Questions tagged [stack-overflow]

Question 1

In this topic, 'be vulnerable to stack overflow attack' actually refer to an attacker manipulating the return address of a function to perform a control flow hijacking. Smashing the stack by ...

Question 2

I’ve been diving into the world of buffer overflow vulnerabilities and their exploitation, which has been both challenging and fascinating. However, I’ve recently hit a mental roadblock and would love ...

Question 3

I'm trying to overwrite the return address caused by a buffer overflow. I've already calculated the distance between the buffer and the return address. The address that I want to jump to is ...

Question 4

#include <stdio.h> #include <stdlib.h> void reading(); void reading_hexa(char*); void secret(); int main() { reading(); printf("Input done\n"); exit(0); } void ...

Question 5

So I try to understand stack based buffer-overflow but now I am stuck. This is the vulnerable function (32 bit ELF). int test(char* input) { char buf[100]; printf("Buffer is at %p\n",...

Question 6

I have heard that DDoS and DoS attacks work most of the time and that they are used when SQL insertion and other methods fail. I know Stack Exchange has a lot of programmers, and that they have this ...

Question 7

I'm trying to understand why stack canaries are not enabled by default. It makes sense to me that they should be, given the interest in security? https://stackoverflow.com/questions/49693870/stack-...

Question 8

I have the following problem: I have this C program and I have done buffer overflow using ROP gadgets. I have a problem with the output. I want to stop the printf() call in the vuln function to get ...

Question 9

I tried to google this topic but most of them are conflicting each other. On the other side, I found a case where I can use either stack (local variable) or heap for a dynamic string. It's C by the ...

Question 10

I'm stuck on the Heap1 challenge from Exploit Education. After compiling the source code in a 64bit system, without any security mechanism, I try to overflow the heap in order to overwrite the main ...

Question 11

I was practicing stack buffer exploitation on a well known application I was able to bypass canaries, ASLR and nx bit with techniques easily found on the internet However it has fortify-source enabled ...

Question 12

According to this paper on defeating stackguard, it seems canaries are placed lower in the stack (higher address) than EBP, allowing the attacker to overwrite EBP without being noticed. But when I ...

Question 13

I have been conducting some minor research into the various forms of exploitation, such as buffer overflows and similar. Most tutorials seem to focus on executing shellcode, that is code which ...

Question 14

I am preparing for an exam in Computer Security and doing a past-exam without soluions, so I wanted to check if my reasoning holds on a question about stack overflow. Below is the C code in question. ...

Question 15

So I hope I'm phrasing this right. I'm trying to exploit a piece of c code which you can see below. #include <stdlib.h> #include <unistd.h> #include <stdio.h> #include <string.h&...

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Questions tagged [stack-overflow]

Is Tricore architecture of Infineon vulnerable to stack overflow attack?

Given extensive protections in modern operating systems that make buffer overflow exploits unfeasible, should I even bother studying these?

Can't print hexadecimal formatted address in buffer overflow

How to return to main after performing stack buffer overflow

bufferoverflow chars gets replaced on stack [closed]

Is Stack Exchange immune to DDoS and DoS attacks?

Why are stack canaries not enabled by default on GCC?

Buffer Overflow with ROP Chain Output Problem

Stack vs Heap exploit, which have more CVE documented?

Heap overflow - strcpy() on x86_64 (64bit)

What can you do against fortify-source (stack overflow)?

Is this paper on stack canaries outdated?

What is the maximum payload injection size

Question on stack overflow

Can you perform a buffer overflow and a format string attack at the same time?

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