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NFC: Tecnologia e Sicurezza

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Un riepilogo dei principali tools Linux per analizzare i tag NFC!

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  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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NFC: Tecnologia e Sicurezza

  1. 1. NEAR FIELD COMMUNICATION
 TECNOLOGIA E SICUREZZA Andrea Draghetti Linux Day 27 Ottobre 2018 L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  2. 2. $ WHOAMI Phishing Analysis and Contrast @ D3Lab Team Member @ BackBox Linux Matteo Flora L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  3. 3. NEAR FIELD COMMUNICATION La tecnologia NFC si è evoluta da una combinazione d'identificazione senza contatto o RFID (Radio Frequency Identification – Identificazione a Radio Frequenza) e altre tecnologie di connettività. Contrariamente ai più semplici dispositivi RFID, NFC permette una comunicazione bidirezionale: quando due apparecchi NFC (lo initiator e il target) vengono accostati entro un raggio di 4 cm, viene creata una rete peer-to-peer tra i due ed entrambi possono inviare e ricevere informazioni. La tecnologia NFC opera alla frequenza di 13,56 MHz e può raggiungere una velocità di trasmissione massima di 424 kbit/s.
 
 {Wikipedia} L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  4. 4. NFC VS BLUETOOTH Bluetooth • Permette il trasferimento dati ad alta velocità • Consente la comunicazione a medie distanze • Richiede paring iniziale NFC • Comunicazione istantanea • È orientato al trasferimento dati one-shot • Può essere utilizzato per effettuare un paring Bluetooth L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  5. 5. NFC VS QR CODE QR Code • Tecnologia a costo zero • Solo read-only • Non offre protezione asimmetrica NFC • Offre protezione simmetrica e asimmetrica • I tag Nfc possono essere sia scritti che letti • Richiede negli Smartphone la presenza del chipset L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  6. 6. PRINCIPIO DI FUNZIONAMENTO Fonte: http://www.scienceprog.com/how-does-rfid-tag-technology-works/ Il componente attivo emette un campo elettromagnetico che induce una corrente sul circuito del componente passivo. 
 Tale corrente è sufficiente ad
 alimentare il microcontrollore a bordo, ricevere il dato, effettuare l’elaborazione e trasmettere una risposta. L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  7. 7. SCENARI APPLICATIVI • Pagamenti • Advertising • Ticketing • Tracking • Gaming • Social • Medical L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  8. 8. TAG NFC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  9. 9. CHIP NFC • NTAG: Chip di ultima generazione che garantiscono una piena compatibilità con gli smartphone (fino a 888byte) • Mifare Classic: Supporto la crittografia e progettati per un prolungato utilizzo, raramente supportati dagli smartphone (fino a 3440byte) • Mifare Ultralight: Come i precedenti ma con minor spazio di memoria (46byte) • iCode: Standard industriale compatibile con gli standard ISO 15693 e ISO 18000-3 L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  10. 10. LETTORI NFC ACR122U PN532 L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  11. 11. LETTORI NFC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I Proxmark3
  12. 12. APPLICAZIONI ANDROID NFC Tools MIFARE Classic Tool L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  13. 13. APPLICAZIONI LINUX: MFOC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I https://github.com/nfc-tools/mfoc
  14. 14. APPLICAZIONI LINUX: MFCUK L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I https://github.com/nfc-tools/mfcuk
  15. 15. APPLICAZIONI LINUX: HEXCURSE L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I https://github.com/LonnyGomes/hexcurse
  16. 16. APPLICAZIONI LINUX: NFC-MFCLASSIC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I https://github.com/nfc-tools/libnfc
