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Yersinia Yersinia is a tool for performing layer 2 attacks, helping the pen-tester in his daily work checking the robustness of layer 2 protocols configuration. Yersinia can manipulate layer 2 network protocol and allow an attacker foil switches by injecting spurious Spanning Tree Protocol, DHCP, VLAN Trunking protocol and other messages into a network.
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Yersinia
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