Questions tagged [linux]
A free and open source POSIX compatible operating system with a monolithic kernel and a kernel module system. Originally created by Linus Torvalds.
353
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Check if libc.so use tcache
I have ARM libc.so (GLIBC), How can I check if that libc.so used tcache, and what is the value of arena_max?
Can I check that information offline?
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3
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0
answers
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Setting a breakpoint on a shared library's decompiled exported function, and making Ghidra actually stop on that function when debugging a client code
I am very new to Ghidra, so please accept my apologies if my question sounds too simple. Despite the poor quality of the Internet in my country, I tried my best to find an answer online before asking ...
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2
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1
answer
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How to access files stored in mouse?
I own a Razer Mamba Elite mouse. After plugging it in to the usb port, an software installation window shows up. Basically it's the Razer software to manage device's options such as profiles, macros, ...
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Steghide Linux Steganography how to get "Passphrase"
I am currently on Parrot Linux and have an image has a hidden steganographic inside.
I know I need to decode it with Steghide in the Parrot Terminal.
I also know that I will find out what the hidden ...
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3
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1
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How can I verify section -> segment mapping for ELFs on linux?
I'm looking at at ELF on linux and I have readelf --segments ./myELF which shows:
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
PHDR ...
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How do I install fail2ban to Zyxel nas326
So I just got Zyxel nas326 and I looked from internet how to protect nas from bruteforce attack and I found that fail2ban can protect my nas.
Then I found that I can't download any programs to nas326. ...
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Where can I get source code for ASCII graph parser?
My plan is to see source code graph in vim of doxygen.
I almost use TUI on Linux.
So, Where can I get C, Python based source code for ASCII graph parser?
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0
votes
1
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545
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Output from gcc containing all included source code?
Right now, I'm using a combination of gcc -g and the objdump -S modes to generate assembly code with debug source code interleaved. However, I'm having trouble correlating some of the functions that ...
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4
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1
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How to debug cfg80211.ko
I have an Linux embedded device that I want to debug the cfg80211.ko
I have full root SSH on that device.
How can I debug cfg80211.ko?
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5
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0
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What utilities allow you to debug a process without pausing execution?
I was just reading this answer on StackOverflow, "How can you debug a process using gdb without pausing it?"
The Linux kernel provides some support for this via PTRACE_SEIZE, but gdb doesn'...
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2
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Examining memory without attaching to the process by using /proc/$PID/mem?
I have a gap in my understanding and tooling. Now I would prefer to use Radare2, but will consider any answer. Let's use this program as an example.
#include <stdio.h>
#include <unistd.h>
...
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Patching a B(ranch) causes segfault in ARMv7 binary, while the same patch (with JMP) works on x64 binary
Any ideas why trying to patch a ARMv7 binary causes a segfault while basically the same patch on the Win64 version of the software works as expected?
Here is the Win64 version, that works
UPX0:...
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2
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0
answers
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What hints can x86 disassembly give as to GCC/G++ compiler version and options?
I've taken an interest to disassembling binaries and attempting to recreate 1:1 source code (logic) in C and C++ compiled with GCC. I say "logic" because this question does not pertain to ...
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1
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Load to Ida binary with all of SO
I have a Linux ARM binary with a lot of shared libraries.
Can I load all of them into one IDA instance so that I can easily navigate between functions? For example: functions that the binary calls and ...
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0
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Debugging Windows applications on Linux: Hardware watchpoints and backtracing in IDA not working and winedbg hardware watchpoints borderline unusable?
As in the title. Maybe someone has any experience with this. It's a significant impediment when trying to debug Windows applications on Linux. I find hardware watchpoints, in particular, to be ...
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0
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Extracting ZTE F670L router's config.bin file
I want to enable telnet in my router (ZTE F670L V9.0.11P1N20D), So, I backup my router and i have a file config.bin, Size 23.5KB. I fired up kali and when i issue this command:
$ file config.bin
...
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4
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1
answer
841
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How to use linux .debug file with Ghidra
I have an ELF64 binary that comes with *.sym and .debug. From my understanding this is something akin to PDB. While IDA loads it automatically, it fails to process it. I was wondering if Ghidra will ...
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1
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Need help identifying this SoC
Does anybody know the manufacturer of this ARM CPU / SoC? I cannot find any information about it. I don't even know what the character in front of “Star” means.
“SAV500D” seems to be the model, the ...
- 27
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2
answers
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Run a python in command (kali) with "run" on gdb-peda$
While debugging a program under gdb with gdb-peda installed, I need to pass args to the binary using output from something like python.
Why I am not getting AAAAA?
gdb-peda$ b doSomthing
gdb-peda$ run ...
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1
answer
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how to decrypt zte zxhn h108n V2.5.5_VDFT13 config.bin?
I need the root password from my router. I need to change my snr because my provider had lock it at a high value. I try to decrypt my config.bin file but no result. I try first with zte-config-utility
...
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0
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98
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How to determine file system or open unknown .img file
I have a .img file which will not mount, open, extract or anything within Windows using either the tools built into Windows 10, WinRAR or 7-Zip, they all return errors.
I'm trying to look at data ...
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31
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Using rbreak without import functions
While debugging with GDB I want to break for each function and print the PC register.
rbreak .
define hook-stop
i r $PC
c
end
The problem is that is stop on functions that imported like printf ...
2
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Edit Squashfs filesystem in flash memory
I have read Flash memory and analyze with binwalk and find out Squashfs that I can extract with dd and open with unsquashfs .
When I open this FS I want to add some file into this FS and edit some ...
2
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0
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127
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How can I determine the bluetooth commands needed to communicate with my smart scale via bluetooth using my computer?
I have a Tanita-BC401 smart scale. This scale pairs with the "My Tanita" app via Bluetooth.
I have enabled the "Bluetooth HCI Snoop Log" developer option in my Android phone and ...
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1
answer
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How can I find out the size of heap allocations?
While I debug with GDB I see the address of a buffer that's located on the heap.
How can I know what is the size of this buffer? Or where (in the code) this buffer was originally allocated?
When I ...
2
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0
answers
638
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Passing a String into a Function With GDB
So, I have a function with the prototype according to GDB:
{std::string (std::string)} 0x56027729e545
<function(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator&...
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73
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parallel NAND flash dumped with dd mtd0-12
Hi hope some one can help i have tried dumping nand on a system in u-boot with the dd command so i have mtd0-12 but have now messed up bootloader now i have non booting device/brick. i have tried jtag ...
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Running ELF file built for ARM arhitecture
My goal is to run and debug ELF file (c444) which is compiled for the ARM architecture. I have some experience with x32 and x64 Intel architectures. However, I down know how to proceed with ARM-based ...
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0
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Launching Linux kernel on UART serial interface, but can't login because key-mappings change randomly
I am trying to root an old Linux device I have, it uses the CFE bootloader by Broadcom. I know the username and the password, but something really strange happens when I try to login.
I get a prompt ...
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How to capture control flow pins on emulated serial port?
I am reverse engineering how a CPS software package communicates to a radio device. I have the basics down, and want to trick the software into thinking COM1 is the radio, when in reality I want to ...
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