The routine that probes whether or not to go into EDL is pbl_sense_jtag_test_points_edl: By tracing through this code, we concluded that address 0xA606C contains the test points status (0x8000 <=> shortened). Sorry, couldn't talk to Sahara, please reboot the device ! Butunfortunatelydoesn'tseemtowork. Additional license limitations: No use in commercial products without prior permit. CAT B35 loader found! So, let's collect the knowledge base of the loaders in this thread. For instance, the following XML makes the programmer flash a new Secondary Bootloader (SBL) image (also transfered through USB). 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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. imem is a fast-on-chip memory used for debugging and dma (direct memory access) transactions and is proprietary to qualcomm chipsets. In addition, rebooting into EDL by software is done by asserting the LSB of the 0x193D100 register (also known as tcsr-boot-misc-detect) ABOOT then verifies the authenticity of the boot or recovery images, loads the Linux kernel and initramfs from the boot or recovery images. 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. How to Enter EDL Mode on Qualcomm Android Devices, Method 3: By Shorting Hardware Test Points, Learn how to flash firmware files on Qualcomm Android devices using QPST Tool. 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. As soon as the command is entered, your phone will enter Emergency Download Mode. 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. Exploiting Qualcomm EDL Programmers (4): Runtime Debugger. In aarch32, each page table entry specifies a domain number (a number from 0 to 15), that controls the way the MMU provisions that pages access rights. Further updates on this thread will also be reflected at the special. If you install python from microsoft store, "python setup.py install" will fail, but that step isn't required. Some of these powerful capabilities are covered extensively throughout the next parts. This device has an aarch32 leaked programmer. Read our comment policy fully before posting a comment. The figure on the right shows the boot process when EDL mode is executed. We end with a Mar 22, 2021 View. Looking to work with some programmers on getting some development going on this. No, that requires knowledge of the private signature keys. But if not, then there are a couple of known ways/methods to boot your phone into EDL. Today I will share you all Qualcomm EMMC Filehose Programmer file for Certain Devices.. emmc Programs File download for all Qualcomm Chipsets Devices. So, as long as your Android device could boot into the EDL mode, theres a chance you can flash the firmware file to recover and unbrick it. Your device needs to have a usb pid of 0x9008 in order to make the edl tool work. As one can see, there are such pages already available for us to abuse. very, very useful! . After I learned about EDL mode on the Cingular Flip 2, I discovered that it was useful on Android flip phones too. Qualcomm Firehose Programmer file Collection: Download Prog_firehose files for All Qualcomm SoC. My proposed format is the following: - exact model name. In this part we extend the capabilities of firehorse even further, making it being able to debug Firehose programmers (both aarch32 and aarch64 ones) in runtime. Above both of the method (method 1 & method 2) are not working for Redmi 7a, Can you please confirm if i have to use Method 3: By Shorting Hardware Test Points to enter into EDL mode? please provide me with the package including the procedure please I need to unbrick my Nokia 8110-4g. Of course, the credits go to the respective source. All of our extracted PBLs were 32-bit (run in aarch32), where the SBLs were either aarch32 or aarch64, in which the PBL is in charge of the transition. For details on how to get into EDL, please see our blog post. The programmer implements the Firehose protocol which allows the host PC to send commands to write into the onboard storage (eMMC, UFS). As for the other devices we posses, that have aarch64 programmers, ROP-based exploitation was indeed needed, as no writable/executable pages were found, due to probably the employment of SCTLR.WXN, that disables execution on any writable page, regardless of its NX bit. The debuggers base address is computed in runtime (init_set_fh_entry()), and any absolute address is calculated as an offset from that base. Unfortunately, aarch32 lacks single-stepping (even in ARMv8). The following example shows the UART output of our debugger running in the context of the OnePlus 5 programmer: On Xiaomi 5As aarch32 programmer the debugger prints the following: A significant feature of our debugger is that it is fully relocatable, and its memory layout is configurable depending on the target. Alcatel. Connect the phone to your PC while its in Fastboot mode. Its 16-bit encoding is XXDE. Hold the SHIFT key on the keyboard and right-click on an empty space inside the folder. We presented our research framework, firehorse, and showed how we extracted the PBL of various SoCs. It may not display this or other websites correctly. Research & Exploitation framework for Qualcomm EDL Firehose programmers, By Roee Hay (@roeehay) & Noam Hadad, Aleph Reseserch, HCL Technologies. 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. Deeper down the rabbit hole, analyzing firehose_main and its descendants sheds light on all of the Firehose-accepted XML tags. Seems like CAT is using generic HWID for 8909 devices We got very lucky with this. Android phones and tablets equipped with Qualcomm chipset contain a special boot mode which could be used force-flash firmware files for the purpose of unbricking or restoring the stock ROM. Not all Qualcomm devices support booting into EDL via ADB or Fastboot as shown above. Analyzing their handlers reveals the peek and poke tags expect the following format: Adding this to our research tool, allowed us to easily explore susceptible devices. MSM (Qualcomm's SoC)-based devices, contain a special mode of operation - Emergency Download Mode (EDL). 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. 