TMA-AIX-4.3.2.4
Ensure dhcp server services are not in use
Descripción
The dhcpsd deamon is the DHCP server that serves addresses and configuration information to DHCP clients in the network. Unless a system is specifically set up to act as a DHCP server, it is recommended that the dhcpd fileset be removed to reduce the potential attack surface. Audit: the dhcpsd start line in /etc/rc.tcpip must be commented out and the dhcpsd subsystem must not be active.
Cómo se verifica
Método de auditoría: Comando de shell
command -v lssrc >/dev/null 2>&1 || exit 1; [ -r /etc/rc.tcpip ] || exit 1; out=$( { grep -E "^[[:blank:]]*start[[:blank:]]+/usr/(sbin|lib)/dhcpsd([[:blank:]]|$)" /etc/rc.tcpip; lssrc -s dhcpsd | awk 'NR>1 && $NF=="active"' ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20- Salida esperada
compliant
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
Run the following command to remove the software: # /usr/sbin/installp -u bos.net.tcp.dhcpd bos.net.tcp.server - OR - - IF - the bos.net.tcp.dhcpd fileset is required as a dependency: Run the following script to stop and disable dhcpsd #!/usr/bin/ksh DAEMONS="dhcpsd" for l_daemon in $DAEMONS; do /usr/sbin/chrctcp -d $l_daemon /usr/bin/stopsrc -s $l_daemon done
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- aixnetwork
- Referencia
- CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.2.4 Ensure dhcp server services are not in use
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
tmaegis scan --target aix