> 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/web-cache-deception/web-cache-deception-by-path-manipulation.md).

# Engaño de caché web mediante manipulación de rutas

### Explotando el mapeo de rutas para la confusión de caché web

#### Objetivo del laboratorio

Recuperar \*\* clave API\*\* del usuario **carlos**. / Credenciales proporcionadas: **wiener:peter**.

#### Observaciones

* En **Mi cuenta** (my-account), la \*\* clave API\*\* aparece **en claro** para nuestro propio usuario.

<figure><img src="/files/cf6e5b559eac613d47bd3aa7374e815316a804e6" alt=""><figcaption></figcaption></figure>

* Inicialmente, no hay indicación directa (en la respuesta) de que haya **caché**.

<figure><img src="/files/88391f16a6b9c092277cfec73290dd2d4551cade" alt=""><figcaption></figcaption></figure>

* Sin embargo, al añadir segmentos a la URL, la aplicación sigue mostrando la **my-account** página, lo que sugiere una **lógica de mapeo de rutas** potencialmente compatible con la caché.

Ejemplos probados:

* `/my-account/TESTTTTTT` → La aplicación siempre lo trata como **my-account**

<figure><img src="/files/42eedd8fc0056426c62df3dde90f50563060c3a0" alt=""><figcaption></figcaption></figure>

* `/my-account/TESTTT.js` → extensión **.js** se acepta e interpreta (útil para engañar las reglas de caché)

<figure><img src="/files/b183107d343081e7e7a351568684319ed8e809da" alt=""><figcaption></figcaption></figure>

Desde el**Servidor de explotación**, forzar a una víctima a cargar una URL del tipo "static" que apunta a my-account:

{% code overflow="wrap" %}

```javascript
<script>
    document.location="https://0afd005204a0683b803d1ce200320070.web-security-academy.net/my-account/jordan.js";
</script>
```

{% endcode %}

<figure><img src="/files/9e54019a1c619e3b0a40b3f445234aea50f89e42" alt=""><figcaption></figcaption></figure>

1. Visitando:

* `/my-account/jordan.js`/ se obtiene una respuesta que muestra la \*\* clave API de carlos\*\*.

#### Resultado

La clave API de **carlos** se muestra mediante una URL camuflada (con `.js` extensión) que permite aprovechar el comportamiento de caché/enrutamiento (`/my-account/<quelque_chose>.js`).

<figure><img src="/files/5f28aa909bdbc7d69496b822a830b8e044f6674d" alt=""><figcaption></figcaption></figure>


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