  17. 17. RASPBERRY: DIPENDENZE E PACCHETTI L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I $ sudo apt install autoconf build-essential libtool libusb-dev libpcsclite-dev $ sudo apt install libnfc-bin libnfc-examples libnfc-dev Mfoc e Mfcuk compilazione una volta scaricati i rispettivi sorgenti: $ autoreconf -vis $ ./configure $ make $ sudo make install
  18. 18. OPEN SOURCE RFID TOOL COLLECTION RFID Tools as .deb • binary .deb Package for Ubuntu x64 only • containing mfok, fcuk and RFIDLab • download rfid-tools_1.0.0_amd64.deb • install prequesists: sudo apt-get install pcscd • edit /etc/libccid_Info.plist
 <key>ifdDriverOptions</key> <string>0x0004</string> • install:
 sudo dpkg -i rfid-tools_1.0.0_amd64.deb Bootable USB-Stick image • bootable Debian USB-Stick image file • containing mfoc, fcuk, RFIDLab and the cyberflex-shell • download attachment:rfid_tool_usb_stick.img • write to USB-Stick: sudo dd if=rfid-tools_usb.img of=/dev/sdX bs=4096 count=262144 • user: root pw: toor https://opensource.srlabs.de/projects/rfid L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  19. 19. APPLICAZIONI WINDOWS L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T IL I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  20. 20. APPLICAZIONI WINDOWS L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T IL I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  21. 21. NFC: LAB MIFARE CLASSIC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I $ nfc-list -v nfc-list uses libnfc 1.7.1 NFC device: ACS / ACR122U PICC Interface opened [….] [….] Fingerprinting based on MIFARE type Identification Procedure: * MIFARE Classic 1K * MIFARE Plus (4 Byte UID or 4 Byte RID) 2K, Security level 1 * SmartMX with MIFARE 1K emulation Prendiamo in esempio un tag NFC Mifare Classic 1k
  22. 22. NFC: LAB MIFARE CLASSIC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I $ mfoc -O original.mfd Found Mifare Classic 1k tag [….] [….] Try to authenticate to all sectors with default keys... Symbols: '.' no key found, '/' A key found, '' B key found, 'x' both keys found [Key: ffffffffffff] -> [x.....xxxxxxxxxx] [Key: a0a1a2a3a4a5] -> [x.....xxxxxxxxxx] [Key: d3f7d3f7d3f7] -> [x..... Effettuiamo il dump del TAG
  23. 23. NFC: LAB MIFARE CLASSIC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I Se il tag non sfrutta le chiavi prestabilite $ mfcuk -C -v 1 -R 0:A -O original_ext.dmp -o original.dmp mfcuk - 0.3.8 Mifare Classic DarkSide Key Recovery Tool - 0.3 by Andrei Costin, zveriu@gmail.com, http://andreicostin.com [….] [….] INFO: Connected to NFC reader: ACS / ACR122U PICC Interface INITIAL ACTIONS MATRIX - UID 56 f7 09 65 - TYPE 0x08 (MC1K) VERIFY: Key A sectors: 0 1 2 3 4 5 6 7 8 9 a b c d e f Key B sectors: 0 1 2 3 4 5 6 7 8 9 a b c d e f
  24. 24. NFC: LAB MIFARE CLASSIC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I Visualizziamo e/o Editiamo il dump $ hexcurse original.mfd
  25. 25. NFC: LAB MIFARE CLASSIC L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I Scriviamo il dump editato su una nuova tag $ nfc-mfclassic w B original_edited.mfd newtag.mfd NFC reader: pn532_uart:/dev/ttyUSB0 opened Found MIFARE Classic card: ISO/IEC 14443A (106 kbps) target: ATQA (SENS_RES): 00 04 UID (NFCID1): 8e db 1a 2a SAK (SEL_RES): 08 Guessing size: seems to be a 1024-byte card Writing 64 blocks |..failed to write trailer block 3 x............................................................| Done, 62 of 64 blocks written.
  26. 26. L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I NFC: LAB MIFARE CLASSIC
  27. 27. Q&A @AndreaDraghetti I materiali e i contenuti delle slide sono protetti da licenza CC BY-NC 3.0 L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I
  28. 28. BIBLIOGRAFIA L I N U X D A Y 2 7 O T T O B R E 2 0 1 8 I M O L A - A N D R E A D R A G H E T T I • Introduzione a NFC {Stefano Sanna} - http://bit.ly/2ywvl5l • Hacking Mifare Classic Cards {Marcio Almedia} - https://ubm.io/2q7QUEV • How to Crack Mifare Classic Cards {FireFart} - http://bit.ly/2ReiEmW

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