Ensure FTP Server is not enabled

MediumLevel 1Automatedros

Description

The File Transfer Protocol (FTP) provides networked computers with the ability to transfer files. The audit requires the FTP server unit(s) vsftpd not to be enabled or active (systemctl). Host-level control from the CIS ROS Melodic benchmark (Ubuntu 18.04 robot hosts); run as root.

How it is checked

Audit method: Shell command

shell

command -v systemctl >/dev/null 2>&1 || exit 1
bad=0
for u in vsftpd; do
  s=$(systemctl is-enabled "$u" 2>/dev/null)
  case "$s" in enabled|enabled-runtime|alias|indirect) echo "$u is $s"; bad=1 ;; esac
  systemctl is-active --quiet "$u" 2>/dev/null && { echo "$u is active"; bad=1; }
done
[ "$bad" -eq 0 ] && echo compliant

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Run the following command to disable vsftpd: # systemctl --now disable vsftpd

Properties

Operating systems: Any
Tags: rosros1melodicservices
Reference: CIS ROS Melodic Benchmark v1.0.0 - 2.2.9 Ensure FTP Server is not enabled

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target ros