Schedule

Schedule

Saturday, November 29

1417287600 The Tech Guy

Sunday, November 30

1417374000 The Tech Guy
1417388400 This Week in Tech

Monday, December 1

1417456800 Tech News Today
1417460400 Triangulation
1417465800 iPad Today
1417478400 Tech News 2Night

Tuesday, December 2

1417543200 Tech News Today
1417546800 MacBreak Weekly
1417554000 Security Now
1417561200 Before You Buy
1417564800 Tech News 2Night
1417568400 All About Android
1417577400 Padre's Corner

Wednesday, December 3

1417624200 FLOSS Weekly
1417629600 Tech News Today
1417633200 Windows Weekly
1417640400 This Week in Google
1417651200 Tech News 2Night
1417653000 Android App Arena
1417658400 Ham Nation

Thursday, December 4

1417716000 Tech News Today
1417719600 Know How...
1417723200 Marketing Mavericks
1417728600 Coding 101
1417732200 Home Theater Geeks
1417737600 Tech News 2Night
1417739400 The Giz Wiz

Friday, December 5

1417802400 Tech News Today
1417806000 This Week in Law
1417824000 Tech News 2Night

Saturday, December 6

1417892400 The Tech Guy

Sunday, December 7

1417978800 The Tech Guy
1417993200 This Week in Tech

Most Recent Episodes

Android App Arena
Episode #23: Apps For Wear November 26th, 2014

RETRY, Wear Mini Launcher, and Aeris Wear Weather.

Tech News 2Night
Episode #224: GoPro Drones November 26th, 2014

Twitter Tracks Your Apps

iFive for the iPhone

How to tag photos in iOS

This Week in Google
Episode #277: FU EU November 26th, 2014

Europe wants to expand right to be forgotten.

Windows Weekly

Windows 10 build 9879, HP Stream, and Black Friday deals.

FLOSS Weekly
Episode #317: Pentaho November 26th, 2014

Pentaho a big data integration and business analytics software.

Tech News Today

EU wants to extend 'Right to be Forgotten' worldwide.

Before You Buy

Nexus 6 Review

All About Android

Nexus Player, Lollipop love/hate, and patent wars.

Security Now
Episode #483: Let's Encrypt November 25th, 2014

Steve Gibson looks in depth at new Certificate Authority "Let's Encrypt".

Know How... 102

Intro to Linux, RC Suspension, & ARP Cache Poisoning Attack

July 17 2014

We talk about the new Raspberry Pi B+, expert guest Aaron Newcomb goes over the different flavors of linux, learn how a remote control car suspension works, and put your black hat on for ARP Cache Poisoning Attack.

News Topic
Raspberry Pi B+ Announced

Linux 101

Aaron Newcomb shows the different flavors of Linux.

Remote Control Car Suspension

Coil Overs and Ball Bearings explained

The ARP Cache Poisoning Attack

The ARP Cache Poisoning Attack
ARP = "Address Resolution Protocol"
MAC = "Media Access Control"

Most of us think that our computers are identified by their IP address.
- However, on an ethernet network, they're actually identified by their MAC address (Media Access Control)
- A MAC is a 6-byte Hexideximal string that looks like, "00:11:aa:bb:cc:dd"

When we connect a computer to a network, it needs to become aware of all the other devices on the network, and all the other devices on the network need to become aware of the device.
- That's what ARP does: It correlates an IP address to a MAC address so that we can find a computer on the network with a particular IP address

Here's how it works:
* Computer A needs to send a file to Computer B
* Computer A knows that Computer B has the IP address of 192.168.1.2
* Computer A does an ARP Broadcast saying, "Hey! Who has the IP address 192.168.1.2?"
* Computer B hears the broadcast and responds, "I Do! 00:00:00:aa:aa:aa"
* Computer A know knows how to send the file to Computer B

Here's how access to the Internet Works:
* Computer A connects to the Network and receives a DHCP address of 192.168.1.3 with a gateway of 192.168.1.1
* It wants to sent data through the gateway to the Internet, so it does an ARP Broadcast saying, "Hey! Which of you is the gateway at 192.168.1.1?"
* The router(gateway) responds, "I'm 192.168.1.1 aa:bb:cc:dd:ee:ff
* Computer A sends data through the gateway at aa:bb:cc:dd:ee:ff

** Important to note is that all the devices will CACHE that response: so they all know which IPs belong to which MAC addresses.

Here's how a CACHE Poisoning Attack Works:
* Computer A wants to send data to the Internet, so it does an ARP Broadcast saying, "Hey! Which of you is the gateway at 192.168.1.1?"
* The router responds, "I'm 192.168.1.1 aa:bb:cc:dd:ee:ff"
* The attacking computer takes note that the gateway is at aa:bb:cc:dd:ee
* The attacking computer responds CONTINUOUSLY "I'm 192.168.1.1 22:22:22:22:22:22"
* Computer A sends data through WHAT IT THINKS is the gateway at 22:22:22:22:22:22
* The attacking computer receives the data, sniffs it, then sends it on to the REAL gateway at aa:bb:cc:dd:ee:ff

Using Cain and Abel
1. Download and Install Cain and Abel
2. You may need to disable global taskoffloading (netsh int ip set global taskoffload=disable)
3. Run the Sniffer
4. Switch to the Sniffer tab and hit the "+" icon to add a range scan (Use the IP range you're a part of)
5. Switch to the "ARP" tab at the bottom of the screen
6. Hit the "+" icon to Select your router and the client that you want to poison (or multiple clients)
7. Hit the "ARP" icon in the top bar to start the attack
8. Run Wireshark for more clear information

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