152 Managing Network Vulnerability Assessment
OS: Linux
Vendor’s comments: WEPCrack is an open source tool for breaking 802.11
WEP secret keys. This tool is an implementation of the attack described
by Fluhrer, Mantin, and Shamir in their article “Weaknesses in the Key
Scheduling Algorithm of RC4” at http://www.eyetap.org/~rguerra/
toronto2001/rc4_ksaproc.pdf.
Air Snort
URL: http://airsnort.shmoo.com/
Price: Free
OS: Linux
Network Sniffers
These products monitor network segments for traffic. There is a discussion of
network sniffing in the “Site Survey” section.
Ethereal for Linux or Windows
URL: http://www.ethereal.com
Price: Free
Vendor’s comments: Ethereal is a free network protocol analyzer for UNIX
and Windows. It allows you to examine data from a live network or
from a capture file on disk. You can interactively browse the capture
data, viewing summary and detail information for each packet. Ethereal
has several powerful features, including a rich display filter language
and the ability to view the reconstructed stream of a TCP session.
Opinion: A tremendous product for free.
Iris
URL: http://www.eeye.com
Price: $$
OS: NT
Opinion: A very capable network sniffer with lots of bells and whistles,
Iris does a very good job decoding and breaking down the packet
information.
Sniffer Pro
URL: http://www.nai.com
Price: $$
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