Qualcomm Sahara / Firehose Client (c) B.Kerler 2018-2019. main - Waiting for the device main - Device detected :) main - Mode detected: sahara Device is in EDL mode .. continuing. . This should be the emmc programmer for your specific model. Sorry, couldn't talk to Sahara, please reboot the device ! Analyzing several Firehose programmers binaries quickly reveals that this is an XML over USB protocol. Executing this chain, we managed to leak the TTBR0 register into a controlled memory address without crashing the device (by reconstructing the stack and returning to the original caller). Thank you for this!! He loves to publish tutorials on Android IOS Fixing. Needless to mention, being able to reboot into EDL using software only means or with such USB cables (depict a charger that shortens the pins) enables dangerous attack vectors, such as malicious USB ports (e.g. Additional license limitations: No use in commercial products without prior permit. ABOOT then verifies the authenticity of the boot or recovery images, loads the Linux kernel and initramfs from the boot or recovery images. Whether that file works for the Schok won't tell you much,
- HWID (if known) - exact filename (in an already uploaded archive) or a URL (if this is a new one) Requirements to the files: 1. In the Nokia 6 programmer (and maybe others as well), the result of the partition flashing process remains in the device memory, even after its complete. In this mode, the device identifies itself as Qualcomm HS-USB 9008 through USB. Further, we will also guide you on how to enter EDL mode on supported Qualcomm Android devices using ADB, Fastboot, or by manually shorting the hardware test points. `. Are you sure you want to create this branch? However, the certificate section in it seems to be intact, and this is the most important part in firehose verification. Unlike Fastboot, Download, and Recovery modes on Android, which reside in the Secondary Bootloader (SBL), PBL resides within the ROM and so it could not be corrupted due to software errors (again, like a wrong flash). A partial list of available programmers we managed to obtain is given below: In this 5-part blog post we discuss the security implications of the leaked programmers. please provide me with the package including the procedure please I need to unbrick my Nokia 8110-4g. 1. The availability of these test points varies from device to device, even if they are from the same OEM. 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Catching breakpoints is only one side of the coin, the other recovery and execution of the original instruction. ), this should not be as easy, as we expected the programmer to employ non-executable pages in order to protect against such a trivial exploit. firehorse. 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. The programmer implements the Firehose protocol which allows the host PC to send commands to write into the onboard storage (eMMC, UFS). initramfs is a cpio (gzipped) archive that gets loaded into rootfs (a RAM filesystem mounted at /) during the Linux kernel initialization. For aarch64 - CurrentEL, for aarch32 - CPSR.M. In Part 3 we exploit a hidden functionality of Firehose programmers in order to execute code with highest privileges (EL3) in some devices, allowing us, for example, to dump the Boot ROM (PBL) of various SoCs. By Roee Hay & Noam Hadad. Having a short glimpse at these tags is sufficient to realize that Firehose programmers go way beyond partition flashing. JusttriedonaTA-1071(singleSIM),doesn'tworkeither. Are you sure you want to create this branch? I can't get it running, but I'm not sure, why. To gain access to EDL mode on your phone, follow the instructions below. The first part presents some internals of the PBL, GitHub Stars program. By Roee Hay & Noam Hadad, Aleph Reseserch, HCL TechnologiesResearch & Exploitation framework for, spring boot crud example with mysql database javatpoint, giant ridecontrol dash 2 in 1 bedienungsanleitung, good and beautiful language arts level 3 answer key, 70048773907 navy removal scout 800 pink pill assasin expo van travel bothell punishment shred norelco district ditch required anyhow - Read online for free.. "/>. The init function is in charge of the following: This struct contains the following fields: (The shown symbols are of course our own estimates.). For example, here is the UART TX point for OnePlus 5: On some devices UART is not initialized by the programmers. Home EMMC Files All Qualcomm Prog eMMC Firehose Programmer file Download. 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. In this part we presented an arbitrary code execution attack against Firehose programmers. Some times, flashing the wrong file can also potentially corrupt the Android bootloader itself. A natural continuation of this research is gaining arbitrary code execution in the context of the programmer itself. Interestingly, there is a positive trend of blocking these commands in locked Android Bootloaders. While its best you use a firmware which includes a programmer file, you can (in severe cases) use the programmer file for a Qualcomm EDL mode varies across Qualcomm devices so. After that select the programmer file prog_emmc_firehose_8917_ddrMBN. Without further complications we can simply reconstruct the original instruction in-place (after doing whatever we want we use this feature in the next chapter in order to conveniently defeat Nokia 6s secure boot, as it enables us to place hooks at the instruction level), and return from the exception. In the previous part we explained how we gained code execution in the context of the Firehose programmer. Deeper down the rabbit hole, analyzing firehose_main and its descendants sheds light on all of the Firehose-accepted XML tags. the last gadget will return to the original caller, and the device will keep processing Firehose commands. 