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All Interactive Users Must Have A Home Directory Defined

An XCCDF Rule

Description

Assign home directories to all interactive users that currently do not have a home directory assigned. This rule checks if the home directory is properly defined in a folder which has at least one parent folder, like "user" in "/home/user" or "/remote/users/user". Therefore, this rule will report a finding for home directories like /users, /tmp or /.

Rationale

If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files they should own.

ID
xccdf_org.ssgproject.content_rule_accounts_user_interactive_home_directory_defined
Severity
Medium
References
Updated



Remediation - Ansible

- name: Get all local users from /etc/passwd
  ansible.builtin.getent:
    database: passwd
    split: ':'
  tags:
  - CCE-83075-2

Remediation - Shell Script


for user in $(awk -F':' '{ if ($3 >= 1000 && $3 != 65534) print $1 }' /etc/passwd); do
    # This follows the same logic of evaluation of home directories as used in OVAL.
    if ! grep -q $user /etc/passwd | cut -d: -f6 | grep '^\/\w*\/\w\{1,\}'; then
        sed -i "s/\($user:x:[0-9]*:[0-9]*:.*:\).*\(:.*\)$/\1\/home\/$user\2/g" /etc/passwd;
    fi