honeypots - the art of building secure systems by making them vulnerable
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Honeypots - The Art of Building Secure Systems by Making them VulnerableTRANSCRIPT
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Honeypots The Art of Building Secure Systems by Making them Vulnerable
15th of January 2014, Talks #32
Andrei AvădăneiPresident of Cyber Security Research Center from Romaniahttp://ccsir.org
Cyber Security Research Center from Romania
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Summary
1. Short bio
2. Into the Honeypots world..
3. Why should you care?
4. Types of Honeypots
5. Examples
6. Resources & References
7. Questions?
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1. Short bioPresident at CCSIR
Founder aand coordinator of DefCamp
Blogger @worldit.info
Speaker at Talks #1 :>
Ambassador of Talks by Softbinator
Proof:
… and others.
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2. Into the Honeypots world..
"A honeypot is a trap set to detect, deflect or in some
manner counteract attempts at unauthorized use of
information systems." [1]
"A honeypot is a security resource who's value lies in
being probed, attacked or compromised" [2]
- often, honeypot features are found in IDS products
- it's just another layer of security
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3. Why should you care?
- collect little data of high value
- usually no resource exhaustion
- no fancy algorithm to develop, no signature databases
to maintain, no rule base to misconfigure
- has a good return of investment if your setup is properly
configured
- prevent attacks before they really happens
- catch 0day (malware and attacks)
-> better security
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4. Honeypot types#1 – by enviroment
Production - one used within an organization's
environment to help mitigate risk. Ex: kippo, honeyd,
bubblegum, specter.
- distraction
- detect internal threats
- security assement
Research – add value to research in computer security
by providing a platform to study the threat. Ex:
Honeywall, Sombria, Sebek
- discover new attacks
- understand blackhat community
- help building some better defenses against threats
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4. Honeypot types#2 – by interaction
1. Low-interaction – honeyd, kfsensor
2. Medium-interaction – kippo, specter
3. High-interaction – Honeynet
- full enviroments/architecture
- maybe both defensive and offensive interaction [3]
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5. ExamplesCase study #1 – Softbinator.ro
- change ssh default port and install kippo as a
honeypot
- they run on WP so they should fake some WP plugins
versions
- add some fake configs pointing to a ftp (or others
services) that is logged
- create a folder that it can be brute forced where you
have some vulnerable script that is proxy reversed to
other server/VM
- log all this stuff in a fancy dashboard
- you can block requests automatically from iptables if
are you sure that nobody should be there
Estimating time of implementation: <= 24-48 hours.
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5. ExamplesCase study #2 – A network #I
- Gen1 honeynet
- create a separate dedicated network, layer 3 routing
firewall to limit/block outbound connections
- disadvantage on data capture, fingerprinting, destroying
Estimating time of implementation: <= 1-2 weeks.
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5. ExamplesCase study #2 – A network #II
- Gen2 honeynet
- can be used in the production network, honeynet
sensor act like a bridge on layer 2
- detect unauthorised/unknown activities
- Hogwash is an example of IDS gateway that can drop
or modify the packets that passes through the gateway
Estimating time of implementation: <= 1-2 weeks.
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5. ExamplesCase study #3 – Database of emails
- buy a random domain, lets say: honeyyyy.com
- configure a minimal mail service
- add some random users through your database. Ex:
[email protected], [email protected]
- create some triggers on the mail service to forward all
incoming mails from these particular adresses to you.
Estimating time of implementation: <= 1-4 hours.
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5. ExamplesCase study #4 – some fun with kippo
“Kippo is a medium interaction SSH honeypot designed
to log brute force attacks and, most importantly, the
entire shell interaction performed by the attacker.”
- you can download logs from ccsir.org/files/logs.tgz
- PS: tx shark0der for the logs
Lets play: utils/playlog.py logname.log
20130929-154735-3196.log
20130924-185020-4539.log
Etc.
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Bonus - ethical issues concerning Honeypots
- M.E. Kabay, the author of 'Liability and Ethics of
Honeypots' is unethical, proposing the next question:
“Since it is both unethical and illegal to lure someone into
stealing an object, why is it legal or ethical to lure an
individual into commiting a computer crime?”
- Other experts consider honeypots not only unethical,
but a disadvantage to the computer world since they are
in essence “building the better hacker”
- B. Scottberg, author of 'Internet Honeypots: Protection
or Entrapment?'
"tracking an intruder in a honeypot reveals invaluable
insights into attacker techniques and ultimately motives
so that production systems can be better protected. You
may learn of vulnerabilities before they are exploited."
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6. Resources & References1.http://ethics.csc.ncsu.edu/abuse/hacking/honeypots/st
udy.php
2. http://en.wikipedia.org/wiki/Honeypot
3.
http://www.darkreading.com/vulnerability/honeypot-sting
s-attackers-with-counterat/240151740
4. http://www.it-docs.net/ddata/792.pdf ← Awesome!
Honeypots:
https://github.com/rep/hpfeeds
http://www.honeyd.org/
https://github.com/buffer/thug
http://glastopf.org/
http://dionaea.carnivore.it/
http://www.specter.com/introduction50.htm
http://www.keyfocus.net/kfsensor/
http://map.honeycloud.net/
https://www.projecthoneypot.org/index.php
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7. Questions?
or
Stay safe! :-)
Cyber Security Research Center from Romania