> 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/web-vulnerabilities/proxys-squid-attack/proxys-squid-techniques-pentesting-web.md).
# Técnicas de proxy Squid
## Proxies SQUID:
Si lanzamos un escaneo en el puerto 80, indica que está **filtrado** y no cerrado:
### Método con FoxyProxy
Aquí está el sitio normal donde **no aparece nada**:
Creamos un nuevo proxy con la **IP de la máquina** y puerto **3128**:
Con **FoxyProxy**, aparece el contenido:
### Método en línea de comandos:
Enviamos con curl una solicitud al servidor web usando el proxy de la máquina a través del puerto **3128**:
Si solicita **autenticación**, hazlo de la siguiente manera:
## Reconocimiento de rutas (pasando por el proxy):
A veces, las **rutas solo aparecen** con el proxy, aquí tienes un ejemplo de cómo verlas:
```bash
gobuster dir -u http://192.168.71.131/ --proxy http://192.168.71.131:3128 -w /usr/share/SecLists/Discovery/Web-Content/directory-list-2.3-medium.txt -t 20
```
## Script de Python automatizado:
```python
#!/usr/bin/python3
import sys, signal, requests
def def_handler(sig, frame):
print("/n/n[!] Saliendo.../n")
sys.exit(1)
# Técnicas de proxy Squid
signal.signal(signal.SIGINT, def_handler)
main_url = "http://127.0.0.1"
squid_proxy = {'http': 'http://192.168.71.131:3128'}
def portDiscovery():
common_tcp_port= {21, 22, 23, 25, 53, 80, 110, 111, 135, 139, 143, 443, 445, 993, 995, 1723, 3306, 3389, 5900, 8080, 8443, 8888, 5900, 6666, 6667, 6668, 6669, 7000, 10000, 32768, 32769, 32770, 32771, 32772, 32773, 32774, 32775, 32776, 32777, 32778, 32779, 49152, 49153, 49154, 49155, 49156, 49157, 49158, 49159, 49160, 49161, 49162}
for tcp_port in common_tcp_port:
r = requests.get(main_url + ':' + str(tcp_port), proxies=squid_proxy)
if r.status_code != 503:
print("/n[+] Puerto " + str(tcp_port) + "- ABIERTO")
if __name__ == '__main__':
portDiscovery()
```
---
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