 @@ func (s *Server) DeleteResource(ctx context.Context, q *application.ApplicationR
 		Version:      q.Version,
 		Group:        q.Group,
 	}
-	res, config, a, err := s.getAppResource(ctx, rbacpolicy.ActionDelete, resourceRequest)
+	res, config, a, err := s.getAppLiveResource(ctx, rbacpolicy.ActionDelete, resourceRequest)
 	if err != nil {
 		return nil, err
 	}
@@ -1335,7 +1350,7 @@ func getSelectedPods(treeNodes []appv1.ResourceNode, q *application.ApplicationP
 	var pods []appv1.ResourceNode
 	isTheOneMap := make(map[string]bool)
 	for _, treeNode := range treeNodes {
-		if treeNode.Kind == kube.PodKind && treeNode.Group == "" {
+		if treeNode.Kind == kube.PodKind && treeNode.Group == "" && treeNode.UID != "" {
 			if isTheSelectedOne(&treeNode, q, treeNodes, isTheOneMap) {
 				pods = append(pods, treeNode)
 			}
@@ -1625,7 +1640,7 @@ func (s *Server) logResourceEvent(res *appv1.ResourceNode, ctx context.Context,
 }
 
 func (s *Server) ListResourceActions(ctx context.Context, q *application.ApplicationResourceRequest) (*application.ResourceActionsListResponse, error) {
-	res, config, _, err := s.getAppResource(ctx, rbacpolicy.ActionGet, q)
+	res, config, _, err := s.getAppLiveResource(ctx, rbacpolicy.ActionGet, q)
 	if err != nil {
 		return nil, err
 	}
@@ -1676,7 +1691,7 @@ func (s *Server) RunResourceAction(ctx context.Context, q *application.ResourceA
 		Group:        q.Group,
 	}
 	actionRequest := fmt.Sprintf("%s/%s/%s/%s", rbacpolicy.ActionAction, q.Group, q.Kind, q.Action)
-	res, config, a, err := s.getAppResource(ctx, actionRequest, resourceRequest)
+	res, config, a, err := s.getAppLiveResource(ctx, actionRequest, resourceRequest)
 	if err != nil {
 		return nil, err
 	}