Collaborate Disseminate
I am learning about stack overflows and its exploitation , but during my journey i’m stuck!
I am trying to generate shellcode for a call instruction, but it seems that same call instructon to the system() function generates different machi… Continue reading Why the same call instruction in assembly generates different machine code? [closed]
We all probably know that for ultimate control and maximum performance, you need assembly language. No matter how good your compiler is, you’ll almost always be able to do better by using your human smarts to map your problem onto a computer’s architecture. Programming in assembly for PCs though is …read more
We love the simplicity of Arduino for focused tasks, we love how Raspberry Pi GPIO pins open a doorway to a wide world of peripherals, and we love the software ecosystem of Intel’s x86 instruction set. It’s great that some products manage to combine all of them together into a …read more
Continue reading Odyssey Is A x86 Computer Packing An Arduino Along For The Trip
At its annual World Wide Developer Conference, Apple dropped many jaws when announcing that their Mac line will be switching away from Intel processors before the year is out. Intel’s x86 architecture is the third to grace Apple’s desktop computer products, succeeding PowerPC and the Motorola 68000 family before it. …read more
If you have worked for a large company — or even a small one — it might seem that you spend more time writing PowerPoint charts than programming. [Tom Widenhain’s] video asks the question: Can we compile C into PowerPoint? Watch the video below to find out the answer. Would …read more
From my understanding this does a chown(NULL) then chmod 3565
and lastly a SYS_exit
the code is from here https://www.win.tue.nl/~aeb/linux/hh/ptrace-kmod-exploit.c
jmp short loc_23
I am trying to complete level 3 of buffer bomb lab. The task is to supply an exploit string that will cause getbuf to return my cookie (0x4b64b076) back to test, rather than the value 1. The exploit code should set the cookie as the return… Continue reading Buffer bomb level 3 – Prevent stack corruption
Last year, fabless chip maker Zhaoxin announced they were readying a multicore x86-compatible CPU. According to media reports, the chips are showing up on Chinese marketplaces like Taobao shipping around March.
The company is a joint venture between the Shanghai Municipal Government and VIA Technologies, a familiar name in the …read more
They say that in order to understand recursion, you must first understand recursion. Once you master that concept, you might decide that it’s time to write your own compiler that can compile itself as a fun side project. According to [Warren] aka [DoctorWkt], who documented every step of writing this …read more
Continue reading All You’ve Ever Wanted to Know about Compilers
We will admit it: mostly when we see a homebrew CPU design on an FPGA, it is a simple design that wouldn’t raise any eyebrows in the 1970s or 1980s. Not so with [Henry Wong’s] design, though. His x86-like design does superscalar out-of-order execution, just like big commercial modern CPUs. …read more