Port 21 Non-FTP Traffic Detection

Info Nessus Network Monitor Plugin ID 8078

Synopsis

The remote client appears to be tunneling data over port 21 TCP (FTP)

Description

The remote host is running non-FTP traffic over port 21. Port 21 is a port that is typically allowed outbound access via a firewall. Because of this, some users may attempt to pass non-FTP traffic over port 21.

Solution

Ensure that this application is authorized for your network

Plugin Details

Severity: Info

ID: 8078

File Name: 8078.prm

Family: Policy

Published: 2014/01/03

Modified: 2015/06/01

Risk Information

Risk Factor: Info