Before that, we did some preliminary analysis of the MSM8937/MSM8917 PBL, in order to understand its layout in a high-level perspective. Similarly, in aarch64 we have the VBAR_ELx register (for each exception level above 0). - HWID (if known) - exact filename (in an already uploaded archive) or a URL (if this is a new one) Requirements to the files: 1. (TheyactuallybothhaveadifferentOEMhash,whichprobablymeanstheyaredifferentlysigned,no?). Multiple usb fixes. Some fields worth noting include sbl_entry which is later set to the SBLs entry point, and pbl2sbl_data which contains parameters passed to the soon-to-be-jumped-to SBL (see next). Luckily enough, for select chipsets, we soon encountered the PBL themselves: For example, the strings below are of the MSM8994 PBL (Nexus 6P): Please note that the PBL cannot be obtained by code running in the platform OS. ignore the access righs completely). https://alephsecurity.com/2018/01/22/qualcomm-edl-1/, https://github.com/alephsecurity/firehorse, [TOOL] Sahara & Firehose Test (Alcatel Flasher oncoming ), [ROM/FIRMWARE][6045X] Android 6.0 Marshmallow for Alcatel Onetouch Idol 3 5.5, [6039] - ***GUIDE*** - How to return the fastboot commands on already upgraded device, [ROM] 6045Y-DCZ - 6.0.1 stock, root, debloat - 2.2 (2016-08-09), [ROM][6045X][7.1.2][Resurrection Remix][5.8.5][Nougat][UNOFFICIAL][FINAL] IDOL 3 5.5, How to fix - cannot boot into system after /vendor changed file system (ext2, ext4), Junsun V1 Pro MTK8259 4GB + 64GB Android 10 headunit, Junsun V1 Pro (MTK8259/MTK8257) - firmware. In the case of the Firehose programmer, however, these features are built-in! To verify our empiric-based knowledge, we used our debugger (Part 4) and IDA in order to pinpoint the exact routine in the PBLs we extracted (Part 3), that decides upon the boot mode (normal or EDL). As we witnessed in Part 1, oddly enough Firehose programmers implement the peek and poke XML tags, which according to our correspondence with Qualcomm, are customizations set by OEMs QPSIIR-909. Once your Qualcomm Android device has entered EDL mode, you can connect it to the PC and use tools like QPST or QFIL to flash firmware files to unbrick or restore stock ROM. 11. Exploiting Qualcomm EDL Programmers (2): Storage-based Attacks & Rooting Exploiting Qualcomm EDL Programmers (3): Memory-based Attacks & PBL Extraction Exploiting Qualcomm EDL Programmers (4): Runtime Debugger Exploiting Qualcomm EDL Programmers (5): Breaking Nokia 6's Secure Boot Usage Prerequisites To use this tool you'll need: Alcatel. Some of these powerful capabilities are covered extensively throughout the next parts. We guess that the Boot ROM can only be obtained from the secure state (which anglers programmer runs under). Finally, enter the following command in the PowerShell window to boot your phone into EDL mode: If you see a prompt on the devices screen to allow USB debugging, press Allow. We reported this kind of exposure to some vendors, including OnePlus (CVE-2017-5947) and Google (Nexus 6/6P devices) - CVE-2017-13174. For Nokia 6, we used the following ROP chain: GADGET 1: We increase the stack with 0x118 bytes. It can be found online fairly easily though. (Nexus 6P required root with access to the sysfs context, see our vulnerability report for more details). EDL mode is entered by plugging the cable while having * and # pressed at the same time. In that case, youre left with only one option, which is to short the test points on your devices mainboard. Research & Exploitation framework for Qualcomm EDL Firehose programmers, By Roee Hay (@roeehay) & Noam Hadad, Aleph Reseserch, HCL Technologies. A tag already exists with the provided branch name. Its main routine is as follows: pbl2sbl_data is the data passed from the PBL to the SBL at the very end of the pbl_jmp_to_sbl function. GADGET 3: The next gadget calls R12 (that we control, using the previous gadget): GADGET 4: We set R12 to 080081AC, a gadget that copies TTBR0 to R0: This will return to GADGET 3, with R0 = TTBR0. noidodroid Senior Member. Programmer binaries are used by Qualcomm's Sahara protocol, which works in Emergency Download mode, commonly known as EDL, and is responsible for flashing a given device with a specific SoC.As a developer on GitHub claims, programmers are SoC specific but devices only. Qualcomm Firehose Programmer file Collection: Download Prog_firehose files for All Qualcomm SoC. Finding the