In the news...
- Policy analysis: Byte
editorial on the new amazon.com privacy policy. Bottom line: the
new policy doesn't guarantee as much privacy as the old policy.
- The Cue
Cat, a bar code scanner with important privacy considerations
Today: sniffers and port scanners
- Background:
- Data transmitted on a network are subject to interception,
monitoring or change.
- Physical access (e.g., to an Ethernet circuit) can make
it nearly impossible to prevent mis-use.
- Available and active IP addresses are searchable either
via the DNS or brute force searching.
- Determining the type of host and what vulnerabilities might
exist with some precision is trivial.
- So, a network administrator needs to be concerned about possible
mis-use of network protocols, interception of network data, and
other potential problems.
Finding the software
- Remember: there is an active community of hackers who develop
new software for intrusion or intrusion prevenvion & detection. You
need to work hard to keep up with changes!
- Try rootshell.com for a collection
of hacker's tools and administration software. The site is evidently no longer
actively maintained, but still has an outsanding collection of software. As
with most hacker's tools, be prepared to get into the source code to get
things to work.
- At SecurityFocus,
there is a collection of software with more of an emphasis on
protection and administration than infiltration. But they have both,
and quite a bit of analysis, news updates and mailing list archives as
well.
Some samples, on blue.ils.unc.edu
- Mscan
(link is to the code at SecurityFocus.com): General purpose tool for
identifying IP addresses in subnets and probing for known
vulnerabilities. Can very quickly investigate many computers and
generate a list of potential vulnerabilities to expliot.
- Sniffit,
a network packet sniffer. Includes an FAQ and some reasonable documentation.
- Rootkit, file lrk4.zip. Rootshell.com includes a search
facility to retrieve this file. Various programs are included, not
all of which will compile. Check out the README file, see whether it
scares you (it should!).
- A few other tools are on blue, not all of which seem to work...
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