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IT Baseline Protection Manual - The Information Warfare Site

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Threats Catalogue Deliberate Acts Remarks<br />

____________________________________________________________________ .........................................<br />

T 5.50 Abuse of the ICMP Protocol<br />

As a protocol of the transport level, the Internet Control Message Protocol<br />

(ICMP) has to transport error and diagnostic information. It may be abused in<br />

several ways. On the one hand, the routing tables of a computer may be<br />

changed by way of Redirect packets and undesirable routes may be<br />

configured. On the other hand an invader may smuggle falsified Destination<br />

Unreachable packets into the connection so that the existing connection is<br />

interrupted and the availability of the network connection is no longer given.<br />

____________________________________________________________________ .........................................<br />

<strong>IT</strong>-<strong>Baseline</strong> <strong>Protection</strong> <strong>Manual</strong>: Oktober 2000

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