Tag Archive for 'Citrix XenServer'

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DEF CON 24 DEMO: Double Tagging VLAN Hopping Attack Between Two Virtual Networks With a Cisco 2950 Switch in the Middle

This post demonstrates the effects of using a double tagging vlan hopping attack to send an ICMP packet from a virtual machine located in one hypervisor environment to another virtual machine located in a separate hypervisor environment connected to the same physical switch. In this scenario the attacker is using a virtual Kali 2.0 system […]

DefCon 23 Presentation: Exploring Layer 2 Network Security in Virtualized Environments

DefCon 23 Video Demo: MAC Flooding on Citrix XenServer 6.2 with Open vSwitch 1.4.6