Ensure no duplicate group names exist

中级别 1自动化linux

说明

Although the groupadd program will not let you create a duplicate group name, it is possible for an administrator to manually edit the /etc/group file and change the group name.

检查方式

审计方法: Shell 命令

shell

alt0() { o=$(bash -c '#!/usr/bin/env bash

{
   while read -r l_count l_group; do
      if [ "$l_count" -gt 1 ]; then
         echo -e "Duplicate Group: \"$l_group\" Groups: \"$(awk -F: '"'"'($1 == n) { print $1 }'"'"' n=$l_group /etc/group | xargs)\""
      fi
   done < <(cut -f1 -d":" /etc/group | sort -n | uniq -c)
}' 2>&1); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi

预期输出: compliant

修复方式

修复方法: 操作指南或基础设施补丁

Based on the Audit Procedure output, for each duplicated group name, determine which entry is correct and make each group name unique. Use vigr to safely edit the group database and either remove the redundant entry or rename it to a unique group name: # vigr File group ownerships will reflect the change automatically as long as each group has a unique GID.

属性

操作系统: almalinux-9
标签: cis-convertedlinux
参考: CIS AlmaLinux OS 9 Benchmark v3.0.0 - 7.2.7

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target linux