Ensure password reuse is limited

높음레벨 2자동cos

설명

The /etc/security/opasswd file stores the users' old passwords and can be checked to ensure that users are not recycling recent passwords. Forcing users not to reuse their past 5 passwords make it less likely that an attacker will be able to guess the password. Note that these change only apply to accounts configured on the local system.

점검 방법

감사 방식: 셸 명령

shell

bad=0; for p in /etc/pam.d/system-password /etc/pam.d/system-auth; do grep -Pq "^\h*password\h+[^#\n\r]+\h+pam_pwhistory\.so\h+([^#\n\r]+\h+)?remember=([5-9]|[1-9][0-9]+)\b" $p 2>/dev/null || bad=1; done; [ $bad -eq 0 ] && echo compliant || echo noncompliant

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

Set remembered password history to conform to site policy. Many distributions provide tools for updating PAM configuration, consult your documentation for details. If no tooling is provided edit the appropriate /etc/pam.d/ configuration file and add or modify the pam_pwhistory.so or pam_unix.so lines to include the remember option: password required pam_pwhistory.so remember=5 password required pam_unix.so remember=5

속성

운영 체제: 모두
태그: authcontainer-optimized-oscos
참고 자료: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.2.2 Ensure password reuse is limited

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target cos --level 2