Linux distributions
TMA-ALINUX3-5.4.2.5
Ensure root path integrity
보통레벨 1자동linux
설명
The root user can execute any command on the system and could be fooled into executing programs unintentionally if the PATH is not set correctly.
점검 방법
감사 방식: 셸 명령
shell
alt0() { o=$(bash -c '#!/usr/bin/env bash
{
l_output2=""
l_pmask="0022"
l_maxperm="$( printf '"'"'%o'"'"' $(( 0777 & ~$l_pmask )) )"
l_root_path="$(sudo -Hiu root env | grep '"'"'^PATH'"'"' | cut -d= -f2)"
unset a_path_loc && IFS=":" read -ra a_path_loc <<< "$l_root_path"
grep -q "::" <<< "$l_root_path" && l_output2="$l_output2\n - root'"'"'s path contains a empty directory (::)"
grep -Pq ":\h*$" <<< "$l_root_path" && l_output2="$l_output2\n - root'"'"'s path contains a trailing (:)"
grep -Pq '"'"'(\h+|:)\.(:|\h*$)'"'"' <<< "$l_root_path" && l_output2="$l_output2\n - root'"'"'s path contains current working directory (.)"
while read -r l_path; do
if [ -d "$l_path" ]; then
while read -r l_fmode l_fown; do
[ "$l_fown" != "root" ] && l_output2="$l_output2\n - Directory: \"$l_path\" is owned by: \"$l_fown\" should be owned by \"root\""
[ $(( $l_fmode & $l_pmask )) -gt 0 ] && l_output2="$l_output2\n - Directory: \"$l_path\" is mode: \"$l_fmode\" and should be mode: \"$l_maxperm\" or more restrictive"
done <<< "$(stat -Lc '"'"'%#a %U'"'"' "$l_path")"
else
l_output2="$l_output2\n - \"$l_path\" is not a directory"
fi
done <<< "$(printf "%s\n" "${a_path_loc[@]}")"
if [ -z "$l_output2" ]; then
echo -e "\n- Audit Result:\n *** PASS ***\n - Root'"'"'s path is correctly configured\n"
else
echo -e "\n- Audit Result:\n ** FAIL **\n - * Reasons for audit failure * :\n$l_output2\n"
fi
}' 2>&1); printf '%s\n' "$o" | grep -q '\*\* PASS \*\*' || { echo "step1: script did not report PASS"; return 1; }; }; if alt0; then echo compliant; fi- 예상 출력
compliant
조치 방법
조치 방식: 가이드 또는 인프라 패치
Correct or justify any: • Locations that are not directories • Empty directories (::) • Trailing (:) • Current working directory (.) • Non root owned directories • Directories that less restrictive than mode 0755
속성
- 운영 체제
- alinux-3
- 태그
- cis-convertedlinux
- 참고 자료
- CIS Alibaba Cloud Linux 3 Benchmark v2.0.0 - 5.4.2.5
이 호스트 점검하기
감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.
shell
tmaegis scan --target linux