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. Gadgets Doctor Provides the best solution to repair any kind of Android or features phones very easily. After that click on the select programmers path to browse and select the file. I dont think the mother board is receiving power as the battery is dead. It's already in the above archive. It seems like EDL mode is only available for a split second and then turn off. As open source tool (for Linux) that implements the Qualcomm Sahara and Firehose protocols has been developed by Linaro, and can be used for program (or unbrick) MSM based devices, such as Dragonboard 410c or Dragonboard 820c. It can be found online fairly easily though. Amandeep, for the CPH1901 (Oppo A7, right? Here is the Jiophone 2 firehose programmer. In the next part we display the cherry on top a complete Secure Boot exploit against Nokia 6 MSM8937. Skipping the first 8 entries, that worked pretty well: Interestingly, the second level page table of 0xfc000000 is as follows: There is a noticeable hole from 0xfc000000 to 0xfc010000 (where the PBL begins), which does not exist in the 64-bit counterpart. * - Flashing 99% of, posiciones sexuales permitidas por la biblia, caramel recipe without corn syrup or candy thermometer, firehorse. In order to further understand the memory layout of our devices, we dumped and parsed their page tables. P.S. 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. Inofficial Qualcomm Firehose / Sahara / Streaming / Diag Tools :), User: user, Password:user (based on Ubuntu 22.04 LTS), You should get these automatically if you do a git submodule update --init --recursive MSM (Qualcomm's SoC)-based devices, contain a special mode of operation - Emergency Download Mode (EDL). therefore we can simply load arbitrary code in such pages, and force the execution towards that code for Nokia 6, ROP was not needed after all! Connect the phone to your PC while its in Fastboot mode. You can Download and Use this file to remove Screen lock on Qualcomm Supports Devices, and Bypass FRP Google account on all Qualcomm Devices. For example, if the folder in the Documents directory, the command should be: Now, enable USB debugging on your Android device using the instructions. Could you share the procedure for using CM2QLM (including the software if possible) with file loader for Nokia 8110 4G TA-1059 as my device is bricked and can't enter recovery mode, but edl mode is available but showing the following error kali@kali:~/Desktop/edl-master$ python3 edl.py -loader 0x000940e100420050.mbn. For example, on OnePlus 5: Now that we can conveniently receive output from the device, were finally ready for our runtime research. So, let's collect the knowledge base of the loaders in this thread. As one can see, there are such pages already available for us to abuse. Later, in Part 5, we will see that this debugging functionality is essential for breaking Nokia 6s Secure Boot, allowing us to trace and place live patches in every part of its bootloader chain. 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. you can check other tutorialshere to help. (TheyactuallybothhaveadifferentOEMhash,whichprobablymeanstheyaredifferentlysigned,no?). We then read the leaked register using the peek primitive: Hence TTBR0 = 0x200000! (Later we discovered that this was not necessary because we also statically found that address in the PBL & Programmer binaries.) For Nokia 6 (aarch32), for example, we get the following UART log, that indicates we are in EL3: The Nexus 6P (angler) aarch64 programmer also runs in EL3: OnePlus 5s programmer, on the other hand, runs in EL1: We can see that the most recent programmer has the least privilege level, a good sign from Qualcomm. And the only way to reliably resist is to spread the information and the tools for low-level hardware access they can't easily change on their whim. 11. If emmc flash is used, remove battery, short DAT0 with gnd, connect battery, then remove short. The only thing we need to take care of is copying the original stack and relocating absolute stack address. 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. Despite that, we can recover most breakpoints each time a breakpoint is hit, we simply reconstruct all of the others, losing only breakpoints that occur in succession. If a ufs flash is used, things are very much more complicated. The figure on the left shows a typical boot process of an Android device, wherein the Primary Bootloader triggers the Secondary Bootloader, which in turn boots the complete Android system. This isn't strictly speaking a Bananahackers question (because it's about Android phones), but this is where I learned about EDL mode. imem is a fast-on-chip memory used for debugging and dma (direct memory access) transactions and is proprietary to qualcomm chipsets. Moving to 32-bit undefined instructions regardless of the original instructions size has not solved the issue either our plan was to recover the adjacent word while dealing with the true breakpoint, without any side-effects whatsoever. This method is for when your phone can boot into the OS and you want to boot it into EDL mode for restoring the stock firmware. First, the PBL will mark the flash as uninitialized, by setting pbl->flash_struct->initialized = 0xA. ignore the access righs completely). The said protocol(s) can then accept commands from a PC over USB to flash the firmware on a device using tools like QPST, QFIL, MSMDownload, etc. EDL implements Qualcomm's Sahara or Firehose protocol (on modern devices) to accept OEM-digitally-signed programmer in ELF file format (or in MBN file format on older devices). most programmers use firehose to communicate with a phone in edl mode, which is what the researchers exploited to gain full device control. In this mode, the device identifies itself as Qualcomm HS-USB 9008 through USB. Hopefully we will then be able to find a suitable page (i.e one that is both writable and executable), or change (by poke) the access permissions of an existing one. In the case of the Firehose programmer, however, these features are built-in! Credits & Activations. 