Repo for my Python script used to perform a DHCP Starvation attack by flooding the DHCP Server with bogus DHCPDISCOVER messages. The desired effect is to deplete the DHCP pool configured on the server, preventing other hosts from receiving configuration from the server.

Also included is the dhcplistener.py script, used to detect DHCP Attacks by sniffing DHCP packets.

Written as part of my Engineering Thesis about analysis of DHCP Attacks, and possible detection and preventative measures. Version used in said thesis is at commit #9.

This script was written and is to be used for education and testing purposes only. Running this script WILL disrupt your network due to connected hosts not being able to obrain IP leases. This script must not be run on anything other than authorized networks, to which you have the right to perform such test (preferrably your own). I am not responsible for any consequences of user actions, e.g. disciplinary, criminal or network disruption. Use of this script indicates you acknowledge this warning and accept full responsibility.

Usage: dhcpstarver.py [-h] [-f] [-t TIME] [-s IP] [-l FILE] iface

Positional arguments:
  iface                 Used network interface

Options:
  -h, --help            show this help message and exit
  -f, --full            Complete DORA by replying to DHCPOFFER messages with DHCPREQUEST
  -t TIME, --time TIME  Time between DHCPDISCOVER messages. Default - 0.001s
  -s IP, --server IP    Target IP of DHCP Server. Default - Broadcast
  -l FILE, --log FILE   Enable logging to a text file

Usage: dhcplistener.py [-h] [-m MAX] [-l FILE] iface

Positional arguments:
  iface                Used network interface

Options:
  -h, --help           show this help message and exit
  -m MAX, --max MAX    Max ammount of DHCPDISCOVER messages per second. Default - 15
  -l FILE, --log FILE  Enable logging to a text file

• add GUI to dhcpstarver
• add GUI to dhcplistener
• combine both scripts into single app
• package the scripts into executable