Ensure no users have .rhosts files

낮음레벨 2수동 검토cos

설명

While no .rhosts files are shipped by default, users can easily create them. This action is only meaningful if .rhosts support is permitted in the file /etc/pam.conf . Even though the .rhosts files are ineffective if support is disabled in /etc/pam.conf , they may have been brought over from other systems and could contain information useful to an attacker for those other systems.

점검 방법

감사 방식: 수동 검토

이 권장 사항은 자동으로 점검할 수 없습니다. --include-manual 옵션을 전달하면 스캔 결과에 이 지침과 함께 표시됩니다.

Run the following script and verify no results are returned: #!/bin/bash grep -E -v '^(root|system-halt|sync|system-shutdown)' /etc/passwd | awk -F: '($7 != "'"$(which nologin)"'" && $7 != "/bin/false") { print $1 " " $6 }' | while read user dir; do if [ ! -d "$dir" ]; then echo "The home directory ($dir) of user $user does not exist." else for file in $dir/.rhosts; do if [ ! -h "$file" -a -f "$file" ]; then echo ".rhosts file in $dir" fi done fi done

조치 방법

조치 방식: 가이드 또는 인프라 패치

Making global modifications to users' files without alerting the user community can result in unexpected outages and unhappy users. Therefore, it is recommended that a monitoring policy be established to report user .rhosts files and determine the action to be taken in accordance with site policy.

속성

운영 체제: 모두
태그: container-optimized-oscos
참고 자료: CIS Google Container-Optimized OS Benchmark v1.2.0 - 6.2.14 Ensure no users have .rhosts files