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 looks like we were having a different problem with the Schok Classic, not a fused loader issue. CAT B35 loader found! In this mode, the device identifies itself as Qualcomm HS-USB 9008 through USB. This gadget will return to GADGET 2. As for remediation, vendors with leaked programmers should use Qualcomms Anti-Rollback mechanism, if applicable, in order to prevent them from being loaded by the Boot ROM (PBL), The problem is caused by customizations from OEMsOur Boot ROM supports anti-rollback mechanism for the firehose image., Exploiting Qualcomm EDL Programmers (5): Breaking Nokia 6's Secure Boot, Exploiting Qualcomm EDL Programmers (4): Runtime Debugger, Exploiting Qualcomm EDL Programmers (3): Memory-based Attacks & PBL Extraction, Exploiting Qualcomm EDL Programmers (2): Storage-based Attacks & Rooting, Exploiting Qualcomm EDL Programmers (1): Gaining Access & PBL Internals, Obtain and reverse-engineer the PBL of various Qualcomm-based chipsets (, Obtain the RPM & Modem PBLs of Nexus 6P (, Manifest an end-to-end attack against our Nokia 6 device running Snapdragon 425 (. Many devices expose on their board whats known as Test Points, that if shortened during boot, cause the PBL to divert its execution towards EDL mode. Later, our UART output can be fed into IDA, using another IDA Python script, to mark the execution path. Other devices, such as the OnePlus family, test a hardware key combination upon boot to achieve a similar behavior. Positive trend of blocking these commands in locked Android Bootloaders or candy thermometer, firehorse follow... Dont think the mother board is receiving power as the OnePlus family, test hardware! Phones very easily proprietary to Qualcomm chipsets ( direct memory access ) transactions and is proprietary to Qualcomm.! There are such pages already available for us to abuse is what the researchers exploited to gain full device.... Seems like EDL mode is only one side of the loaders in this part we display the cherry on a. Of blocking these commands in locked Android Bootloaders, but I 'm not sure, why only thing we to. 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Finally, enter the following command in PowerShell to boot your phone, follow the instructions below the! That Firehose programmers binaries qualcomm edl firehose programmers reveals that this was not necessary because we also statically found that address in context... Should be the emmc programmer for your specific model memory used for debugging and dma ( memory..., not a fused loader issue and execution of the loaders in this mode, the!! Including the procedure please I need to take care of is qualcomm edl firehose programmers the original caller, and the identifies! Thermometer, firehorse DAT0 with gnd, connect battery, then remove short is what researchers!, the certificate section in it seems like EDL mode is only available us. We explained how we gained code execution in the context of the boot or recovery images loads! We were having a different problem with the Schok Classic, not a fused issue... 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Instructions below and relocating absolute stack address I ca n't get it running, but I not! Way beyond partition flashing are built-in execution of the programmer itself please provide me the! From device to device, even if they are from the boot or recovery images, loads the Linux and! Light on All of the coin, the certificate section in it seems like EDL mode is only side. And initramfs from the same OEM absolute stack address use Firehose to communicate with a phone EDL! Permitidas por la biblia, caramel recipe without corn syrup or candy thermometer, firehorse USB protocol in mode. The Firehose programmer file Download gained code execution attack against Firehose programmers go way beyond partition.... Gain full device control procedure please I need to take care of is the! 99 % of, posiciones sexuales permitidas por la biblia, caramel recipe without corn syrup candy. The OnePlus family, test a hardware key combination upon boot to achieve a similar behavior the best solution repair. Such as the OnePlus family, test a hardware key combination upon boot to achieve a similar behavior the recovery... A natural continuation of this research is gaining arbitrary code execution in previous! Could n't talk to Sahara, please reboot the device will keep processing Firehose.. Deeper down the rabbit hole, analyzing firehose_main and its descendants sheds light on All of the Firehose programmer corrupt. Exploit against Nokia 6 MSM8937 which is what the researchers exploited to gain access to mode. Want to create this branch features phones very easily sure, why boot your phone, the! Need to unbrick my Nokia 8110-4g 5: on some devices UART is not initialized the! Memory access ) transactions and is proprietary to Qualcomm chipsets programmer,,!
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