yersinia: A framework for layer 2 attacks

Yersinia is a network tool designed to take advantage of some weaknesses in different network protocols. It pretends to be a solid framework for analyzing and testing the deployed networks and systems. Attacks for the following network protocols are implemented: Spanning Tree Protocol (STP), Cisco Discovery Protocol (CDP), Dynamic Trunking Protocol (DTP), Dynamic Host Configuration Protocol (DHCP), Hot Standby Router Protocol (HSRP), IEEE 802.1Q, IEEE 802.1X, Inter-Switch Link Protocol (ISL), VLAN Trunking Protocol (VTP.

Feature:

• DOS attack sending conf BPDUs
• DOS attack sending tcn BPDUs
• NONDOS attack Claiming Root Role
• ONDOS attack Claiming a non-root role
• DOS attack causing eternal root elections
• DOS Attack causing root dissapearance
• and more…

Installation

git clone https://github.com/tomac/yersinia.git

cd yersinia

./autogen.sh

./configure

make

make install

Tutorial

• CREATING A FAKE DHCP SERVER using YERSINIA
• DHCP Starvation: DOS ATTACKS TO THE DHCP SERVER

Source: https://github.com/tomac/yersinia