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OL08-00-040350 - If the Trivial File Transfer Protocol (TFTP) server is required, the OL 8 TFTP daemon must be configured to operate in secure mode.

Information

Restricting TFTP to a specific directory prevents remote users from copying, transferring, or overwriting system files.

Solution

Configure the TFTP daemon to operate in secure mode with the following command:
$ sudo systemctl edit tftp.service

In the editor, enter:
[Service]
ExecStart=/usr/sbin/in.tftpd -s /var/lib/tftpboot

After making changes, reload the systemd daemon and restart the TFTP service as follows:
$ sudo systemctl daemon-reload
$ sudo systemctl restart tftp.service

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Oracle_Linux_8_V2R8_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-248902r1106146_rule, STIG-ID|OL08-00-040350, Vuln-ID|V-248902

Plugin: Unix

Control ID: 24db36ffdeade8607620b8cb445e5558ea4a895b703b3177c1662e6904eee246