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The tftp daemon must be disabled on AIX.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215386 AIX7-00-003081 SV-215386r508663_rule Medium
Description
The tftp service allows remote systems to download or upload files to the tftp server without any authentication. It is therefore a service that should not run, unless needed. One of the main reasons for requiring this service to be activated is if the host is a NIM master. However, the service can be enabled and then disabled once a NIM operation has completed, rather than left running permanently.
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2023-08-23

Details

Check Text ( C-16584r294609_chk )
From the command prompt, execute the following command:
# grep "^tftp[[:blank:]]" /etc/inetd.conf

If there is any output from the command, this is a finding.
Fix Text (F-16582r294610_fix)
In "/etc/inetd.conf", comment out the "tftp" entry by running command:
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'tftp' -p 'udp'

Restart inetd:
# refresh -s inetd