TMA-AIX-4.3.2.3

Ensure dhcp relay services are not in use

中レベル 1自動aix

説明

The dhcprd daemon listens for broadcast packets, receives them, and forwards them to the appropriate DHCP or BOOTP server. Unless a system is specifically set up to act as a DHCP relay server, it is recommended that the dhcpd fileset be removed to reduce the potential attack surface. Audit: the dhcprd start line in /etc/rc.tcpip must be commented out and the dhcprd subsystem must not be active.

チェック方法

監査方法: シェルコマンド

shell

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

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

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 dhcprd #!/usr/bin/ksh DAEMONS="dhcprd" for l_daemon in $DAEMONS; do /usr/sbin/chrctcp -d $l_daemon /usr/bin/stopsrc -s $l_daemon done

プロパティ

オペレーティングシステム: すべて
タグ: aixnetwork
参照: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.2.3 Ensure dhcp relay services are not in use

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target aix