> 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/es/web/path-traversal/path-traversal-with-absolute-path-bypass-when-sequences-are-blocked.md).

# Recorrido de rutas con evasión de ruta absoluta cuando las secuencias están bloqueadas

### Recorrido de rutas de archivos, secuencias de recorrido bloqueadas con omisión mediante ruta absoluta

La aplicación bloquea las secuencias de cruce (`../`), pero trata el nombre de archivo proporcionado como si estuviera relacionado con un directorio de trabajo predeterminado.

Para resolver el laboratorio, simplemente recupera el contenido de la **/etc/passwd** archivo.

Como las secuencias de cruce están filtradas, el mecanismo se puede eludir indicando directamente una ruta absoluta:

```bash
/etc/passwd
```

Ejemplo con **curl**:

{% code overflow="wrap" %}

```bash
curl 'https://0ac400440477a34780513f2a000f00a1.web-security-academy.net/image?filename=/etc/passwd'
```

{% endcode %}

<figure><img src="/files/0e39dc1029acc68589aded645d7f21e629052689" alt=""><figcaption></figcaption></figure>


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