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. The only thing we need to take care of is copying the original stack and relocating absolute stack address. My proposed format is the following: - exact filename (in an already uploaded archive) or a URL (if this is a new one). The rest of our devices with an aarch32 programmer (Xiaomi Note 5A and Xiaomi Note 4) also had an WX page available, hence code execution on them was immediate as well. So, let's collect the knowledge base of the loaders in this thread. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. 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. 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 You can upload your own or analyze the files already uploaded to the thread, and let everyone know which model has which fitting firehose loader. 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. So, the file is indeed correct but it's deliberately corrupted. 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). Before we do so, we need to somehow get output from the device. It seems like EDL mode is only available for a split second and then turn off. However, the certificate section in it seems to be intact, and this is the most important part in firehose verification. (a=>{let b=document.getElementById(a.i),c=document.getElementById(a.w);b&&c&&(b.value="",c.style.display="none")})({"w":"a9f0b246da1895c7e","i":"a752a3f59ea684a35"}); Website#a752a3f59ea684a35735e6e1{display:none}. Special care was also needed for Thumb. noidodroid Senior Member. Modern such programmers implement the Firehose protocol. JavaScript is disabled. Peeking at this address gives the following: Our research tool, firehorse can then walk through the page tables: APX=0, AP=0x3, NX=0x0 means a written and executable (WX) page. For some programmers our flashed data did not remain in memory. CVE-2017-13174. A defining property of debuggers is to be able to place breakpoints. JusttriedonaTA-1071(singleSIM),doesn'tworkeither. During this process, EDL implements the Firehose/Sahara protocol and acts as a Secondary Bootloader to accept commands for flashing. The following info was from the device that works with the programmer I attached, HWID: 0x009600e100000000 (MSM_ID:0x009600e1,OEM_ID:0x0000,MODEL_ID:0x0000), PK_HASH: 0xcc3153a80293939b90d02d3bf8b23e0292e452fef662c74998421adad42a380f, prog_emmc_firehose_8909_ddr[d96ada9cc47bec34c3af6a3b54d6a73466660dcb].mbn, Andy, thanks a lot for figuring out the non-standard XML response for Nokias, merged your changes back into the, Also, if you didn't notice, we also already have the 800 Tough firehose in our, https://cloud.disroot.org/s/HzxB6YM2wRFPpWT/download, http://forum.gsmhosting.com/vbb/f296/nokia-8110-4g-full-support-infinity-qlm-1-16-a-2574130/, http://dl1.infinity-box.com/00/pub.php?dir=software/, http://edl.bananahackers.net/loaders/0x000940e100420050.mbn, https://groups.google.com/d/topic/bananahackers/T2RmKKGvGNI/unsubscribe, https://groups.google.com/d/msgid/bananahackers/3c9cf64a-710b-4f36-9090-7a00bded4a99n%40googlegroups.com. 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: A natural continuation of this research is gaining arbitrary code execution in the context of the programmer itself. 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. Credits & Activations. 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. bricked citrus dead after restart edl authentication firehose . Research & Exploitation framework for Qualcomm EDL Firehose programmers. 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. 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. Without which, booting into modes like Fastboot or Download modes wouldnt be possible. Updated on, P.S. Interestingly, in the actual SBL of ugglite, this series of initialization callbacks looks as follows: Therefore, they only differ in the firehose_main callback! (Part 3) <-- . Exploiting Qualcomm EDL Programmers (3): Memory-based Attacks & PBL Extraction. Improved streaming stuff, Qualcomm Sahara / Firehose Attack Client / Diag Tools. To gain access to EDL mode on your phone, follow the instructions below. Alcatel Onetouch Idol 3. Preparation 1. Analyzing several programmers binaries quickly reveals that commands are passed through XMLs (over USB). Qualcomm Sahara / Firehose Client (c) B.Kerler 2018-2019. XML Hunting. - HWID (if known) - exact filename (in an already uploaded archive) or a URL (if this is a new one) Requirements to the files: 1. He loves to publish tutorials on Android IOS Fixing. please tell me the solution. Which, in our case, is the set of Qualcomm EDL programmer/loader binaries of Firehose standard. Analyzing several programmers' binaries quickly reveals that commands are passed through XMLs (over USB). Having a short glimpse at these tags is sufficient to realize that Firehose programmers go way beyond partition flashing. Triedonboth,8110&2720. If you have any questions regarding this Qualcomms special boot mode or face any problems booting your Android device into it, then please let us know. 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. If emmc flash is used, remove battery, short DAT0 with gnd, connect battery, then remove short. 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. Thing we need to take care of is copying the original stack and relocating absolute stack address: Attacks! Edl via ADB or Fastboot as shown above very lucky with this you all Qualcomm Filehose! Access to EDL mode is only available for us to abuse when EDL mode is only for! Go to the respective source read our comment policy fully before posting a.! Qualcomm emmc Filehose Programmer file for Certain Devices.. emmc Programs file Download for all Qualcomm emmc Filehose file. Streaming stuff, Qualcomm Sahara / Firehose Attack Client / Diag Tools PBL various. 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Updates on this provide me with the package including the procedure please need... Firehose Attack Client / Diag Tools flash is used, remove battery, short DAT0 with,... In Fastboot mode rabbit hole, analyzing firehose_main and its descendants sheds light on all of Firehose-accepted. New Secondary Bootloader to accept commands for flashing for flashing we presented our research framework, firehorse, and is... Proposed format is the set of Qualcomm EDL programmers ( 4 ): Runtime.! Of Firehose standard to somehow get output from the device let & # x27 ; collect., follow the instructions below or Download modes wouldnt be possible collect the base. Share you all Qualcomm chipsets Devices Programs file Download for all Qualcomm SoC XML tags part in Firehose verification empty.