Ensure multicast routing is not in use

MédiaNível 2Automatizadaaix

Descrição

The mrouted daemon is an implementation of the multicast routing protocol. Unless a system is specifically set up to act as a network router, it is recommended that the mrouted daemon is disabled to reduce the potential attack surface. Audit: the mrouted start line in /etc/rc.tcpip must be commented out and the mrouted subsystem must not be active.

Como é verificado

Método de auditoria: Comando shell

shell

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

Saída esperada: compliant

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

Run the following script to stop and disable mrouted #!/usr/bin/ksh DAEMONS="mrouted" for l_daemon in $DAEMONS; do /usr/sbin/chrctcp -d $l_daemon /usr/bin/stopsrc -s $l_daemon done NOTE: mrouted is provided by bos.net.tcp.server_core so it is not possible to remove this fileset.

Propriedades

Sistemas operacionais: Qualquer
Tags: aixnetwork
Referência: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.2.7 Ensure multicast routing is not in use

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target aix --level 2