Wifi Cryptoparty 2013

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Information about Wifi Cryptoparty 2013
Technology
mac

Published on February 23, 2014

Author: pawal

Source: slideshare.net

Description

Min presentation om Wifi-säkerhet, "Du läcker data!" från Cryptoparty Stockholm, 2011-11-18 på Konsthall C i Hökarängen.

DU LÄCKER DATA! Patrik Wallström, DFRI

Geolokalisering

Geo-lokalisering Hur kan “location accuracy” förbättras med Wifi påslaget?

GPS funkar inte inomhus... ! Vi är inomhus 90% av tiden.

iPhone lagrar data • Information om wifi-accesspunkten (MAC, kanal, hidden, RSSI) ! • Information om telefonen (latitud, longitud, altitud, horisontell och vertikal noggrannhet, hastighet och kurs) ! • Ytterligare information som tidsstämpel, ålder, använd app, och trovärdighet ! Lagras i filen consolidated.db

War driving

War driving! Passiv lyssning på radiotrafiken... ! Alla wifi-nät är kartlagda med: ! ESSID MAC-adress Säkerhets- och autentiseringsprotokoll Geografisk position

wigle.net

MozStumbler

Vad kan vi se om ditt nät?

Kismet • Lyssnar på “layer 2” • Kan sniffa 802.11[a|b|g|n] • Även DECT...

Knäcka krypteringen

Kartläggning

Men din telefon då?

tshark -n -i wlan0mon subtype probereq

Falska AP:s...

Ta bort nät då? There is no way to selectively delete old wireless networks without being connected to them.   If you use Settings -> General -> Reset -> Reset network setting all known wireless networks will be removed.You can then start fresh.

Allmänna råd • Skydda ditt egna wifi-nät med WPA2-PSK • Använd HTTPS • Vid anslutning av “okända” wifi-nät, använd VPN • Slå av wifi i telefonen när du är ute och går https://www.iis.se/lar-dig-mer/guider/it-sakerhet-for-privatpersoner/tradlosa-natverk/

TACK! ! pawal@blipp.com @pawal

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