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Code Issues Releases Activity

fix(filesystem): harden the filesystem service to avoid path traversal attacks EE-1922 (#5957)

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fix(filesystem): harden the filesystem service to avoid path traversal attacks EE-1922
This commit is contained in:
andres-portainer 2021-11-01 08:01:03 -03:00 • committed by GitHub
parent c763219f74
commit 28f71e486a
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GPG key ID: 4AEE18F83AFDEB23
21 changed files with 292 additions and 176 deletions
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6
api/http/handler/stacks/create_compose_stack.go
View file

@ -3,7 +3,6 @@ package stacks
import (
"fmt"
"net/http"
"path"
"strconv"
"time"
@ -389,10 +388,9 @@ func (handler *Handler) deployComposeStack(config *composeStackDeploymentConfig)
!isAdminOrEndpointAdmin {
for _, file := range append([]string{config.stack.EntryPoint}, config.stack.AdditionalFiles...) {
path := path.Join(config.stack.ProjectPath, file)
stackContent, err := handler.FileService.GetFileContent(path)
stackContent, err := handler.FileService.GetFileContent(config.stack.ProjectPath, file)
if err != nil {
return errors.Wrapf(err, "failed to get stack file content `%q`", path)
return errors.Wrapf(err, "failed to get stack file content `%q`", file)
}
err = handler.isValidStackFile(stackContent, securitySettings)

4
api/http/handler/stacks/create_swarm_stack.go
View file

@ -3,7 +3,6 @@ package stacks
import (
"fmt"
"net/http"
"path"
"strconv"
"time"
@ -399,8 +398,7 @@ func (handler *Handler) deploySwarmStack(config *swarmStackDeploymentConfig) err
if !settings.AllowBindMountsForRegularUsers && !isAdminOrEndpointAdmin {
for _, file := range append([]string{config.stack.EntryPoint}, config.stack.AdditionalFiles...) {
path := path.Join(config.stack.ProjectPath, file)
stackContent, err := handler.FileService.GetFileContent(path)
stackContent, err := handler.FileService.GetFileContent(config.stack.ProjectPath, file)
if err != nil {
return errors.WithMessage(err, "failed to get stack file content")
}

5
api/http/handler/stacks/stack_delete.go
View file

@ -6,7 +6,6 @@ import (
"io/ioutil"
"net/http"
"os"
"path"
"strconv"
"github.com/pkg/errors"
@ -198,8 +197,8 @@ func (handler *Handler) deleteStack(userID portainer.UserID, stack *portainer.St
defer os.RemoveAll(tmpDir)
for _, fileName := range fileNames {
manifestFilePath := path.Join(tmpDir, fileName)
manifestContent, err := ioutil.ReadFile(path.Join(stack.ProjectPath, fileName))
manifestFilePath := filesystem.JoinPaths(tmpDir, fileName)
manifestContent, err := handler.FileService.GetFileContent(stack.ProjectPath, fileName)
if err != nil {
return errors.Wrap(err, "failed to read manifest file")
}

3
api/http/handler/stacks/stack_file.go
View file

@ -2,7 +2,6 @@ package stacks
import (
"net/http"
"path"
httperror "github.com/portainer/libhttp/error"
"github.com/portainer/libhttp/request"
@ -82,7 +81,7 @@ func (handler *Handler) stackFile(w http.ResponseWriter, r *http.Request) *httpe
}
}
stackFileContent, err := handler.FileService.GetFileContent(path.Join(stack.ProjectPath, stack.EntryPoint))
stackFileContent, err := handler.FileService.GetFileContent(stack.ProjectPath, stack.EntryPoint)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve Compose file from disk", err}
}

3
api/http/handler/stacks/update_kubernetes_stack.go
View file

@ -5,7 +5,6 @@ import (
"io/ioutil"
"net/http"
"os"
"path"
"strconv"
"github.com/asaskevich/govalidator"
@ -108,7 +107,7 @@ func (handler *Handler) updateKubernetesStack(r *http.Request, stack *portainer.
tempFileDir, _ := ioutil.TempDir("", "kub_file_content")
defer os.RemoveAll(tempFileDir)
if err := filesystem.WriteToFile(path.Join(tempFileDir, stack.EntryPoint), []byte(payload.StackFileContent)); err != nil {
if err := filesystem.WriteToFile(filesystem.JoinPaths(tempFileDir, stack.EntryPoint), []byte(payload.StackFileContent)); err != nil {
return &httperror.HandlerError{StatusCode: http.StatusInternalServerError, Message: "Failed to persist deployment file in a temp directory", Err: err}
}