Accelerate3g5 -- blobb » History » Revision 60
Revision 59 (blobb, 04/22/2017 08:42 PM) → Revision 60/153 (blobb, 04/22/2017 09:12 PM)
h1. Accelerate3g5 -- blobb h2. Summary Trying to come up with a fuzzing interface. h3. Participants * André Boddenberg (email: dr.blobb@gmail.com) h2. Details First setting up the femtocell and understand basics of UMTS communication. (almost done, data!) Collecting information e.g. slides, talks, docu about fuzzing of wireless protocols. (done) Writing some code to craft requests and run fuzz tests against subscriber. (tbd) Note: first time fuzzing. h2. Test devices TD1: Samsung Galaxy S5 Mini (G800F) OS: Lineage OS (14.1/7.1.1) BB: G800FXXU1BPC3 SIM: MicroSIM TD2: LG Nexus 5 (hammerhead) OS: Android Marshmallow (6.0) BB: M48974A-2.0.50.2.27 SIM: MicroSIM TD3: HTC One M9 OS: Android Lollipop (5.1) BB: 01.04_U11440601_71.02.50709G_F SIM: NanoSIM (cutted MicroSIM) h2. Journal +_2017-03-07_+ Pick up package at Sysmocom office. Having an informative conversation with Neels about Jenkins, Docker and build artifacts. +_2017-03-12_+ Set up wiki page. Seeing femtocell on network interface. Compiled source as described, but couldn't configure/launch CN successfully (yet). Next time will try Neels' launch script and same IP range. +_2017-03-15_+ Reading "data sheet [overview]":http://www.ipaccess.com/uploads/wysiwyg_editor/files/2017/S8_S16-Datasheet-v1.0.pdf "data sheet [details]":https://fccid.io/pdf.php?id=1462491 about ip.access nano3G S8. Configuring femtocell via telnet (dry run). Running in HLR issue mentioned in wiki when invoking run.sh. +_2017_04-02_+ Collecting input about fuzzing: papers/theses: >"SMS Fuzzing - SIM Toolkit Attack - B. Alecu, defcon21 2013":https://www.defcon.org/images/defcon-21/dc-21-presentations/Alecu/DEFCON-21-Bogdan-Alecu-Attacking-SIM-Toolkit-with-SMS-WP.pdf >"SMS Vulnerability Analysis on Feature Phones - N. Golde, 2011":http://www.isti.tu-berlin.de/fileadmin/fg214/finished_theses/NicoGolde/diplom_golde.pdf >"Fuzzing the GSM Protocol - B. Hond, master thesis 2011":http://www.ru.nl/publish/pages/769526/scriptie-brinio-final-brinio_hond.pdf talks: >"SMS Fuzzing - Sim Toolkit Attack - B. Alecu, Deepsec 2011":http://www.securitytube.net/video/2518 >"Using OpenBSC for fuzzing of GSM handsets - H. Welte, 26c3 2009":http://mirror.fem-net.de/CCC/26C3/mp4/26c3-3535-en-using_openbsc_for_fuzzing_of_gsm_handsets.mp4 slides: >"MobiDeke: Fuzzing the GSM Protocol Stack - S. Dudek & G. Delugr, hack.lu 2012":http://archive.hack.lu/2012/Fuzzing_The_GSM_Protocol_Stack_-_Sebastien_Dudek_Guillaume_Delugre.pdf >"Base Jumping - Attacking the GSM BB and BTS - grugq, 2010":http://conference.hackinthebox.org/hitbsecconf2010kul/materials/D2T1%20-%20The%20Grugq%20-%20Attacking%20GSM%20Basestations.pdf >"Fuzzing your GSM phone - Harald Welte, 26c3 2009":https://events.ccc.de/congress/2009/Fahrplan/attachments/1503_openbsc_gsm_fuzzing.pdf >"Fuzzing the Phone in your Phone - C. Miller & C. Mulliner, Blackhat 2009":https://engineering.purdue.edu/dcsl/reading/2011/jevin-fuzzing.pdf >"Injecting SMS Messages into Smart Phones for Security Analysis - C. Mulliner, 2009":https://www.mulliner.org/security/sms/feed/injecting_sms_mulliner_miller.pdf >"Security Testing esp. Fuzzing - E. Poll, ????":https://www.cs.ru.nl/E.Poll/ss/slides/12_Fuzzing.pdf +_2017-04-19_+ Resolving HLR issue and set correct IPs in "*.cfg files":https://osmocom.org/attachments/download/2559/3G-config-example-v3.tar. hNodeB connects to hnbgw, but no UE is connecting to it. > [issue from wiki: ...unable to resolve DNS record look up of 0.ipaccess.pool.ntp.org... no trx]. Connect femtocell to LAN with internet access to resolve DNS record look up issue, still no phones are connecting (yet). Adding SIM cards to hlr.db, after creating db successfully [thanks to "andreas":https://osmocom.org/projects/cellular-infrastructure/wiki/Accelerate3g5_--_andreas] +_2017-04-20_+ Rebuild with correct branch/tag (openbsc:vlr_3G,libosmo-sccp:old_sua). Create and attach "build_3G.sh":https://osmocom.org/attachments/download/2602/build_3G.sh (adapted from "build_2G.sh":https://osmocom.org/attachments/download/2438/build_2G.sh). TD1 and TD2 *successfully connected* to femtocell!!! *\o/* TD3 gets IP address but can not be called. *TODO*: investigate with wireshark Voice calls work (TD1<->TD2). Data is not working *TODO*: make it work =) +_2017-04-22_+ Create and attach "configure_nano3G.exp":https://projects.osmocom.org/attachments/download/2604/configure_nano3G.exp. Invoke scrip Script should be invoked within "run.sh":https://projects.osmocom.org/attachments/download/2559/3G-config-example-v3.tar to automate nano3G configuration. [line ~53]. SMS works (TD1<->TD2). h2. Conclusions - UE's are connecting and voice calls are working. >- network LED does not indicate whether IP has been assigned by DHCP server. >- umts LED does indicate whether cell is connected to hnbgw, etc pp.
