> 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/active-directory/kerberos/kerberos-key-components.md).

# Componentes clave de Kerberos

Notas de seguridad de Active Directory para Componentes clave de Kerberos, que cubren enumeración, Kerberos, credenciales, abuso de ACL, movimiento lateral, flujo de explotación y pasos de validación.

#### KDC

El **KDC**, o **Centro de distribución de claves**, se instala en el controlador de dominio.

Es responsable de emitir tickets Kerberos.

Contiene dos componentes principales:

* **AS** : Servicio de autenticación ;
* **TGS** : Servicio de concesión de tickets.

#### AS — Servicio de autenticación

El **AS** es la parte del KDC responsable de la autenticación inicial del usuario.

Ocurre cuando el usuario se conecta al dominio.

#### TGS — Servicio de concesión de tickets

El **TGS** es la parte del KDC responsable de proporcionar tickets para acceder a servicios específicos.

Ejemplos de servicios:

* recurso compartido SMB;
* servicio HTTP;
* MSSQL;
* LDAP;
* CIFS;
* servicio de aplicación interna.

#### cuenta krbtgt

En Active Directory, se crea de forma predeterminada una cuenta especial:

```
krbtgt
```

Esta cuenta es utilizada por el KDC para firmar y cifrar ciertos tickets Kerberos.

Es extremadamente sensible porque está relacionada con el funcionamiento de la autenticación Kerberos en el dominio.

<figure><img src="https://754079710-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-7c8a6ef448c24f1baeab22ace91f57c2243c2e89%2F%7B7BBF6600-3664-4149-8F1E-EEF1CFBBD6E6%7D.png?alt=media" alt=""><figcaption></figcaption></figure>


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