RHEL 9 must not have a Trivial File Transfer Protocol (TFTP) server package installed.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
highV-257835SRG-OS-000480-GPOS-00227RHEL-09-215060SV-257835r1069368_rule2025-02-272
Description
Removing the "tftp-server" package decreases the risk of the accidental (or intentional) activation of tftp services. If TFTP is required for operational support (such as transmission of router configurations), its use must be documented with the information systems security manager (ISSM), restricted to only authorized personnel, and have access control rules established.
ℹ️ Check
Verify that RHEL 9 does not have a "tftp-server" package installed with the following command: $ dnf list --installed tftp-server Error: No matching Packages to list If the "tftp-server" package is installed, this is a finding.
✔️ Fix
The "tftp-server" package can be removed with the following command: $ sudo dnf remove tftp-server