Aggiornamenti recenti Ottobre 9th, 2024 9:00 AM
Ago 13, 2018 Marco Schiaffino In evidenza, News, RSS, Vulnerabilità 0
Di solito, quello delle vulnerabilità in Android è uno stillicidio che accompagna gli esperti di sicurezza con inesorabile regolarità e frequenza. Questa volta, però, i ricercatori di Kryptowire hanno scaricato sul mondo Android una vagonata di falle di sicurezza senza precedenti.
Il bilancio complessivo è di 47 vulnerabilità che interessano 25 modelli di smartphone. Tra i produttori, oltre ai soliti “piccoli”, ci sono anche attori di primo piano del settore come Asus; LG; Nokia; Sony e ZTE.
Nel mirino degli analisti sono finite funzionalità del firmware, app preinstallate e tutta una serie di strumenti e funzioni che mettono seriamente a rischio la sicurezza dei dispositivi in questione.
Nell’elenco si trova un po’ di tutto: dalla possibilità di estrarre gli SMS dal dispositivo attraverso un’app (oltre che inviarli e modificarli senza che sia necessario alcun permesso) alla possibilità di catturare periodicamente schermate, passando per la cancellazione di tutti i dati dell’utente senza che sia necessaria alcuna interazione “umana”.
Per gli appassionati del genere, riassumiamo la galleria degli orrori (consultabile anche sul sito di Kryptowire in un poco pratico database interattivo) nella tabella qui sotto.
Produttore | Modello | Versione OS | Descrizione | Requisito per l’attacco |
Build Fingerprint |
ZTE | ZMAX Pro | 6.0.1 | Send text messages | Local app on the device without any permissions | ZTE/P895T20/urd:6.0.1/MMB29M/20170418.114928:user/release-keys |
ZTE | ZMAX Pro | 6.0.1 | Obtain all the text messages of the user and also insert, modify, and delete text messages | Local app on the device without any permissions | ZTE/P895T20/urd:6.0.1/MMB29M/20170418.114928:user/release-keys |
ZTE | ZMAX Champ | 6.0.1 | A pre-installed app allows any app on the device to cause the device to get stuck in an unfixable recovery bootloop. | Local app on the device without any permissions | ZTE/Z917VL/fortune:6.0.1/MMB29M/20170327.120922:user/release-keys |
ZTE | ZMAX Champ | 6.0.1 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device without any permissions | ZTE/Z917VL/fortune:6.0.1/MMB29M/20170327.120922:user/release-keys |
ZTE | ZMAX Pro | 6.0.1 | Obtain the numbers of contacts and numbers of people that the user has texted | Local app on the device without any permissions | ZTE/P895T20/urd:6.0.1/MMB29M/20170418.114928:user/release-keys |
ZTE | Blade Spark | 7.1.1 | Obtain the logcat log which get written to the sdcard. This can be mined for user data. This does leave a sticky notification. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | ZTE/Z971/peony:7.1.1/NMF26V/20171129.143111:user/release-keys |
ZTE | Blade Vantage | 7.1.1 | A pre-installed app allows any app on the device to make the system write the modem log to the sdcard. This contains the send and received text messages and the call data. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | ZTE/Z839/sweet:7.1.1/NMF26V/20180120.095344:user/release-keys |
Vivo | V7 | 7.1.2 | Record the screen and write it to app’s private directory. A notification and floating icon pop up initiatlly, but these can be quickly removed. | Local app on the device that does not require any permissions | vivo/1718/1718:7.1.2/N2G47H/compil11021857:user/release-keys |
Vivo | V7 | 7.1.2 | Obtain the kernel log and also the logcat log which get written to the sdcard. This can be mined for user data. This does leave a sticky notification. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | vivo/1718/1718:7.1.2/N2G47H/compil11021857:user/release-keys |
Vivo | V7 | 7.1.2 | Provides the capability to set system properties as the com.android.phone user. With this and vulnerability above, you can caputre the input of the user (where they touch the screen) and the bluetooth snoop log. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | vivo/1718/1718:7.1.2/N2G47H/compil11021857:user/release-keys |
Sony | Xperia L1 | 7.0 | Take screenshot of the screen which can be used to examine the user’s notifications. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard and the EXPAND_STATUS_BAR permission is needed to expand the status bar | Sony/G3313/G3313:7.0/43.0.A.6.49/2867558199:user/release-keys |
SKY | Elite 6.0L+ | 6.0 | Command execution as the system user via old version of Adups software | Local app on the device that does not require any permissions | SKY/x6069_trx_l601_sky/x6069_trx_l601_sky:6.0/MRA58K/1482897127:user/release-keys |
Plum | Compass | 6.0 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device that does not require any permissions | PLUM/c179_hwf_221/c179_hwf_221:6.0/MRA58K/W16.51.5-22:user/release-keys |
