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All Interactive Users Home Directories Must Exist

An XCCDF Rule

Description

Create home directories to all local interactive users that currently do not have a home directory assigned. Use the following commands to create the user home directory assigned in /etc/passwd: 

$ sudo mkdir /home/USER

Rationale

If a local interactive user has a home directory defined that does not exist, the user may be given access to the / directory as the current working directory upon logon. This could create a Denial of Service because the user would not be able to access their logon configuration files, and it may give them visibility to system files they normally would not be able to access.

ID
xccdf_org.ssgproject.content_rule_accounts_user_interactive_home_directory_exists
Severity
Medium
References
Updated



Remediation - Ansible

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

Remediation - Shell Script


for user in $(awk -F':' '{ if ($3 >= 1000 && $3 != 65534) print $1}' /etc/passwd); do
    mkhomedir_helper $user 0077;
done