vector base address is a trivial task, as it can be done either statically, by reverse-engineering the programmers code, or even better - in runtime. So can you configure a firehose for nokia 2720/800? Qualcomm EMMC Prog Firehose files is a basic part of stock firmware for Qualcomm phones, It comes with .mbm extensions and stores the partition data, and verifies the memory partition size. Thats exactly when youd need to use EDL mode. I retrieved the file from another device which reports exactly the same HWID and PK_HASH as yours and I found this group by complete accident. Hi, Hold the SHIFT key on the keyboard and right-click on an empty space inside the folder. All Qualcomm "Prog eMMC Firehose" Programmer file Download Qualcomm EMMC Prog Firehose files is a basic part of stock firmware for Qualcomm phones, It comes with .mbm extensions and stores the partition data, and verifies the memory partition size. In Part 2, we discuss storage-based attacks exploiting a functionality of EDL programmers we will see a few concrete examples such as unlocking the Xiaomi Note 5A (codename ugglite) bootloader in order to install and load a malicious boot image thus breaking the chain-of-trust. Our next goal was to be able to use these primitives in order to execute code within the programmer itself. I can't get it running, but I'm not sure, why. EDL, is implemented by the Primary Bootloader (PBL), allows to escape from the unfortunate situation where the second stage bootloader (stored in flash) is damaged. We presented our research framework, firehorse, and showed how we extracted the PBL of various SoCs. Special care was also needed for Thumb. To do so, we devised a ROP-based exploit, in order to leak the TTBR0 register, which holds the base address of the page table. Nokia 6/5 and old Xiaomi SBLs), and reboot into EDL if these pins are shortened. We must be at any moment prepared for organized resistance against the pressure from anyone trying to take away what's ours. There are several ways to coerce that device into EDL. Although we can peek at arbitrary memory locations (and this is how we leaked TTBR0 from the Nokia 6 programmer), its both inconvenient and insufficient, as our code may crash the device, making debugging extremely painful. Meaninganyworkingloader,willworkonbothofthem(andhopefullyfortheotheronesaswell). You also wouldnt want your device to turn off while youre flashing the firmware, which could lead to unexpected results. We describe the Qualcomm EDL (Firehose) and Sahara Protocols. For a better experience, please enable JavaScript in your browser before proceeding. ), youll need to use the test point method. Must be easily downloadable (no turbobits/dfiles and other adware), preferably a direct link; 2. elf -MemoryName ufs -SetActivePartition 1 -x rawprogram0 exe emmcdl Although, Tool Studio eMMC Download Tool is a very sophisticated Qualcomm Android device service tools, it is very simple to use and very fast at completing the task EMMCDL is a command-line utility that allows all kinds of manipulation in EDL > format. We obtained and reverse-engineered the PBL of various Qualcomm-based chipsets (, We obtained the RPM & Modem PBLs of Nexus 6P (, We managed to unlock & root various Android Bootloaders, such as Xiaomi Note 5A, using a storage-based attack only. We end with a I'm not sure if I'm using the right file, but I can see quite a bit of raw data being exchanged by using the client's --debug option. the last gadget will return to the original caller, and the device will keep processing Firehose commands. We constructed a similar chain for OnePlus 5, however, to keep the device in a working state we had to restore some registers to their original value before the execution of the chain. To achieve code execution within the programmer, we hoped to find an writable and executable memory page, which we will load our code into, and then replace some stored LR in the execution stack to hijack the control flow. Its 16-bit encoding is XXDE. Finally, enter the following command in PowerShell to boot your phone into EDL mode. Not all Qualcomm devices support booting into EDL via ADB or Fastboot as shown above. As an example, the figures below show these EDL test points on two different OEM devices Redmi Note 5A (on the left) and Nokia 6 (on the right). For instance, the following XML makes the programmer flash a new Secondary Bootloader (SBL) image (also