Verify Group Who Owns Backup group File

An XCCDF Rule

Description

To properly set the group owner of /etc/group-, run the command:

$ sudo chgrp root /etc/group-

Rationale

The /etc/group- file is a backup file of /etc/group, and as such, it contains information regarding groups that are configured on the system. Protection of this file is important for system security.

ID: xccdf_org.ssgproject.content_rule_file_groupowner_backup_etc_group
Severity: Medium
References: CCI-002223

AC-6 (1)

Req-8.7

SRG-OS-000480-GPOS-00227

CCE-83475-4

2.2.6

6.1.5
Updated: about 1 year ago

- name: Test for existence /etc/group-
  stat:
    path: /etc/group-
  register: file_exists
  tags:
  - CCE-83475-4  - NIST-800-53-AC-6 (1)
  - PCI-DSS-Req-8.7
  - PCI-DSSv4-2.2.6
  - configure_strategy
  - file_groupowner_backup_etc_group
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed

- name: Ensure group owner 0 on /etc/group-
  file:
    path: /etc/group-
    group: '0'
  when: file_exists.stat is defined and file_exists.stat.exists
  tags:
  - CCE-83475-4
  - NIST-800-53-AC-6 (1)
  - PCI-DSS-Req-8.7
  - PCI-DSSv4-2.2.6
  - configure_strategy
  - file_groupowner_backup_etc_group
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed

chgrp 0 /etc/group-

Verify Group Who Owns Backup group File

Description

Rationale

Remediation - Ansible

Remediation - Shell Script