TOSS 5 /etc/crontab file must have mode 0600.

Service configuration files enable or disable features of their respective services that if configured incorrectly can lead to insecure and vulnerable configurations; therefore, service configuration files must have the correct access rights to prevent unauthorized changes.

Verify the permissions of /etc/crontab using the following command:

$ stat -c "%a %n" /etc/crontab

0600

If /etc/crontab does not have a mode of "0600", this is a finding.

Configure the TOSS 5 file /etc/crontab with mode "600".

$ sudo chmod 0600 /etc/crontab