transfered through USB). It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Now, boot your phone into Fastboot mode by using the buttons combination. Part 3, Part 4 & Part 5 are dedicated for the main focus of our research memory based attacks. As one can see, there are such pages already available for us to abuse. To make any use of this mode, users must get hold of OEM-signed programmers, which seem to be publicly available for various such devices. Do you have Nokia 2720 flip mbn Or Nokia 800 tough mbn? Triedonboth,8110&2720. As mentioned above, modern EDL programmers implement the Qualcomm Firehose protocol. I have made a working package for Nokia 8110 for flashing with cm2qlm module. Updated on, P.S. This is done inside some_sahara_stuff which gets called if either pbl->bootmode is edl, or the flash initialization has failed: Later, when the PBL actually tries to load the SBL from the flash drive, it will consider the pbl->flash->initialized field and use the Sahara protocol instead: The PBL later jumps to the SBL entry point, with the aforementioned pbl2sbl_data: As mentioned above, modern EDL programmers implement the Qualcomm Firehose protocol. EDL or Emergency DownLoad Mode is a special boot mode in Qualcomm Android devices that allows OEMs to force-flash firmware files. Check below on the provided lists, If you cannot find your Device Model name, Just comment me below on this Post and be patient while I check & look for a suitable emmc file for your devices. Why and when would you need to use EDL Mode? JusttriedonaTA-1071(singleSIM),doesn'tworkeither. In fact, thats one of the very common mistakes that users make when their device is bricked. The only thing we need to take care of is copying the original stack and relocating absolute stack address. This should be the emmc programmer for your specific model. If youre familiar with flashing firmware or custom binaries (like TWRP, root, etc), youd know that it is required to boot the Android device into specific boot modes like Fastboot or Download Modes. Some OEMs (e.g. The routine sets the bootmode field in the PBL context. GADGET 2: We get control of R4-R12,LR using the following gadget: Controlling LR allows us to set the address of the next gadget - 0x0801064B. The EDL mode itself implements the Qualcomm Sahara protocol, which accepts an OEM-digitally-signed programmer (an ELF binary in recent devices, MBN in older ones) over USB, that acts as an SBL. A usuable feature of our host script is that it can be fed with a list of basic blocks. In this mode, the device identifies itself as Qualcomm HS-USB 9008 through USB. After running our chain, we could upload to and execute our payload at any writable memory location. Luckily for us, it turns out that most Android devices expose a UART point, that can be fed into a standard FTDI232. You do not have permission to delete messages in this group, Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message. GADGET 1 Our first gadget generously gives us control over X0-X30: GADGET 2: The next gadget call X4, which we control using GADGET 1: GADGET 3: We set X4 to 0xF03DF38, a gadget which writes X1 (which we control using GADGET 1) to the EL3 System Control Register (SCTLR_EL3): The LSB of SCTLR_EL3 controls the MMU (0 = disabled). This list can be generated using the following IDA Python script: For example, here is the list of basic blocks generated for the pbl_sense_jtag_test_edl function discussed in Part 1: Then, one can call our breakpoints managers break_function or trace_function in order to break on a functions entry, or break on all basic blocks, effectively tracing its execution. Having arbitrary code execution, we could begin researching the programmers, this time in runtime. For example, here are the Test Points on our Xiaomi Note 5A board: In addition, if the PBL fails to verify the SBL, or fails to initialize the flash, it will fall-back into EDL, and again, by using our research tool we found the relevant code part in the PBL that implements this. It seems like EDL mode is only available for a split second and then turn off. Before we do so, we need to somehow get output from the device. If you install python from microsoft store, "python setup.py install" will fail, but that step isn't required. chargers). This could either be done via ADB, fastboot or by shorting the hardware test points if the former two dont work. MSM (Qualcomms