Address Space Layout Randomisation (ASLR) is a technology used to help prevent shellcode from being successful. It does this by randomly offsetting the location of modules and certain in-memory structures.

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When is memory allocation/layout deterministic?

I'm trying to learn about buffer overflow attacks, both on the stack and on the heap. However, I'm confused about when it's possible to determine the address of the buffer. The classic "Smashing the ...
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Limited Buffer Size for shellcode on 64 bits machine

This question bother me for so long and I hope someone can give me an answer for that. I have a code snippet which have the classic strcpy vulnerability int main(int argc, char argv[][]){ char ...
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Buffer overflow and register contents?

I am doing an exam practice question, suppose I have a function like; void func(char* arg) { char buf[32]; strcpy(buf, arg); } command break func: -buf begins at 0xbffebfb0 -(gdb) x/2wx ...
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how does ASLR prevent return to libc / ROP and similar attacks?

I am trying to understand ASLR and how it is implemented. I understand it does not actually "prevent" buffer overflow etc from happening, it will only make it more difficult. But i am not able to ...