Details

The Dynamic Host Configuration Protocol (DHCP) is a service that allows machines to be dynamically assigned IP addresses.

Rationale:

Unless a system is specifically set up to act as a DHCP server, it is recommended that this service be disabled to reduce the potential attack surface.

Solution

Run the following command to disable dhcpd :

# systemctl disable dhcpd
# systemctl stop dhcpd

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/2449

This security hardening control applies to the following category of controls within NIST 800-53: System and Information Integrity.This control applies to the following type of system Unix.

References

• 800-53|SI-4
• CSCv6|9.1
• CSCv7|9.2

Source

• Tenable.com/audits