May 2018
Beginner
230 pages
4h 49m
English
Content preview from Python Penetration Testing Essentials - Second Edition
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The MAC flooding attack
MAC flooding entails flooding the switch with a large number of requests. Content Addressable Memory (CAM) separates a switch from a hub. It stores information, such as the MAC address of the connected devices with the physical port number. Every MAC in a CAM table is assigned a switch port number. With this information, the switch knows where to send Ethernet frames. The size of the CAM tables is fixed. You might wonder what happens when the CAM tables get a large number of requests. In such a case, the switch turns into a hub, and the incoming frames are flooded out on all ports, giving the attacker access to network communication.
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