festival ICT 2013: Mobile Network Security: stato dell’arte e oltre
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Transcript of festival ICT 2013: Mobile Network Security: stato dell’arte e oltre
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Mobile Network Security: stato dell’arte ed oltre
Festival Della Tecnologia ICT Milano, 18.09.2013
Version: 1.0 Author: L. Bongiorni Responsible: L. Bongiorni Date: 18.09.2013 Confidentiality Class: Public
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Luca Bongiorni
ü Security Consultant ü Telco Enthusiast ü Interests: break stuff ,
lockpicking & collect PayPhones
Work at . . .
!
!a company
Who am I
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La Rete GSM
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A tutt'oggi, sebbene progettualmente datato (1987), lo standard di radio-comunicazione cellulare più diffuso al mondo è il GSM (Global System for Mobile Communications), esso conta, infatti, oltre 4.4 miliardi di
utenti in più di 200 stati.
Esso ha garantito negli anni, la possibilità di comunicare mantenendo un'efficiente mobilità, grazie la quale è massivamente utilizzato non
solo dalla gente comune, ma anche da criminali ed organizzazioni terroristiche.
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Negli ultimi 5 anni un gran numero di Progetti OpenSource ed Attacchi Pratici sono stati resi pubblici…
GSM + OpenSource == FUN
Um Passive Sniffing A5/1 Cracking
Um Active MITM RachDoS
IMSI-Detach GPRS Sniffing
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• IMSI-Catcher: • Known Victim Mode (Italia) • GPRS & Data Connections
• GPRS Passive Sniffing: • XXXXX (EU Nation 1) • Wind (Italia) • XXXXX (EU Nation 2)
• What’s Next?! • GSM-R (Catching & DoSsing)
Alcuni Casi di Studio…
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Vulnerabilità Architetturali Sfruttate
• No Mutua Autenticazione o La rete autentica la MS e non viceversa
• Mobilità degli utenti o Il segnale più forte vince (Cell Selection e Reselection) o Location Update forzato (if LACPLMN != LACIMSI-Catcher
then swtich to IMSI-Catcher)
• La Cifratura è Opzionale o A5/0 No Encryption
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Prototipo
Lab’s Configuration
IMSI-Catcher: Il Prototipo
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Location Disclosure
Catch-and-Relay
CallerIDvittima
Lista Città ed IMSI
Local Area
Known Victim Mode (Italia)
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Known Victim Mode (Italia): Location Disclosure
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+ CRO = 63 (max) + T3212 = 0
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Known Victim Mode (Italia): Catch & Relay
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• Spoofing CallerID
• Intercettazione Chiamate ed SMS in uscita
• Dirottamento Chiamate d’Emergenza
Qualche Risultato…
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What happens if we JAM the UMTS & LTE frequencies?!
Le GSM: “Welcome back my dear”
Le UE: “Nice to meet you again sir GSM”
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Interoperabilità con UMTS & LTE
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E’ una Picocella commerciale sviluppata da ip.Access 100% compatibile con OpenBSC (software OpenSource)
GPRS [the newest one, also EDGE]
Encryption A5/1 – A5/2 IP connection
PoE powered PCS band (1900 MHz)
Welcome home IMSI-Catcher 2.0
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Cosa potremmo mai farci?! Uhm… Attacchi Man-In-The-Middle verso interessanti ME!
• Video Poker • Point-Of-Sale • Smart Meters • SCADA Remote Stations
• Mobile HotSpots
A quale scopo?! Principalmente tutti gli attacchi disponibili tramite TCP/IP!
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
• Alarm Systems
IMSI-Catcher 2.0 for Fun & Profit
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Esempio: Point-Of-Sale 2G (test preliminare)
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© 2013 SEC Consult– All rights reserved
Cosa potremmo mai farci?! Uhm… Man-In-The-Middle Attacks verso interessanti ME!
• Video Poker • Point-Of-Sale
• Smart Meters • SCADA Remote Stations
• Mobile HotSpots
A quale scopo? Principalmente tutti gli attacchi disponibili tramite TCP/IP!
• Alarm Systems
IMSI-Catcher 2.0 for Fun & Profit
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2G Antenna
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
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© 2013 SEC Consult– All rights reserved
Cosa potremmo mai farci?! Uhm… Man-In-The-Middle Attacks verso interessanti ME!
