Collaborate Disseminate
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 to get your insights.
With modern oper… Continue reading Should I Continue Studying Buffer Overflow Vulnerabilities?
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 0x00005555555314 but every time I try to use \x14… Continue reading Can’t print hexadecimal formatted address in buffer overflow
#include <stdio.h>
#include <stdlib.h>
void reading();
void reading_hexa(char*);
void secret();
int main()
{
reading();
printf("Input done\n");
exit(0);
}
void reading() {
char buf[16];
reading_… Continue reading How to return to main after performing stack buffer overflow
Here’s the C code:
#include<stdio.h>
int main(int argc, char **argv){
char a[100];
char *b;
printf("Welcome to SUST Dungeon Fellow Hacker!\n");
scanf("%s", &a);
if(b=="chiching&q… Continue reading Even though the $rax and $rbp-8 is eq it’s taking the jne path
I’m trying to understand if VxWorks has the ability to support stack canary protection. I couldn’t find any info on that.
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", &buf); // leak helper
strcpy(… Continue reading bufferoverflow chars gets replaced on stack [closed]
“They paved paradise and put up a parking lot.” That might be stretching things a bit, especially when the “paradise” in question is in New Jersey, but there’s a move …read more Continue reading Hackaday Links: December 11, 2022
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 stack which deals with such things. What… Continue reading Is Stack Exchange immune to DDoS and DoS attacks?
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-canaries-can-be-disabled-by-compiler/49694… Continue reading Why are stack canaries not enabled by default on GCC?
I am currently following "Hacking: The Art of Exploitation", and I am stuck.
I am trying to fully understand the stack overflow vulnerability.
In the book, the process of overflowing is shown using a x86 architecture, I have a x6… Continue reading Unable to take control of RIP register