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Stephan Bayer September 9, 2004 INLS 187

Stephan Bayer September 9, 2004 INLS 187. What is it?. War Driving Software WarDriving v. The benign act of locating and logging wireless access points while in motion. Access Point (AP) Identification Software. Its Purpose.

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Stephan Bayer September 9, 2004 INLS 187

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  1. Stephan Bayer September 9, 2004 INLS 187

  2. What is it? • War Driving Software • WarDriving v. The benign act of locating and logging wireless access points while in motion. • Access Point (AP) Identification Software

  3. Its Purpose • Allows you to map out vulnerable APs for future use or pinpoint them for hardening

  4. Not a “Sniffer” or WEP Cracker • Originally released as a tool that analyzed the 802.11 header and IV fields of packet to determine • SSID • MAC address • WEP Usage • WEP Key length (40 or 128 bit) • Signal range • Access point vendor

  5. Acronyms of things this software looks for • SSID (Service Set Identifier) • MAC (Media Access Control) • IV (Initialization Vector) • WEP (Wired Equivalent Privacy) • The IV of a WEPpacket is included after the 802.11 header and is used in combination with the shared secret key to cipher the packet’s data

  6. War Driving Set-Up

  7. GPS • Netstumbler will detect relative position of APs with GPS • Records GPS coordinate for the highest signal strength found for each access point • Can be used to create maps • Publish your maps to the web!

  8. How it works • Probe Request sent to broadcast destination address • Response from APs contain network configuration information • SSID • WEP status • etc

  9. Instructions • Download and install Netstumbler • Set SSID or Network Name to ANY • Start Netstumbler and click on the green arrow on the toolbar

  10. Filters • WEP usage • IBSS or BSS type network • IBSS – group of systems without AP • Not good to use as a bridge to internal LAN

  11. Weaknesses • Relies on one form of wireless network detection • Broadcast Probe Request • Wireless vendors offer an option to disable the 802.11 feature on APs

  12. Conclusion • AP identification software • Can actually be used to set up your home network • Used for War Driving • Not illegal, but ethics are questioned • Sources: Hacking Exposed, Google Image Search

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