Restrict FTP Use

Kako se proverava

Metod provere: Komanda ljuske

command -v logins >/dev/null 2>&1 || exit 1; out=$( { for user in $(logins -s | awk '{ print $1 }') aiuser noaccess nobody nobody4; do grep -w "$user" /etc/ftpd/ftpusers >/dev/null 2>&1 || echo "User $user not in /etc/ftpd/ftpusers."; done ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Očekivani izlaz

compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Perform the following to implement the recommended state: # cd /etc/ftpd # cp ftpusers ftpusers.orig # for user in `logins -s | awk '{ print $1 }'` aiuser noaccess nobody nobody4; do $(echo $user >> ftpusers) done # sort -u ftpusers > ftpusers.CIS # mv ftpusers.CIS ftpusers If your site policy states that users have to be authorized to use FTP, consider placing all users in the /etc/ftpd/ftpusers file and then explicitly removing those who are permitted to use the service. To accomplish this, use the command: # getent passwd | cut -f1 -d":" > /etc/ftpd/ftpusers This prohibits any user on the system from using ftp unless they are explicitly removed from the file. Note that this file will need to be updated as users are added to or removed from the system.

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

tmaegis scan --target solaris