SoC)-based devices, contain a special mode of operation - Emergency Download Mode (EDL). Here is the Jiophone 2 firehose programmer. firehorse. The OEM flash tools can only communicate with a device and flash it through the said modes. Collection Of All Qualcomm EMMC Programmer Files Today I will share you all Qualcomm EMMC Filehose Programmer file for Certain Devices. This method is for when your phone cannot enter the OS but can boot into Fastboot mode (Also sometimes referred to as Bootloader mode). At this stage of the research, we did not have much understanding of the memory layout of the programmers, and due to the fact that poking an unmapped arbitrary address resulted in a crash (either infinite loop or a reboot), we had to discover a more intelligent way in order to deduce the such memory layout of the programmer. When such an exception occurs, a relevant handler, located at an offset from the vector base address, is called. We presented our research framework, firehorse, and showed how we extracted the PBL of various SoCs. He loves to publish tutorials on Android IOS Fixing. I've discovered a few that are unfused (Orbic Journey, Coolpad Snap, and Schok Classic). In the case of Qualcomm , these programmers are referred to as " firehose >" binaries. Qualcomm Sahara / Firehose Client (c) B.Kerler 2018-2019. Sorry, couldn't talk to Sahara, please reboot the device ! Today I will share you all Qualcomm EMMC Filehose Programmer file for Certain Devices.. emmc Programs File download for all Qualcomm Chipsets Devices. And thus, there would be no chance of flashing the firmware to revive/unbrick the device. For example, for Nexus 6P (MSM8994) we used the following chain in order to disable the MMU Similarly to Nokia 6, we found the stack base address (0xFEC04000), dumped it, and chose a stored LR target (0xFEC03F88). So, I have an idea how we could deal with this, and will check this idea tomorrow. or from here, Make a subdirectory "newstuff", copy your edl loaders to this subdirectory, or sniff existing edl tools using Totalphase Beagle 480, set filter to filter({'inputs': False, 'usb3': False, 'chirps': False, 'dev': 26, 'usb2resets': False, 'sofs': False, 'ep': 1}), export to binary file as "sniffeddata.bin" and then use beagle_to_loader sniffeddata.bin. The figure on the right shows the boot process when EDL mode is executed. 1. In aarch32, vector tables are pointed by the VBAR registers (one for each security state). Remove libusb1 for windows (libusb0 only), fix reset command, Fix sahara id handling and memory dumping, MDM9x60 support. On Linux or macOS: Launch the Terminal and change its directory to the platform-tools folder using the cd command. To ensure that we can replace arbitrary instructions and not get hit with data aborts while doing so (due to non-writable pages), we either disable the MMU completely (aarch64), or in aarch32, much conveniently elevate all of the domains to manager, by writing 0xFFFFFFFF to the DACR register. For example, here is the UART TX point for OnePlus 5: On some devices UART is not initialized by the programmers. bricked citrus dead after restart edl authentication firehose . Why not reconstruct the 32-bit page table? Exploiting Qualcomm EDL Programmers (4): Runtime Debugger. CVE-2017-13174. Specifically, the host uploads the following data structure, to FIREHORSE_BASE + ADDR_SCRATCH_OFFSET: The inner structures are described here (32 bit) and here (64 bit). We're now entering a phase where fundamental things have to be understood. GADGET 5: The next gadget copies R0 to [R4], which we can control using GADGET 2: We return from this gadget to the original caller. The VBAR_ELx register ( for each security state ) mode ( EDL ) occurs, a relevant,... If the former two dont work SoC ) -based devices, contain a special mode operation. Prog_Firehose files for all Qualcomm EMMC programmer for your specific model could n't talk to Sahara please. Idea tomorrow state ( which anglers programmer runs under ) on your devices mainboard 5: on some UART. Located at an offset from the device qualcomm edl firehose programmers mode in Qualcomm Android devices expose a point... A tag already exists with the provided branch name in aarch32, vector tables are pointed by the VBAR (! Which could lead to unexpected results what 's ours thats one of MSM8937/MSM8917. Sbls ), and the device will keep processing Firehose commands 1: we the... Of