> 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/ssrf/basic-ssrf-against-local-server.md).

# SSRF básico contra el servidor local

Notas de SSRF básico contra el servidor local para laboratorios de PortSwigger Web Security Academy, incluido el flujo de explotación, pruebas de payloads, validación con Burp Suite y contexto de remediación.

### SSRF básico contra el servidor local

Este laboratorio ofrece una función de verificación de stock que consulta un servicio interno. / El objetivo es modificar la URL utilizada por esta comprobación para acceder a la interfaz de administración disponible en `HTTP://localhost/admin` y luego eliminar al usuario **carlos**.

#### **Análisis y explotación**

El **stockApi** el parámetro envía una consulta a una URL interna:

```bash
stockApi=http://stock.weliketoshop.net:8080/product/stock/check?productId=1&storeId=1
```

Al interceptar la solicitud, es posible reemplazar esta URL por un destino local. / El servidor procesa correctamente el siguiente valor:

```javascript
stockApi=http://localhost/admin
```

<figure><img src="https://754079710-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-5f1135ef7a777270cae920e4e524c9c78b0e4bda%2Fimage%20(337).png?alt=media" alt=""><figcaption></figcaption></figure>

Esto permite mostrar la interfaz de administración.

#### **Eliminación del usuario**

En el código HTML de la interfaz de administración, observamos el parámetro usado para eliminar a un usuario:

```
/admin/delete?username=carlos
```

<figure><img src="https://754079710-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-9f056e8db3df4ebc8a07a5cbb7852ca26f7d3ad8%2Fimage%20(338).png?alt=media" alt=""><figcaption></figcaption></figure>


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