Ensure dhcp client services are not in use

СредњаНиво 1Аутоматскаaix

Опис

The dhcpcd and dhcpcd6 daemons receive address and configuration information from the DHCP server for IPv4 and IPv6 respectively. Unless a system is specifically expected to receive IP address and configuration via DHCP, it is recommended that the dhcp client fileset be removed to reduce the potential attack surface. Audit: the dhcpcd start line in /etc/rc.tcpip must be commented out and the dhcpcd subsystem must not be active.

Како се проверава

Метод провере: Команда љуске

shell

command -v lssrc >/dev/null 2>&1 || exit 1; [ -r /etc/rc.tcpip ] || exit 1; out=$( { grep -E "^[[:blank:]]*start[[:blank:]]+/usr/(sbin|lib)/dhcpcd([[:blank:]]|$)" /etc/rc.tcpip; lssrc -s dhcpcd | awk 'NR>1 && $NF=="active"' ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Очекивани излаз: compliant

Како се исправља

Метод исправке: Смерница или закрпа инфраструктуре

Run the following command to remove the software: # /usr/sbin/installp -u bos.net.tcp.dhcp bos.net.tcp.client - OR - - IF - the bos.net.tcp.dhcp fileset is required as a dependency: Run the following script to stop and disable dhcpcd and dhcpcd6 #!/usr/bin/ksh DAEMONS="dhcpcd dhcpcd6" for l_daemon in $DAEMONS; do /usr/sbin/chrctcp -d $l_daemon /usr/bin/stopsrc -s $l_daemon done

Својства

Оперативни системи: Било који
Ознаке: aixnetwork
Референца: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.2.2 Ensure dhcp client services are not in use

Проверите овај рачунар

Покрените ово на рачунару за који имате дозволу за проверу. Скенирање ради у режиму само за читање.

shell

tmaegis scan --target aix