# FTP Bounce attack - Scan
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## FTP Bounce - Scanning ### Manual 1. Connect to vulnerable FTP 2. Use \*\*`PORT`\*\*or **`EPRT`**(but only 1 of them) to make it establish a connection with the *\* you want to scan: `PORT 172,32,80,80,0,8080`\ `EPRT |2|172.32.80.80|8080|` 3. Use **`LIST`**(this will just send to the connected *\* the list of current files in the FTP folder) and check for the possible responses: `150 File status okay` (This means the port is open) or `425 No connection established` (This means the port is closed) 1. Instead of `LIST` you could also use **`RETR /file/in/ftp`** and look for similar `Open/Close` responses. Example Using **PORT** (port 8080 of 172.32.80.80 is open and port 7777 is closed): ![](https://github.com/nirugima/hacktricks/blob/main/.gitbook/assets/image%20\(225\).png) Same example using **`EPRT`**(authentication omitted in the image): ![](https://github.com/nirugima/hacktricks/blob/main/.gitbook/assets/image%20\(226\).png) Open port using `EPRT` instead of `LIST` (different env) ![](https://github.com/nirugima/hacktricks/blob/main/.gitbook/assets/image%20\(228\).png) ### **nmap** ```bash nmap -b :@ 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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