diff options
| author | Sebastian Lackner | 2017-11-22 06:11:19 +0100 |
|---|---|---|
| committer | rfjakob | 2017-11-22 23:42:08 +0100 |
| commit | c547673529cb4934ab885081f5682e85aa994f79 (patch) | |
| tree | e3ebf3f871bae7829ea4b8377a3ca33eb648afe2 /internal/nametransform | |
| parent | f3c777d5eaa682d878c638192311e52f9c204294 (diff) | |
nametransform: Return error if decrypted name is '.' or '..'
Diffstat (limited to 'internal/nametransform')
| -rw-r--r-- | internal/nametransform/names.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/internal/nametransform/names.go b/internal/nametransform/names.go index 94fa453..65e6f06 100644 --- a/internal/nametransform/names.go +++ b/internal/nametransform/names.go @@ -65,6 +65,10 @@ func (n *NameTransform) DecryptName(cipherName string, iv []byte) (string, error if bytes.Contains(bin, []byte{0}) || bytes.Contains(bin, []byte("/")) { return "", syscall.EBADMSG } + // The name should never be "." or "..". + if bytes.Equal(bin, []byte(".")) || bytes.Equal(bin, []byte("..")) { + return "", syscall.EBADMSG + } plain := string(bin) return plain, err } |