The ABC'S of 'Hacking' Part 2
Date Submitted: 09/21/2003 02:39:12
Category: / Science & Technology / Internet
Length: 5 pages (1457 words)
Category: / Science & Technology / Internet
Length: 5 pages (1457 words)
ARP Poisoning
Main Issues:
The Address Resolution Protocol's uses in detecting and rerouting traffic can cause havoc on a network where ARP's functionality is needed. ARP's capability of altering ARP tables at the switch makes it a prime target for hackers as point of entry in their attack. Because ARP works at both the network layer and the data link layer it can shutdown a network's data transfer with the outside world by confusing computers …
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…and the router therefore owning that material.
However, potentially dangerous ARP spoofing can be detected using programs like ARPWatch to monitor all ARP/IP address pairing and alert the administrator when changes occur. It listens to the network like a sniffer and compares all captured replies against a database.
The solution to avoid ARP attacks is to encrypt all data passing over a network, however the overhead associated with this method would cost too much.
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