Ensure System Accounts cannot access system using ftp.

Cómo se verifica

Método de auditoría: Revisión manual

Esta recomendación no se puede verificar automáticamente. Un escaneo la lista con estas instrucciones cuando se pasa --include-manual.

If ftp is active on the system, review the content of /etc/ftpusers and ensure there are no duplicate entries: cat /etc/ftpusers

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

List all users with a UID less than 200 to the /etc/ftpusers file: lsuser -c ALL | grep -v ^#name |grep -v root | cut -f1 -d: | while read NAME; do if [ `lsuser -f $NAME | grep id | cut -f2 -d=` -lt 200 ] > /dev/null 2>&1; then echo "Would add $NAME to /etc/ftpusers" fi done NOTE: Review the list of users Add all relevant users with a UID of less that 200 to the /etc/ftpusers file: lsuser -c ALL | grep -v ^#name |grep -v root | cut -f1 -d: | while read NAME; do if [ `lsuser -f $NAME | grep id | cut -f2 -d=` -lt 200 ] > /dev/null 2>&1; then echo $NAME >> /etc/ftpusers fi done