> 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/pt-br/web-vulnerabilities/proxys-squid-attack/proxys-squid-techniques-pentesting-web.md).
# Técnicas de Proxy Squid
## Proxies SQUID:
Se fizermos uma varredura na porta 80, isso indica que ela está **filtrada** e não fechada:
### Método com um FoxyProxy
Aqui está o site normal onde **nada aparece**:
Nós criamos um novo proxy com o **IP da máquina** e porta **3128**:
Com **FoxyProxy**, o conteúdo aparece:
### Método na linha de comando:
Enviamos com curl uma requisição ao servidor web usando o proxy da máquina pela porta **3128**:
Se pedir **autenticação**, faça da seguinte forma:
## Reconhecimento de caminhos (passando pelo proxy):
Às vezes, os **caminhos só aparecem** com o proxy, aqui está um exemplo de como vê-los:
```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 Python automatizado:
```python
#!/usr/bin/python3
import sys, signal, requests
def def_handler(sig, frame):
print("/n/n[!] Exiting.../n")
sys.exit(1)
# Técnicas de Proxy do 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[+] Porta " + str(tcp_port) + " - ABERTA")
if __name__ == '__main__':
portDiscovery()
```
---
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