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The Trivial File Transfer Protocol (TFTP) server package must not be installed if not required for operational support.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215158 UBTU-16-030720 SV-215158r610931_rule High
Description
If TFTP is required for operational support (such as the transmission of router configurations) its use must be documented with the Information System Security Officer (ISSO), restricted to only authorized personnel, and have access control rules established.
STIG Date
Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide 2020-12-09

Details

Check Text ( C-16357r285342_chk )
Verify a Trivial File Transfer Protocol (TFTP) server has not been installed.

Check to see if a TFTP server has been installed with the following command:

# dpkg -l | grep -i tftpd
ii atftpd 0.7.git20120829-2.1

rc tftpd 0.17-18ubuntu2

rc tftpd-hpa 5.2+20150808-1ubuntu1.16.04.1

If a TFTP package is installed and the requirement for TFTP is not documented with the Information System Security Officer (ISSO), this is a finding.
Fix Text (F-16355r285343_fix)
Remove the Trivial File Transfer Protocol (TFTP) package from the system with the following command:

# sudo apt-get remove *tftpd*