• Point-Of-Sale
• Smart Meters • SCADA Remote Stations
• Mobile HotSpots
A quale scopo? Principalmente tutti gli attacchi disponibili tramite TCP/IP!
• Alarm Systems
IMSI-Catcher 2.0 for Fun & Profit
19
• Video Poker
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
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© 2013 SEC Consult– All rights reserved
Cosa potremmo mai farci?! Uhm… Man-In-The-Middle Attacks verso interessanti ME!
• Point-Of-Sale
• SCADA Remote Stations • Mobile HotSpots
A quale scopo? Principalmente tutti gli attacchi disponibili tramite TCP/IP!
• Alarm Systems
IMSI-Catcher 2.0 for Fun & Profit
20
• Video Poker • Smart Meters
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
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© 2013 SEC Consult– All rights reserved
Cosa potremmo mai farci?! Uhm… Man-In-The-Middle Attacks verso interessanti ME!
A quale scopo? Principalmente tutti gli attacchi disponibili tramite TCP/IP!
IMSI-Catcher 2.0 for Fun & Profit
21
• Smart Meters
• Point-Of-Sale
• SCADA Remote Stations
• Mobile HotSpots • Alarm Systems
• Video Poker
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
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© 2013 SEC Consult– All rights reserved
Cosa potremmo mai farci?! Uhm… Man-In-The-Middle Attacks verso interessanti ME!
A quale scopo? Principalmente tutti gli attacchi disponibili tramite TCP/IP!
IMSI-Catcher 2.0 for Fun & Profit
22
• Smart Meters
• Point-Of-Sale
• SCADA Remote Stations
• Alarm Systems
• Video Poker
• Mobile HotSpots
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
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© 2013 SEC Consult– All rights reserved
Cosa potremmo mai farci?! Uhm… Man-In-The-Middle Attacks verso interessanti ME!
A quale scopo? Principalmente tutti gli attacchi disponibili tramite TCP/IP!
IMSI-Catcher 2.0 for Fun & Profit
23
• Smart Meters
• Point-Of-Sale
• SCADA Remote Stations
• Video Poker
• Mobile HotSpots
• Sniffing communications (e.g. Wireshark + SSLstrip) • Hijacking trusted connections (e.g. Stealing Credentials) • Deploying malicious software (e.g. Squid + Metasploit) • Malware Analysis • Protocol Analysis • Etc.
What about UMTS and LTE?!
• Alarm Systems
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© 2013 SEC Consult– All rights reserved
Catturare ed Intercettare un modem LTE
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“GPRS Intercept Wardriving phone networks” by Nohl & Melette, 2011
They patched OsmocomBB and developed GPRSDecode to analyze GPRS packets.
http://tinyurl.com/gprs-nohl-slides
Alcuni Casi di Studio...
GPRS Passive Sniffing
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Col fine di stimolare traffico dati, é stato utilizzato un vecchio modem GPRS Telit MG-10.
Come sniffer invece, un Pirelli DP-L10 con un firmware ad-hoc basato su Osmocom-BB.
GPRS Passive Sniffing XXXXX (EU Nation 1)
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GPRS Passive Sniffing Wind (Italia)
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GPRS Passive Sniffing Wind (Italia)
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GPRS Passive Sniffing Wind (Italia) Analisi del 14/09/2013 del canale ARFCN 983
(222-88 – Wind Italia)
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Quale tipologia di sevizio potrebbe utilizzare le reti cellulari come mezzo di comunicazione?
GPRS Passive Sniffing: XXXXX (EU Nation 2)
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“Securing your World. G4S is the world’s leading international security solutions group”
From http://www.g4s.com/
GPRS Passive Sniffing: XXXXX (EU Nation 2)
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What’s Next?: GSM-R Catching
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What’s Next?: GSM-R DoSsing
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Fine
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Bibliografia & Link
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http://www.openbts.org http://openbsc.osmocom.org http://bb.osmocom.org https://srlabs.de/gprs http://tinyurl.com/gprs-nohl-slides http://www.youtube.com/watch?v=vqjnhKYEDs0 http://patentscope.wipo.int/search/en/WO2008104739 http://www.tombom.co.uk/blog/?p=262 http://www.etsi.org/deliver/etsi_ts/101100_101199/101181/08.05.00_60/ts_101181v080500p.pdf
Ringrazio le community di OpenBTS & Osmocom e tutti i ricercatori che hanno reso le reti cellulari piú
interessanti!
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