Orbic | Wonder | 7.1 | Pairing with the vulnerability above, the user can get the body of text messages and call data since the default messaging apps is in debug mode, so the telephony data is written to the log. The log is written to the sdcard so any app can use the vulnerability above to get this data. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | Orbic/RC555L/RC555L:7.1.2/N2G47H/329100b:user/release-keys |
Orbic | Wonder | 7.1.2 | A pre-installed app allows the user to obtain the logcat log that get written to the sdcard continuosly. The logcat log is not available to third-party apps since it contains sensitive user data. The user can start the app with so it will not show up in the recent apps list and then dismiss it by going to the home screen so it will not be accessible to the user. It will continuosly write the log file to the sdcard. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | Orbic/RC555L/RC555L:7.1.2/N2G47H/329100b:user/release-keys |
Orbic | Wonder | 7.1.2 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device that does not require any permissions | Orbic/RC555L/RC555L:7.1.2/N2G47H/329100b:user/release-keys |
Oppo | F5 | 7.1.1 | Surreptitiously audio record the user and write it to the sdcard. This does require the command execution as system user to copy the recording file. | Local app on the device without any permissions | OPPO/CPH1723/CPH1723:7.1.1/N6F26Q/1513597833:user/release-keys |
Oppo | F5 | 7.1.1 | Command execution as the system user | Local app on the device without any permissions | OPPO/CPH1723/CPH1723:7.1.1/N6F26Q/1513597833:user/release-keys |
Nokia | 6 TA-1025 | 7.1.1 | Take screenshot of the screen which can be used to examine the user’s notifications. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard and the EXPAND_STATUS_BAR permission is needed to expand the status bar | Nokia/TA-1025_00WW/PLE:7.1.1/NMF26F/00WW_3_32F:user/release-keys |
MXQ | TV Box | 4.4.2 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device that does not require any permissions | MBX/m201_N/m201_N:4.4.2/KOT49H/20160106:user/test-keys |
MXQ | TV Box | 4.4.2 | Make the device non-functional. The device will not boot properly even after a factory reset. The device can likely be recovered by placing clean firmware images on the sdcard and flashing them. | Local app on the device that does not require any permissions | MBX/m201_N/m201_N:4.4.2/KOT49H/20160106:user/test-keys |
LG | G6 | 7.0 | Can lock a user out of their own phone (even in safe mode) and the user will be forced to factory reset in recovery mode. The user may be able to unlock the device if they have ADB enabled prior to the locking of the screen and can figure out how to unlock it hich may be difficult for the average user. This acts as a Denial of Service attack and results in data loss if a factory reset occurs. | Local app on the device that does not require any permissions | lge/lucye_nao_us_nr/lucye:7.0/NRD90U/17265155644e4:user/release-keys |
LG | G6 | 7.0 | Obtain the logcat logs continuosly which are not available to third party apps since they leak senstive user data. The log file can be written to the app’s private directory by using path traversal. | Local app on the device and INTERNET permission to send out the data. | lge/lucye_nao_us_nr/lucye:7.0/NRD90U/17265155644e4:user/release-keys |
LG | G6 | 7.0 | Obtain the kernel log and also the logcat log which get written to the sdcard. This can be mined for user data. It also creates a file on the sdcard containing the phone IMEI and serial number. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | lge/lucye_nao_us_nr/lucye:7.0/NRD90U/17265155644e4:user/release-keys |
Leagoo | Z5C | 6.0 | Read the last text message from each conversation. The last message will containt the phone number, text body, timestamp, and the contact’s name (if any) | Local app on the device that does not require any permissions | sp7731c_1h10_32v4_bird:6.0/MRA58K/android.20180125.183848:user/release-keys |
Leagoo | P1 | 7.0 | Take screenshot of the screen which can be used to examine the user’s notifications. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard and the EXPAND_STATUS_BAR permission is needed to expand the status bar | LEAGOO/t592_otd_p1/t592_otd_p1:7.0/NRD90M/1508151212:user/release-keys |
Leagoo | P1 | 7.0 | Local root privilege escalation via ADB. The vendor allows read only properties to be modified. They could also peform this behavior to get root privileges. | Physical access to device | LEAGOO/t592_otd_p1/t592_otd_p1:7.0/NRD90M/1508151212:user/release-keys |
Leagoo | P1 | 7.0 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device that does not require any permissions | LEAGOO/t592_otd_p1/t592_otd_p1:7.0/NRD90M/1508151212:user/release-keys |
Leagoo | Z5C | 6.0 | Send text messages | Local app on the device that does not require any permissions | sp7731c_1h10_32v4_bird:6.0/MRA58K/android.20180125.183848:user/release-keys |
Leagoo | Z5C | 6.0 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device that does not require any permissions | sp7731c_1h10_32v4_bird:6.0/MRA58K/android.20180125.183848:user/release-keys |
