Weak Default Password on System VMs.

### The required feature described as a wish

**Description:** By default, CloudStack uses a hard-coded password for all System VMs.

**Affected Components:** System VMs (SSVM, CPVM, and VR)

**Impact:** An attacker who knows the default credentials, which are publicly documented, and has console access to any System VM could log in as `root`.

- On a VR: the attacker could act as a man-in-the-middle (MITM).
- On a SSVM: the attacker could tamper with templates and ISOs, and delete snapshots.
- On a CPVM: the attacker could potentially install a keylogger on noVNC sessions.

Steps to Reproduce:

- Open the Console of any System VM.
- Enter the default username `root` and password `password`.

**Recommended Remediation:** Enable randomization of System VM passwords by default, while allowing administrators to disable this behavior if needed.

**Note:** This feature already exists. Additionally, documentation improvements have been proposed to clarify how to enable and use it.

Comience localizando la funcionalidad existente de aleatorización de contraseñas de la System VM y la documentación propuesta en este issue; no se nombran archivos ni pruebas específicos. Compruebe cómo se aplica el comportamiento a SSVM, CPVM y VR, incluidos el valor predeterminado de configuración y la opción de exclusión. Se considera completado cuando las contraseñas se aleatorizan de forma predeterminada, los administradores aún pueden deshabilitar este comportamiento y el uso está documentado claramente.

Escrito por el modelo de indexación a partir del texto del issue.