I am trying to create a poc in order to

Question

I am trying to create a poc in order to

achieve the following vulnerabilty bug class in my code for my research porpuses based on the top 25 from cwe I got the following list from the most insecure code bug class, how can I implement an Out-of-bounds Read / Out-of-bounds Write in the shown code in order bypass ASLR security via info leaks?

Information leak
Out-of-bounds Read
Use After Free
Integer Overflow or Wraparound
Out-of-bounds Write
Heap overflow
> The only way to reliably bypass DEP and ASLR is through an pointer
> leak. This is a situation where a value on the stack, at a reliable
> location, might be used to locate a usable function pointer or ROP
> gadget. Once this is done, it is sometimes possible to create a
> payload that reliably bypasses both protection mechanisms.

#include <iostream>
using std::cout;
using std::endl;

class A
{
public:
void Func() { cout << "the address is: " << this <<endl; }
};

void Test(void)
{
A *p;

p->Func();

{
A a;
p = &a;
p->Func();
}

p->Func(); //dangling pointer
}

int main()
{
Test();
return 0;
}

0

17.03.2020

1 ответов

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Parra · Accepted Answer

Parra

if you are starting, I think you should avoid aslr first, but if you are interested... check implementations of rop

0

17.03.2020

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