ARP resolves an IP address to MAC addresses. ARP was not designed to deal with malicious activity such as cache poisoning or spoofing attacks. Lisa Bock investigates tools to detect ARP attacks.
- [Voiceover] Address resolution protocol…is used to resolve an IP address to a physical address.…The original RFC was written in 1982.…ARP wasn't designed to deal with malicious activity.…Moreso it was so that all hosts knew…where everyone was on the network.…However, we know there are attacks.…So you should protect your network…and monitor for ARP attacks.…Let's take a look at some of the tools that are available.…I'm at this website snort.org.…Snort is a powerful intrusion detection system…that you can use.…
Once you configure it it will monitor for threats.…However there is the ARP Spoof Preprocessor.…And there's a couple configuration options…you can include here to monitor for some attacks.…Arpalert will listen to a network interface…and catch all conversations of mac address…to IP address requests.…Now this is going to compare with a list…of authorized mac addresses to make sure…that nothing suspicious is going on.…Arpwatch is something that you can simply configure…and as you can see it keeps track…of ethernet IP address pairing.…
Author
Updated
1/13/2020Released
9/29/2016Note: The topics in this course will prepare you for key objectives on the Certified Ethical Hacker exam. Find an overview of the certification and the exam handbook at https://www.eccouncil.org/programs/certified-ethical-hacker-ceh/.
- Sniffing network traffic
- Passive vs. active attacks
- Comparing IPv4 to IPv6
- MAC and macof attacks
- Investigating DHCP attacks
- Detecting ARP and DNS spoofing
- Sniffing tools and techniques
Skill Level Beginner
Duration
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Introduction
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Welcome1m 5s
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1. Sniffing Overview
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Sniffing network traffic4m 15s
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The OSI model4m 10s
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Passive and active attacks4m 34s
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Tapping into the data stream3m 19s
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Comparing IPv4 to IPv64m 35s
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2. MAC Attacks
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macof attack demo1m 51s
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Spoofing a MAC address2m 47s
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3. DHCP
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Investigating DHCP4m 20s
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Depleting the DHCP pool1m 25s
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4. ARP
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Address Resolution Protocol2m 48s
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Ettercap for ARP poison3m 8s
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Detecting ARP spoofing2m 51s
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5. DNS
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Domain Name Systems3m 28s
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Caching and forgery2m 12s
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Poisoning DNS1m 56s
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6. Sniffing Tools and Techniques
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Capturing images1m 19s
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Investigating OmniPeek3m 13s
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Other sniffing tools1m 9s
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Defending against sniffing1m 53s
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Conclusion
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Next steps2m
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Video: Defending against ARP attacks