Title

The Trivial File Transfer Protocol (TFTP) server package must not be installed if not required for RHEL 8 operational support. (Cat I impact)

Discussion

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.

Check Content

Verify a TFTP server has not been installed on the system with the following command: $ sudo yum list installed tftp-server tftp-server.x86_64 5.2-24.el8 If TFTP is installed and the requirement for TFTP is not documented with the ISSO, this is a finding.

Fix Text

Remove the TFTP package from the system with the following command: $ sudo yum remove tftp-server

Additional Identifiers

Rule ID: SV-230533r1017295_rule

Vulnerability ID: V-230533

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.