Ensure telnet server services are not in use

높음레벨 1자동freebsd

설명

The freebsd-telnetd package contains the telnet daemon, which accepts connections from users from other systems via the telnet protocol. The telnet protocol is insecure and unencrypted. The use of an unencrypted transmission medium could allow a user with access to sniff network traffic the ability to steal credentials. The ssh service provides an encrypted session and stronger security. Audit: telnet must not be enabled in /etc/inetd.conf (or freebsd-telnetd is not installed).

점검 방법

감사 방식: 셸 명령

shell

command -v grep >/dev/null 2>&1 || exit 1; out=$( { grep -E "^telnet[[:space:]]" /etc/inetd.conf ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

Run the following commands to stop and disable telnet: # sed -i '' -e 's|^telnet|#telnet|g' /etc/inetd.conf # service inetd restart -AND- -IF- a package is installed and is required for dependencies: Run the following commands to remove the freebsd-telnetd package: # pkg remove freebsd-telnetd

속성

운영 체제: 모두
태그: freebsdnetwork
참고 자료: CIS FreeBSD 14 Benchmark v1.0.1 - 2.2.8 Ensure telnet server services are not in use

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target freebsd