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Kan noenhøre deg? Per Thorsheim CISA, CISM, CISSP-ISSAP Sikkerhetskoordinator
Bakgrunn Chaos Computer Club, kongress Desember 2009 GSM : SRSLY? (Chris Paget, Karsten Nohl) A practical-timeattackonthe A5/3 cryptosystem used in thirdgeneration GSM telephony (Dunkelman, Keller, Shamir), januar 2010 Blackhat 2010 Paranoia 2010 : 15$ + tid og programvare = SMS (Frank Stevenson) Chaos Computer Club, kongress Desember 2010
Kilde: digi.no
www.finnsenderen.no
www.finnsenderen.no
Dumme, smarte telefoner? (Gartner, Q3, 2010) 7 DND Hackers Pub 31. januar 2011 – Per Thorsheim
Brute-force angrep DND Hackers Pub 31. januar 2011 – Per Thorsheim 8
http://reflextor.com/trac/a51
Man-in-the-Middle angrep Du kan velge nettoperatør (Telenor, Netcom…) Men du kan ikke velge basestasjon Jeg lager en basetasjon Min basestasjon gir best signalstyrke Du kobler deg automatisk til Via Internett kobler jeg deg videre dit du skal
Glemmer vi noe her?
Spørsmål: Har du avlyttet en GSM/3G telefonsamtale? Har du noen gang ”sniklyttet” til noen som prater i mobiltelefon? Har du noen gang ”sniklyttet” til noen som prater i telefon? Bruker du høyttaler funksjon når du er i telefonmøter? 13 DND Hackers Pub 31. januar 2011 – Per Thorsheim
Prater du kryptert? DND Hackers Pub 31. januar 2011 – Per Thorsheim http://security.osmocom.org/trac/wiki/WillMyPhoneShowAnUnencryptetConnection 14
Soundminer (video) 15 DND Hackers Pub 31. januar 2011 – Per Thorsheim
i/P/ad/od/hone DND Hackers Pub 31. januar 2011 – Per Thorsheim AES Hardware DeviceEncryption ”Encryptbackup” flagondevice 20 ,[object Object]
Password policy for encryption?Screenshots from ElcomsoftAPPB, opening an iPod Backupand exploringitskeychain for interesting data.
Science fiction? (video av DIY Laser eavesdropping) DND Hackers Pub 31. januar 2011 – Per Thorsheim 21
Alternativer? DND Hackers Pub 31. januar 2011 – Per Thorsheim 22
Software VoIP på mobiltelefon DND Hackers Pub 31. januar 2011 – Per Thorsheim Både gratis og kommersielle produkter tilgjengelig Skype (ulike plattformer) Android: RedPhone, TextSecure 23 In an interview Kurt Sauer, the Chief Security Officer of Skype, he said, "We provide a safe communication option. I will not tell you whether we can listen or not."
Hardware:  DND Hackers Pub 31. januar 2011 – Per Thorsheim ”Spesialtelefoner” med hardware kryptering over datanett 24
DND Hackers Pub 31. januar 2011 – Per Thorsheim 25 #DLD
Oppsummert – for g33k5… DND Hackers Pub 31. januar 2011 – Per Thorsheim 2G er ikke bra. 3G er bra. I dag. 4G (LTE) ? Bare bruk 3G Bruk VoIP Bruk SMS kryptering Ikke la andre bruke din telefon 26
Oppsummert DND Hackers Pub 31. januar 2011 – Per Thorsheim Mobiltelefoni er like åpent (eller lukket) som Internett Brukeropplæring er enda viktigere enn før Mer teknologi – flere utfordringer 27

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Hackers Pub Per Thorsheim Jan 31, 2011

  • 1. Kan noenhøre deg? Per Thorsheim CISA, CISM, CISSP-ISSAP Sikkerhetskoordinator
  • 2. Bakgrunn Chaos Computer Club, kongress Desember 2009 GSM : SRSLY? (Chris Paget, Karsten Nohl) A practical-timeattackonthe A5/3 cryptosystem used in thirdgeneration GSM telephony (Dunkelman, Keller, Shamir), januar 2010 Blackhat 2010 Paranoia 2010 : 15$ + tid og programvare = SMS (Frank Stevenson) Chaos Computer Club, kongress Desember 2010
  • 6.
  • 7. Dumme, smarte telefoner? (Gartner, Q3, 2010) 7 DND Hackers Pub 31. januar 2011 – Per Thorsheim
  • 8. Brute-force angrep DND Hackers Pub 31. januar 2011 – Per Thorsheim 8
  • 10. Man-in-the-Middle angrep Du kan velge nettoperatør (Telenor, Netcom…) Men du kan ikke velge basestasjon Jeg lager en basetasjon Min basestasjon gir best signalstyrke Du kobler deg automatisk til Via Internett kobler jeg deg videre dit du skal
  • 11.
  • 13. Spørsmål: Har du avlyttet en GSM/3G telefonsamtale? Har du noen gang ”sniklyttet” til noen som prater i mobiltelefon? Har du noen gang ”sniklyttet” til noen som prater i telefon? Bruker du høyttaler funksjon når du er i telefonmøter? 13 DND Hackers Pub 31. januar 2011 – Per Thorsheim
  • 14. Prater du kryptert? DND Hackers Pub 31. januar 2011 – Per Thorsheim http://security.osmocom.org/trac/wiki/WillMyPhoneShowAnUnencryptetConnection 14
  • 15. Soundminer (video) 15 DND Hackers Pub 31. januar 2011 – Per Thorsheim
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21. Password policy for encryption?Screenshots from ElcomsoftAPPB, opening an iPod Backupand exploringitskeychain for interesting data.
  • 22. Science fiction? (video av DIY Laser eavesdropping) DND Hackers Pub 31. januar 2011 – Per Thorsheim 21
  • 23. Alternativer? DND Hackers Pub 31. januar 2011 – Per Thorsheim 22
  • 24. Software VoIP på mobiltelefon DND Hackers Pub 31. januar 2011 – Per Thorsheim Både gratis og kommersielle produkter tilgjengelig Skype (ulike plattformer) Android: RedPhone, TextSecure 23 In an interview Kurt Sauer, the Chief Security Officer of Skype, he said, "We provide a safe communication option. I will not tell you whether we can listen or not."
  • 25. Hardware: DND Hackers Pub 31. januar 2011 – Per Thorsheim ”Spesialtelefoner” med hardware kryptering over datanett 24
  • 26. DND Hackers Pub 31. januar 2011 – Per Thorsheim 25 #DLD
  • 27. Oppsummert – for g33k5… DND Hackers Pub 31. januar 2011 – Per Thorsheim 2G er ikke bra. 3G er bra. I dag. 4G (LTE) ? Bare bruk 3G Bruk VoIP Bruk SMS kryptering Ikke la andre bruke din telefon 26
  • 28. Oppsummert DND Hackers Pub 31. januar 2011 – Per Thorsheim Mobiltelefoni er like åpent (eller lukket) som Internett Brukeropplæring er enda viktigere enn før Mer teknologi – flere utfordringer 27