Net Sec U8 - Wireless Networking

Wireless LANs
1. vulnerabilities
  1. anyone can receive
    1. anyone can transmit
802.11
1. standards
  1. Infrastructure mode
    1. BSS
      1. SSID
    2. ESS
  2. Ad-hoc mode
    1. IBSS
2. physical layer
  1. DSSS
3. data link layer
  1. LLC
  2. MAC
  3. CSMA/CA
  4. 'hidden nodes
4. security issues
  1. Access Point Roaming
  2. Interception
  3. War-driving
    1. AP Config
      1. Evil Twin APs
        Rogue APs or Ad-hoc networks
        Denial of Service
        Hub Broadcasts
5. SKA
6. WEP
802.11b
1. weaknesses
  1. Initialisation vector
  2. WEP keys
    1. weak
    2. Brute forcing
2. beyond
  1. 802.1x
    1. 802.11i
Safeguards
1. untrusted LAN
2. Sec. policy & architecture
3. discover unauthorised use
4. AP Audits
5. station protection
6. AP Locations
7. MAC address locking
Bluetooth
1. Piconets & Scatternets
2. Architecture
3. connection states
  1. active
  2. sniff
  3. hold
  4. park
4. security modes
  1. non-secure
  2. service level enforced
  3. link level enforced
5. link layer services
  1. authentication of peer devices
  2. confidentiality for transmitted data
  3. initialisation link key
  4. unit link key
  5. combination & master link key
6. vulnerabilities
  1. PINs
    1. entry impractical
    2. length
  2. unit key reuse
  3. unique addreses
  4. Denial of Srv.
  5. MitM attacks
  6. only device authenticated
7. safeguards
  1. Max PIN lengths
  2. Policy
  3. end-to-end security

Zusammenfassung der Ressource

	Erstellt von Nick.Bell2013 vor mehr als 11 Jahre