Questions tagged [binary-code]
The binary-code tag has no summary.
59 questions
-1votes
1answer
243views
Confused about memory examination using gdb
I started reading "Hacking, The Art of Exploitation" and I am confused about some things regarding memory examination. When I disassemble main, I get an output of all memories where the ...
0votes
1answer
621views
ROP - ret VS ret 0
I'm doing a binary challenge from pwnable.kr and I'm examining a some ROP gadget. Until now I've always used gadget ending with ret or syscall/int 0x80, but now ROPgadget gave me a gadget ending with ...
- 103
1vote
1answer
553views
How is it possible to simply a decode Bluetooth communications from a medical device?
Excuse the naive question but I'm trying to understand a bit about security in home health and medial devices and a recent report about how home Covid test results can be altered has left me a bit ...
- 333
-1votes
1answer
965views
What can I do with reverse engineering
I have come across a lot of guides and blogs about reverse engineering where they use labs to teach various techniques and methods to break binaries. My question is what actual use cases does reverse ...
0votes
0answers
26views
The difference between a virtual door-lock and a public key [duplicate]
The thing that helped me to understand what is a "public key" was to parallel it with a door lock: The door lock is public in the sense that anyone can try to unlock it and the door key is ...
0votes
1answer
328views
What technologies used in a web browser, if any, can be used to push a binary from a server to a client machine?
This question is about if any technologies used by a web browser (HTTP, TCP, JavaScript, etc.) can be used to push a binary file from the web server to a random folder on the client. This is for a ...
user63673
1vote
1answer
221views
Is there any way to get a unicode character that has a byte of 23?
I am pentesting a web application. It makes a backend call to another application, and I am trying to hijack that call. I have gained control over the URL path, query parameters, and fragment that is ...
- 99
0votes
0answers
506views
Is there any good way to avoid bypass .so file?
I have a C code project, I want to use .so lib to verify certificate for valid. I know there is a way to crack .so file by using below tools: 1.IDA_Pro_v6.8_and_Hex-Rays_Decompiler_ 2.WinHex 3....
- 935
2votes
1answer
425views
Does recompiling a binary from source code make it more secure/obscure?
Using standard hardening options like PIC, Stack Protection ... does a mere recompilation make a program more secure against attacks? You have the source code of a program, compile it two times with ...
0votes
1answer
155views
How can I find out what's in this NASA JPL "Spy" command line program for macOS and how safe it is?
Discussion under this answer in Space Exploration SE links to items in NAIF; NASA Planetary Data System Navigation Node links for MacIntel_OSX_64bit I'm looking at these two. spy: https://naif.jpl....
- 1,409
1vote
0answers
437views
0votes
1answer
121views
Protect password from apache user by making file executable-only
I (will) have a binary executable file. It's only permission is user-execute. It cannot be read by user, group, or world. The owner of the file is the Apache user. I don't want the apache user to be ...
- 105
2votes
0answers
167views
Can binary firmware packages be executed on the system?
Kernels like linux-libre (standard in Debian and other free Linux distributions) ship no binary firmware packages by default. From my limited understanding of their functionality, a binary firmware ...
- 273
1vote
1answer
2kviews
Writing to .fini_array
I'm learning about format string exploits, and am attempting to use one on an example program to overwrite the .fini_array section in virtual memory with a stack address containing shellcode (and ...
9votes
0answers
2kviews
How could I block or at least detect the use of ultrasonic side channels or Google Nearby Messages API on my smartphone?
My question is about the use of ultrasonic messages that are part of the modern advertising ecosystem and are also used by the Google Nearby Messages API. When it comes to advertising, the type of ...
- 483
