TMA-AIX-4.3.2.12

Ensure sendmail is not in use

보통레벨 1자동aix

설명

The sendmail daemon means that the system can operate as a mail server. sendmail is a service with many historical vulnerabilities and where possible should be disabled. Unless a system is specifically designated to act as a mail server, it is recommended that the sendmail fileset be removed to reduce the potential attack surface. Audit: the sendmail start line in /etc/rc.tcpip must be commented out and the sendmail subsystem must not be active.

점검 방법

감사 방식: 셸 명령

shell

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

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

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

속성

운영 체제: 모두
태그: aixservices
참고 자료: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.2.12 Ensure sendmail is not in use

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target aix