Voiphopper How To

This is a small howto on installing voiphopper version 0.9.7

"VoIP Hopper is the answer to all voip solution providers who make people believe that VLANS is all you need to secure VoIP" - Sachin Joglekar, Sipera VIPER Lab

"VoIP Hopper is a GPLv3 licensed security tool, written in C, that rapidly runs a VLAN Hop into the Voice VLAN on specific Ethernet switches. VoIP Hopper does this by mimicking the behavior of an IP Phone, in both Cisco and Avaya IP Phone environments."

(SOURCE = Voiphopper readme.txt )

This tool was released at shmoocon this past weekend.

voiphopper

Download and save( I saved mine to "/root") Then use:

Code:

bt ~# tar xvfz voiphopper-0.9.7.tar.gz

This will "untar" and "ungzip" the package.

Code:

bt ~ # tar xvfz voiphopper-0.9.7.tar.gz
voiphopper-0.9.7/
voiphopper-0.9.7/Makefile
voiphopper-0.9.7/arp.c
voiphopper-0.9.7/buildmsg.c
voiphopper-0.9.7/cache.c
voiphopper-0.9.7/client.c
voiphopper-0.9.7/dhcpconfig.c
voiphopper-0.9.7/mac.c
voiphopper-0.9.7/netinfo.c
voiphopper-0.9.7/peekfd.c
voiphopper-0.9.7/signals.c
voiphopper-0.9.7/udpipgen.c
voiphopper-0.9.7/voiphopper.c
voiphopper-0.9.7/buildmsg.h
voiphopper-0.9.7/client.h
voiphopper-0.9.7/dhcpcd.h
voiphopper-0.9.7/kversion.h
voiphopper-0.9.7/mac.h
voiphopper-0.9.7/maclist.h
voiphopper-0.9.7/netinfo.h
voiphopper-0.9.7/pathnames.h
voiphopper-0.9.7/signals.h
voiphopper-0.9.7/udpipgen.h
voiphopper-0.9.7/LICENSE
voiphopper-0.9.7/README

Next "cd" to the directory where you saved it

Code:

bt ~# cd/root/voiphopper-0.9.7 #

and then use "make" to install it

Code:

 bt ~# cd/root/voiphopper-0.9.7 # make

You should see the following as the output

Code:

INSTALLATION
bt  voiphopper-0.9.7 # make
gcc -c voiphopper.c
gcc -c dhcpconfig.c
gcc -c buildmsg.c
gcc -c cache.c
gcc -c udpipgen.c
gcc -c peekfd.c
gcc -c client.c
gcc -c arp.c
gcc -c signals.c
gcc -c mac.c
gcc -c netinfo.c
gcc voiphopper.o dhcpconfig.o buildmsg.o cache.o udpipgen.o peekfd.o client.o arp.o signals.o mac.o netinfo.o -lpcap -o voiphopper
bt voiphopper-0.9.7 #

Usage looks like the following:

1. To sniff for CDP and run a VLAN Hop into the Voice VLAN, simply run VoIP Hopper on the Ethernet interface, in the following way:

Code:

voiphopper -i eth1

2. VoIP Hopper also allows one to VLAN Hop to an arbitrary VLAN, without sniffing for CDP. If you already know the Voice VLAN ID, or would like to VLAN Hop into another VLAN (without sniffing for CDP), you can run it in the following way:

Code:

voiphopper -i eth1 -v 200

3. To Discover the Voice VLAN in an Avaya IP Phone environment:

Code:

voiphopper -i eth1 -a

4. To spoof the MAC Address of an IP Phone by sniffing for CDP (this changes the MAC address of default interface and new interface):

Code:

voiphopper -i eth1 -m AA:AA:AA:AA:AA:AA

5. To spoof the MAC Address of an IP Phone using an Avaya DHCP request (this changes the MAC address of default interface and new interface) :

Code:

voiphopper -i eth1 -a -m AA:AA:AA:AA:AA:AA

6. To spoof the MAC Address of an IP Phone by VLAN Hopping without CDP or DHCP (this changes the MAC address of default interface and new interface):

Code:

voiphopper -i eth1 -v 200 -m AA:AA:AA:AA:AA:AA

7. To spoof the MAC Address of an IP Phone without changing the MAC Address of the default ethernet interface (only spoof the new voice interface's MAC Address):

Code:

voiphopper -i eth1 -v 200 -m AA:AA:AA:AA:AA:AA -D

(SOURCE = Voiphopper readme.txt )

Well I hope that helps you get started
Have fun and play nice
This tutorial is not all of my own work credits to:
AUTHOR
Jason Ostrom
And the other Developers.