Wireless & password security Mark Theeuwes. 2 Wireless basics.
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Transcript of Wireless & password security Mark Theeuwes. 2 Wireless basics.
Wireless & password security
Mark Theeuwes
2
Wireless basics
3
Wireless basics
Radio waves
4
Wireless basics
Channels 2,4 GHz (802.11 B/G/N)
5
Wireless basics
Channels 5GHz (802.11 A/N)
6
Wireless basics
Reflection
Absorbtion
Refraction
Scattering
7
Wireless basics
Omnidirectional antenna
8
Wireless basics
Other Antenna’s
9
Wireless basics
WLAN Cell
10
Wireless basics
Range
11
Wireless basics
Roaming
12
Wireless basics
Roaming
13
Wireless basics
Cells
14
Wireless basics
Honey cone
15
Wireless basics
Building
16
Wireless basics
Autonomous Accespoint
17
CiscoWireless
LWAP
18
Cisco Wireless
4) Cisco Secure ACS servers
Printers with wireless workgroup bridge
Notebook Wireless workstations
CISCO AIRONET 1200 I WIRELESS ACCESS POINT CISCO AIRONET 1200 I WIRELESS ACCESS POINT
5) ADS Domain Controllers
RA
DIU
S
LDAP
AES
WEP128
CISCO AIRONET 1200 I WIRELESS ACCESS POINT
CISCO AIRONET 1200 I WIRELESS ACCESS POINT
CISCO AIRONET 1200 I WIRELESS ACCESS POINT
CISCO AIRONET 1200 I WIRELESS ACCESS POINT
LAN LWAP
WLAN controllers
Firewalls
19
Wireless
20
Wireless basics
Association
21
Wireless basics
Security options
22
Wireless attacks
23
Wireless attacks
24
WEP cracking
25
WPA2 cracking
26
Passwords
27
Strong passwords
28
Passwords
password
2Mypassword
2MyPa$$w0rd!
1Ef$aŎX9s2!#
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Password policy considerations
What is too simple ? Password age ? Password length ?
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Passwords
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Strong passwords
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Myspace attack 2006 (34.000 passwords)
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Myspace attack 2006
34
Most common passwords (America)
password1, abc123, myspace1, password, blink182, qwerty1, fuckyou, 123abc, baseball1, football1, 123456, soccer, monkey1, liverpool1, princess1, jordan23, slipknot1, superman1, iloveyou1, monkey
35
Password hashes
36
Password hashes
37
Password hacking
38
Password guessing
The word "password" The same as the user name Name of the user Birthdays or birth places Relatives Pets Favorite colors, foods, places, etc.
39
Dictionary attacks
40
Brute force
41
Rainbow tables
NTLM hashes
42
Password database Fontys Venlo (10 years ago)
43
Future ?
44
Security is a trade off
45
Questions
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