Ensure dhcp server services are not in use

中等級 1自動化aix

說明

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.

檢查方式

稽核方法: Shell 指令

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

預期輸出: compliant

修補方式

修補方法: 操作指南或基礎設施修補檔

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

屬性

作業系統: 不限
標籤: aixnetwork
參考資料: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.2.4 Ensure dhcp server services are not in use

檢查此主機

請在您有權稽核的機器上執行此指令。掃描為唯讀操作。

shell

tmaegis scan --target aix