An ARP spoof or ARP cache poison is used in a man-in-the-middle attack. Lisa Bock demonstrates in Wireshark how you can identify an ARP spoofing attack.
- [Voiceover] Address resolution protocol is used to…resolve an IP address to a physical address.…Now ARP can have some problems, they're rare but…mainly they're due to configuration errors and that…someone may have assigned an incorrect IP address…or there may be an incorrect subnet mask.…However, we know that there are attacks against…ARP, one being ARP spoof attack.…ARP spoofing in used in a man-in-the-middle attack.…It's also known as an ARP cache poison.…
This attacker sends spoofed ARP messages.…Now, you ask yourself how does this happen?…ARP spoofing can take place because ARP is stateless,…meaning it doesn't retain any prior information…on packets that it had sent in the past.…An ARP reply can be sent even if there…has been no request and it will be accepted.…This then poisons the cache.…Well let's take a look.…I'm at this website securitysite.com and here…we see some PCap file analysis.…
This page is loaded with a lot of PCaps that you can…used in order to study a little bit more about the protocols…but I'm going to take a look at ARP spoof.…
Author
Lisa Bock
Released
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
Views
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Introduction
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Welcome57s
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Hacking ethically1m 5s
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1. Sniffing Overview
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Sniffing network traffic3m 21s
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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 DHCP3m 32s
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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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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: Detecting ARP spoofing