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    Intrusion with DNS Messages

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    Suppose that an intruder could both insert and remove DNS messages into the network. Give three scenarios showing the problems that such an intruder could cause.

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    Intrusion into a computer system on a network is the act of gaining unauthorized access to misuse information. Intrusions can be conducted in many ways and one such way is by inserting and removing DNS messages into a network. Malicious users exploit the sections of a message that determine how it will be processed by the receiving device. Message sections contain the Header, Question, Answer, Authority, and Additional fields. Some of these fields may be empty during a DNS message transmission. These empty fields or sections are the ones an intruder would generally make use of to insert/remove DNS messages. Various multiple malicious incidents can happen; some of them explained herewith:

    1. DNS Cache Poisoning

    Also known as the denial of service (DoS) ...

    Solution Summary

    The solution discusses scenarios how an intruder could insert and delete DNS messages into a network.