Summary

Denial of service has adapted and developed over the last decade from simple malformed packets and taking advantage of programming errors in network stacks to sophisticated distributed attacks against specific application functionality. DoS can be caused by script kiddies who are just out to have fun, people out to make a statement, or blackmailers who want money to go away. The most common and dangerous attack is the distributed denial-of-service attack and the worms/viruses that provide the vector for executing these attacks. Large sites like Microsoft and Google have been targeted and affected by these attacks, demonstrating that no site is invulnerable or immune to the spread of such attacks.

With more money flowing through e-commerce and site availability becoming critical to online businesses, the financial impact and incentive for attack have grown exponentially. We have seen that there is no magic-bullet defense to a DoS attack. Economics make it impossible to handle any sized attack. Rather, smart design, careful implementation, and proper testing and planning are critical to addressing the threat. Site administrators need to be ever-vigilant and ready to respond when an attack occurs and must be prepared with a playbook to execute.



Hacking Exposed Web Applications
HACKING EXPOSED WEB APPLICATIONS, 3rd Edition
ISBN: 0071740643
EAN: 2147483647
Year: 2006
Pages: 127

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