Denial of Service (DoS) Attacks
Denial of service (DoS) attacks using source address spoofing became
popular in 1997, using tools to send thousands of
packets to a target system.
A denial of service attack is characterised by attackers'
explicit attempts to prevent or delay legitimate users from using a service.
Examples include :
- attempts to flood a network,
thereby preventing or delaying legitimate network traffic,
- attempts to disrupt connections between two
machines, thereby preventing access to a service,
- attempts to prevent a particular individual
from accessing a service, and
- attempts to disrupt service to a specific system or person.
Often, the source address of these packets is spoofed,
making it difficult to locate the real source of the attack.
CITS3002 Computer Networks, Lecture 11, Security of TCP/IP, p11, 15th May 2024.
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CITS3002