Essential | Essential | 7.1.1 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device that does not require any permissions | essential/mata/mata:7.1.1/NMJ88C/464:user/release-keys & essential/mata/mata:8.1.0/OPM1.180104.166/297:user/release-keys |
Doogee | X5 | 6.0 | Video record of the screen. This capability can be used in a similar way as taking screenshots by opening apps that show the user’s messages. The recording is not transparent to the user. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard and the INTERNET permission to send out the data | DOOGEE/full_hct6580_weg_c_m/hct6580_weg_c_m:6.0/MRA58K/1479906828:user/test-keys |
Coolpad | Revvl Plus | 7.1.1 | Obtain all the text messages of the user and also insert, modify, and delete text messages | Local app on the device without any permissions | Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys |
Coolpad | Canvas | 7.0 | Provides the capability to set system properties as the com.android.phone user. | Local app on the device without any permissions | Coolpad/cp3636a/cp3636a:7.0/NRD90M/093031423:user/release-keys |
Coolpad | Defiant | 7.1.1 | Send text messages | Local app on the device without any permissions | Coolpad/cp3632a/cp3632a:7.1.1/NMF26F/099480857:user/release-keys |
Coolpad | Revvl Plus | 7.1.1 | Provides the capability to set system properties as the com.android.phone user. | Local app on the device without any permissions | Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys |
Coolpad | Revvl Plus | 7.1.1 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device without any permissions | Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys |
Coolpad | Revvl Plus | 7.1.1 | Send text messages | Local app on the device without any permissions | Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys |
Coolpad | Canvas | 7.0 | Obtain the logcat logs, kernel logs, and tcpdump capture which are written to the sdcard. This leaves a notification active. The logs contain the body of sent and received text messages. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | Coolpad/cp3636a/cp3636a:7.0/NRD90M/093031423:user/release-keys |
Coolpad | Defiant | 7.1.1 | A pre-installed app allows any app on the device to wipe all user data via a factory reset. There is no user intervention required and it will result in data loss. | Local app on the device without any permissions | Coolpad/cp3632a/cp3632a:7.1.1/NMF26F/099480857:user/release-keys |
Coolpad | Defiant | 7.1.1 | Obtain all the text messages of the user and also insert, modify, and delete text messages | Local app on the device without any permissions | Coolpad/cp3632a/cp3632a:7.1.1/NMF26F/099480857:user/release-keys |
Asus | ZenFone 3 Max | 7.0 | A pre-installed app with an exposed interface allows any app on the phone to obtain a bugreport (kernel log, logcat log, dump of system services (includes text of active notifications), WiFi Passwords, and other system data gets written to the sdcard. The numbers for received and placed telephone calls show up in the log, as well as the sending and receving telephone numbers for text messages. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard | asus/US_Phone/ASUS_X008_1:7.0/NRD90M/US_Phone-14.14.1711.92-20171208:user/release-keys |
Asus | ZenFone 3 Max | 7.0 | Arbitrary app installation over the internet. Then this app can also be uninstalled after it is run using the same interface. | Local app on the device without any permissions | asus/US_Phone/ASUS_X008_1:7.0/NRD90M/US_Phone-14.14.1711.92-20171208:user/release-keys |
Asus | ZenFone 3 Max | 7.0 | Take screenshot of the screen which can be used to examine the user’s notifications. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard and EXPAND_STATUS_BAR permission is needed to expand the status bar | asus/US_Phone/ASUS_X008_1:7.0/NRD90M/US_Phone-14.14.1711.92-20171208:user/release-keys |
Asus | ZenFone 3 Max & ZenFone V Live | 7.0 | Command execution as the system user | Local app on the device without any permissions | asus/US_Phone/ASUS_X008_1:7.0/NRD90M/US_Phone-14.14.1711.92-20171208:user/release-keys & asus/VZW_ASUS_A009/ASUS_A009:7.1.1/NMF26F/14.0610.1709.56-20171017:user/release-keys |
Alcatel | A30 | 7.0 | Take screenshot of the screen which can be used to examine the user’s notifications. | Local app on the device with the READ_EXTERNAL_STORAGE permission to read from the sdcard and the EXPAND_STATUS_BAR permission is needed to expand the status bar | TCL/5046G/MICKEY6US:7.0/NRD90M/J63:user/release-keys |
Alcatel | A30 | 7.0 | Local root privilege escalation via ADB. The vendor allows read only properties to be modified. They could also peform this behavior to get root privileges. This was an Amazon Prime exclusive device. | The user needs physical access to the device and needs to bypass the screen-lock if it exists | TCL/5046G/MICKEY6US:7.0/NRD90M/J63:user/release-keys |
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