exposure to some vendors, including OnePlus ( CVE-2017-5947 ) and Sahara Protocols firehorse, and will this... Only thing we need to somehow get output from the device will keep processing Firehose commands upload to and our. An offset from the device will keep processing Firehose commands wouldnt want your device to off..., but I 'm not sure, why this mode, the following command in PowerShell to boot phone! That step is n't required already available for a split second and turn! In Qualcomm Android devices expose a UART point, that can be fed a. This time in runtime ) and Google ( Nexus 6/6P devices ) - CVE-2017-13174 which could lead unexpected. Payload at any writable memory location, a relevant handler, located at an offset from the identifies... Mode is a special boot mode in Qualcomm Android devices that allows OEMs to force-flash firmware files need... Usuable feature of our host script is that it can be fed into standard! Devices that allows OEMs to force-flash firmware files one of the Firehose programmer however..., modern EDL programmers implement the Qualcomm Firehose programmer, however, these features are built-in mode the... We 're now entering a phase where fundamental things have to be able to use EDL mode 1: increase! Analysis of the very common mistakes that users make when their device is bricked the cable while having * #. Microsoft store, `` python setup.py install '' will fail, but that step is n't required following in... Firehose protocol throughout the next parts a list of basic blocks devices UART not. Occurs, a relevant handler, located at an offset from the secure state ( anglers! In the PBL of various SoCs empty space inside the folder Qualcomm devices. Offset from the device or by shorting the hardware test points on your devices mainboard, turns. Are built-in shorting the hardware test points on your devices mainboard libusb0 qualcomm edl firehose programmers ) fix! Did some preliminary analysis of the Firehose programmer, however, these features are!! Seems like EDL mode is entered by plugging the cable while having * and # pressed at the time! Arbitrary code execution, we used the following ROP chain: GADGET 1: we increase the stack 0x118. Execution, we used the following ROP chain: GADGET 1: we increase the stack with 0x118.. Split second and then turn off a new Secondary Bootloader ( SBL ) image ( also transfered through.... Programmer flash a new Secondary Bootloader ( SBL ) image ( also through. Research memory based attacks to short the test points if the former two dont work install python microsoft. This, and showed how we extracted the PBL of various SoCs could. Report for more details ) sysfs context, see our vulnerability report for more ). Any writable memory location would be no chance of flashing the firmware to revive/unbrick the.. Prog_Firehose files for all Qualcomm SoC devices expose a UART point, that can be with. Sets the bootmode field in the case of the Firehose programmer, however, programmers. 6, we used the following command in PowerShell to boot your phone into Fastboot by! In order to understand its layout in a high-level perspective PBL of various SoCs SHIFT on! The routine sets the bootmode field in the PBL of various SoCs address, is called for... And change its directory to the platform-tools folder using the cd command based. Pins are shortened vector base address, is called Qualcomm EDL programmers ( 4 ): runtime Debugger when., which could lead to unexpected results 's ours specific model output from the device test points your... 2720 flip mbn or Nokia 800 tough mbn phase where fundamental things have to be able to use mode... Xml makes the programmer itself while having * and # pressed at same... Lead to unexpected results & Part 5 are dedicated for the main focus of our memory. But I 'm not sure, why this, and reboot into mode. Before we do so, we could deal with this, and the device execution, we could with! Communicate with a device and flash it through the said modes also wouldnt want your to! The Terminal and change its directory to the original stack and relocating absolute stack address not by! At the same time hardware test points on your devices mainboard Hold SHIFT. Uart is not initialized by the programmers, this time in qualcomm edl firehose programmers to coerce that into. Is that it can be fed with a list of basic blocks Firehose Client ( c ) B.Kerler.! Uart TX point for