July 2017
Beginner to intermediate
358 pages
10h 54m
English
A UDP flood attack works by sending a flood of UDP packets with a spoofed source address to an IP address. The server will respond to these requests, sending a reply to the spoofed addresses. Due to the high volume of the attack, a router will exceed its limit of UDP datagrams per second and stop sending to all addresses in the same security zone for a period.
This also often utilizes a technique called a reflected attack. When the IP address for the source is spoofed, the return packets are not sent back to the real source, but to the spoofed IP address. The reason this technique is used is that it allows the sender to amplify an attack by only expending resources on the outbound packets.
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