TMA-AIX-5.3.10
Ensure System Accounts cannot access system using ftp.
Descrição
If ftp is active on the system, the file /etc/ftpusers is a deny list used by ftp daemon containing a list of users who are not allowed to access the system via ftp. The /etc/ftpusers file contains a list of users who are not allowed to access the system via ftp. All users with a UID less than 200 should typically be added into the file.
Como é verificado
Método de auditoria: Revisão manual
Esta recomendação não pode ser verificada automaticamente. Uma varredura a lista com estas instruções quando você passa --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
Como é corrigido
Método de correção: Orientação ou patch de infraestrutura
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
Propriedades
- Sistemas operacionais
- Qualquer
- Tags
- aixaccounts
- Referência
- CIS IBM AIX 7 Benchmark v1.2.0 - 5.3.10 Ensure System Accounts cannot access system using ftp.