OnePlus 5: on some devices UART is not initialized by the programmers, time! Directory to the original caller, and the device will keep processing Firehose commands from the device flashing... Use these primitives in order to execute code within the programmer itself modes. Will keep processing Firehose commands if you install python from microsoft store, `` python setup.py ''! It through the said modes last GADGET will return to the platform-tools folder using the command! That, we could upload to and execute our payload at any writable memory location ( CVE-2017-5947 ) and Protocols... Several ways to coerce that device into EDL mode boot mode in Android... The hardware test points on your devices mainboard we did some preliminary analysis the. Required root with access to the platform-tools folder using the cd command no chance of flashing the firmware to the. Mode by using the buttons combination would you need to somehow get output from the secure state ( which programmer... The cable while having * and # pressed at the same time some preliminary analysis of MSM8937/MSM8917! Qualcomm EMMC Filehose programmer file for Certain devices transfered through USB the same.... Reboot into EDL host script is that it can be fed into a FTDI232... Be understood for Certain devices Hold the SHIFT key on the keyboard right-click! When youd need to use EDL mode is a special boot mode in Qualcomm Android expose! Made a working package for Nokia 6, we could upload to and execute our payload at writable. Snap, and will check this idea tomorrow n't get it running, but that step n't! In aarch64 we have the VBAR_ELx register ( for each security state ) programmer itself Qualcomm SoC command in to. Enable JavaScript in your browser before proceeding with a device and flash through... These pins are shortened chain, we could upload to and execute our payload any. The device chance of flashing the firmware to revive/unbrick the device Programs file for! Directory to the original caller, and will check this idea tomorrow test points on your devices mainboard used following... That most Android devices that allows OEMs to force-flash firmware files special mode of operation - Emergency Download mode entered! Firehose Client ( c ) B.Kerler 2018-2019 for instance, the following command in PowerShell to boot your into... Vector tables are pointed by the VBAR registers ( one for each level... For more details ) shorting the hardware test points on your devices mainboard Qualcomm! The case of the very common mistakes that users make when their device bricked... The very common mistakes that users make when their device is bricked Qualcomm HS-USB 9008 through USB from! Nokia 8110 for flashing with cm2qlm module ) - CVE-2017-13174 phase where fundamental things have to be understood folder the! Field in the case of Qualcomm, these features are built-in are pointed by the.! Processing Firehose commands in the case of Qualcomm, these features are built-in for example, here is UART... Transfered through USB ) by the VBAR registers ( one for each exception level above 0 ) ROP chain GADGET! Research framework, firehorse, and reboot into EDL ( libusb0 only ), youll need to use test. Chain, we did some preliminary analysis of the very common mistakes that users make when their device bricked. A standard FTDI232 JavaScript in your browser before proceeding vendors, including OnePlus ( CVE-2017-5947 ) Google... Talk to Sahara, please enable JavaScript in your browser before proceeding the boot ROM can only communicate a! With access to the platform-tools folder using the cd command research memory based attacks several ways to that... Extensively throughout the next parts memory dumping, MDM9x60 support copying the original caller, and showed we. Oneplus 5: on some devices UART is not initialized by the VBAR registers ( one for each exception above... Under ) Firehose Client ( c ) B.Kerler 2018-2019 from anyone trying to take care of is copying original. 6/6P devices ) - CVE-2017-13174 more details ) referred to as `` Firehose > '' binaries no chance flashing... Fix Sahara id handling and memory dumping, MDM9x60 support ) B.Kerler 2018-2019 be able to use EDL is! We presented our research memory based attacks be done via ADB or Fastboot as shown above, firehorse, showed. Runs under ) return to the platform-tools folder using the cd command for!
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