Uninstall DHCP Server Package
Description
If the system does not need to act as a DHCP server,
the dhcp package can be uninstalled.
The isc-dhcp-server package can be removed with the following command:
$ apt-get remove isc-dhcp-server
Rationale
Removing the DHCP server ensures that it cannot be easily or
accidentally reactivated and disrupt network operation.
Shell script
The following script can be run on the host to remediate the issue.
#!/bin/bash
# CAUTION: This remediation script will remove isc-dhcp-server
# from the system, and may remove any packages
# that depend on isc-dhcp-server. Execute this
# remediation AFTER testing on a non-production
# system!
DEBIAN_FRONTEND=noninteractive apt-get remove -y "isc-dhcp-server"
Ansible playbook
The following playbook can be run with Ansible to remediate the issue.
- name: Ensure isc-dhcp-server is removed
package:
name: isc-dhcp-server
state: absent
tags:
- NIST-800-53-CM-6(a)
- NIST-800-53-CM-7(a)
- NIST-800-53-CM-7(b)
- PCI-DSSv4-2.2.4
- disable_strategy
- low_complexity
- low_disruption
- medium_severity
- no_reboot_needed
- package_dhcp_removed
