wireless network hacking. authentication techniques 1. open system: no security techniques 2....

CHAPTER 10

Wireless Network Hacking

Authentication & Cracking Techniques

Authentication Techniques 1. Open System: no security techniques 2. Shared-Key: uses hashed string challenge

with WEP key WEP: RC4 64-bit or 128-bit

40-bit or 104-bit with 24-bit IV Open to FMS (Fluhrer, Marntin, Shamir) attack

WPA: TKIP for encryption WPA2: AES for encryption

TKIP

Per packet key mixing rekeying mechanism message integrity check (MIC)

IV increased to 48 bits Over 500 Trillion keystreams possible IV are hashed

Wireless Hacking Tools

Wardriving, Warwalking, Warflying, etc.

Aircrack: Windows and Linux

WEPCrack: Linux

AirSnort: Linux

NetStumbler: Windows Includes GPS to map WAPs

Kismet: Linux

Sniffing for SSID

http://www.youtube.com/watch?v=jETwvEDaJeQ

http://www.youtube.com/watch?v=6RIUOoMdkv8

http://www.youtube.com/watch?v=BaDUw8WZx5A

MAC Filters / MAC Spoofing Used to bypass MAC filtering on WAP Tools

SMAC

Rogue APs Rogue WAP Evil Twin / AP Masquerading

Tools to generate fake WAPs Fakeap Netstumbler MiniStumbler

Wireless Hacking Techniques

Eavesdropping / Sniffing DoS AP Masquerading / Spoofing MAC Spoofing Planting Rogue Aps

http://news.yahoo.com/blogs/upgrade-your-life/banking-online-not-hacked-182159934.html

Securing Wireless

Change default settings

Use WEP / WPA encryption

Enable firewall settings

Reduce WLAN transmitter power

Disable remote administration

Cracking WPA / WPA2 http://

www.youtube.com/watch?v=u-dqi23oaS8