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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
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andres-portainer 2021-11-01 08:01:03 -03:00 • committed by GitHub
parent c763219f74
commit 28f71e486a
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21 changed files with 292 additions and 176 deletions
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3
api/http/handler/stacks/update_kubernetes_stack.go
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@ -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}
}