hacktricks/network-services-pentesting/pentesting-ftp/ftp-bounce-attack.md

# FTP Bounce attack - Scan

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***

## FTP Bounce - Scanning

### Manuale

1. Connettersi all'FTP vulnerabile
2. Usare \*\*`PORT`\*\* o **`EPRT`** (ma solo uno di essi) per stabilire una connessione con il _\<IP:Port>_ che si desidera scansionare:

`PORT 172,32,80,80,0,8080`\
`EPRT |2|172.32.80.80|8080|`
3. Usare **`LIST`** (questo invierà semplicemente all'_\<IP:Port>_ connesso l'elenco dei file attuali nella cartella FTP) e controllare le possibili risposte: `150 File status okay` (Questo significa che la porta è aperta) o `425 No connection established` (Questo significa che la porta è chiusa)
1. Invece di `LIST`, si potrebbe anche usare **`RETR /file/in/ftp`** e cercare risposte simili `Open/Close`.

Esempio usando **PORT** (la porta 8080 di 172.32.80.80 è aperta e la porta 7777 è chiusa):

![](<../../.gitbook/assets/image (241).png>)

Stesso esempio usando **`EPRT`** (autenticazione omessa nell'immagine):

![](<../../.gitbook/assets/image (539).png>)

Porta aperta usando `EPRT` invece di `LIST` (ambiente diverso)

![](<../../.gitbook/assets/image (875).png>)

### **nmap**
```bash
nmap -b <name>:<pass>@<ftp_server> <victim>
nmap -Pn -v -p 21,80 -b ftp:ftp@10.2.1.5 127.0.0.1 #Scan ports 21,80 of the FTP
nmap -v -p 21,22,445,80,443 -b ftp:ftp@10.2.1.5 192.168.0.1/24 #Scan the internal network (of the FTP) ports 21,22,445,80,443
```
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