Market( ) Market 2

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2 Market( ) Market 2

3 DB CVE : Common Vulnerability and Exposures (, MITRE ) Android 187 JVN : Japan Vulnerability Notes (JPCERT/CC, IPA ) Android 103 3

4 Jailbreak root zergrush exploit oneclick tool runme.bat Ø Root Root android PC usb runme.bat android zergrush exploit code root system remount su / busybox system SuperUsr.apk system reboot adb su command id superuser.apk get root!! runme.bat (root oneclick tool ) +files /adb.exe/busybox/su /superuser.apk/zergrush Ø runme.bat zergrush root root 4

5 PC** PC Market /data /system Jailbreak 5

7 Jailbreak root Step1: root Step2: OSroot Step3: rootsu 7

8 OS Security Spiced Android /system /system/bin su 8

9 SEAndroid Security Enhanced Android NSASELinux Android root root LinuxDAC: Discretionary Access Control rwx r-x r-x 755 /data/aaa.txt owner group other root = root SELinuxMAC: Mandatory Access Control) root 9

10 SEAndroid Disable ver4.2 SELinux Android4.3SEAndroid Permissive Mode ver4.3 dmesg or /data/misc/audit/audit.log Enforcing Mode ver4.4 AOSP* master branchenforcing Mode Android Open Source Project 10

11 KDDI Android ARMTPM 2012 Android ARMTPM Android OS Android(ARM), TPM 11

12 SIM SIM/UIM 3GSIM/UIM 12

13 2014ARM SIM/UIM Step5) Step4) SIM/ UIM Linuxinit Step 3) SIM/UIM Android Linuxinit Step 2) LinuxIntramfs SIM/UIM ROMBoot Loader Step 1) SIM/UIM SIM/UIM SIM/UIM ROMBoot Loader 13

14 SIM/UIMLinuxinitramfs Step 1 Step 2 Step 2 14

15 Root of Trust emmc ARM ROM Root of Trust SIM/UIM SIM/UIM SIM/UIM SIM/UIMTPMPCR ARMCPU SIM/UIM 15

16 SIM/UIM SIM/UIM ARM ARMSIM/UIM 16

17 Electric Control Unit ECU Micro Computing Unit MCUController Area Network CAN

18 ?! H/W?! Micro Control Unit(MCU) 2020 NW 18

19 ( ) (), () ( )

20 Renaissance / Renaissance MCU MCU Renaissance 20

21 Web AV CAN LIN RlexRay AVETC GW [] WiFi [] [] [] [(OEM)] 21

22 22

23 Electric Control Unit ECU Micro Computing Unit MCUController Area Network CAN

24 MCU CAN MCU MCU CAN MCU MCU ROM Root of TrustSecure RAM Secure ROM CAN MCU MCU Media Authentication Code MAC hash 24

25 MCU Web AV AVETC CAN LIN RlexRay GW MCU (1) MCU (2) MCU (3) CAN 25

26 Secure RAM/ROM Root of Trust MCU Root of Trust MCU (1) Root of TrustMUCMCU (2) MCUMCU (3) MCU 26

27 MCU MCU Root of TrustBoot Loader Secure ROM Secure RAM Step 0) ROMRoot of TrustBoot Loader Step 1) Boot LoaderFlash Step 2) Secure ROM Step 3) OKBoot Loader Step 4) Boot LoaderRAM HSBV850E2FG4-LCPU 60MHz CPU:TOPPERS/ATK2-SC msec 60KB 27

28 MCU FL-850/F1L-176-S MCU RH850F1L mpumcu/rh850/rh850f1x/rh850f1l/index.jsp CubeSuite+ for V850 =0&keywords=CUBESUITE+for+V850 OS TOPPERS ATK2-SC1 RH

29 MCU MCU MCUMCU MCUMCU 29

30 MAC CAN RAM MAC 30

31 MAC CAN CAN MCU MAC hash MACCANLayer3 CRCLayer2 MAC Inter Frame Space CAN-L2SEC type1 Standard Format (ID 11 bit) Data Frame Inter Frame Space Recessive CRC Delimiter ACK Delimiter idle S O F ID RTR Control Field Data Field 0-8 Bytes CRC MAC ACK Slot E O F ITM idle Dominant IV 64 IDE r d3 d2 d1 d0 Data Length Code / DLC 0 0 Reserved HMAC Data 31

32 MCU TT-01 MCU GW 32 MCUCAN (1) MCU (2) MCU (3) CAN

内閣官房情報セキュリティセンター（NISC）

内閣官房情報セキュリティセンター（NISC） ( ) ...1 1.1.1...1 (1)..1 (2)...1 (3)...1 1.1.2...2 (1)...2 (2)...2 (3)...2 (4)...3 (5)...3 (6)...3 1.1.3...4...10 2.1...10 2.1.1...10...10...10 (1)...10 (2)... 11 (3)... 11 (4)...12 (5)...13 (6)...13