Collaborate Disseminate
I have known that there is a perl script that converts snort rules to mod_security rules, but I can’t find it anywhere.
Continue reading Scripts for converting snort rules to mod_security rules [on hold]
My cpp program is very simple.
My char buffer array is of size 500.
I copy data from the argument to that array by strcpy.
I compile my program with Visual Studio 2008 Express Edition without GS(stack protection).
When I run … Continue reading Stack around the variable is corrupted problem
I use immunity debugger and mona.py to find SEH pointer in Windows 10. Command is !mona seh.
But it says no pointer is found.
I want to know what has changed in Windows 10 to protect against this memory corruption.
Continue reading Why is there no SEH handler found in Windows 10?
When we compile c program with gcc, we have to inlude “-z execstack” option to enable stack overflow attack.
The question I want to ask is how does gcc implement this .
Without this option, how does gcc guard the stack?
Plea… Continue reading How does gcc compiler guard stack for stack overflow?
I am learning about heap overflow. And I use the following code to overflow.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void jackpot() { puts(“jackpot!”); system(“/bin/sh”); }
int main()
… Continue reading Why kali cannot be exploited by user after free heap overflow? [on hold]
I want to know the address of lstrcpy or lstrcat in window xp serivce pack 1 and 2 and 3 .
I want to make buffer overflow on non-executable stack .
I am now following the instruction in Shellcoder handbook
and find difficulty… Continue reading lstrcpy address in windows xp sp3
I want to make buffer overflow on non-executable stack.So I implement this with lstrcpy.
My exploit code is as follows.
#include<stdio.h>
#include<windows.h>
unsigned char exploit[510]=”\x90\x90\x90\x90\x90\x90\x… Continue reading buffer overflow with lstrcpy
I want to know how to view comments or hidden messages in image files.
I want to know this for ctf challenges.
Thank you.
Continue reading How to view comments in image files? (steganography) [on hold]
I want to make heap overflow exploit.
But I have some difficulties . I want to know how to find av->top value and how to overwrite av->top value.
I do not understand clearly.
Please answer me.
I wrote a C program which contains a scanf call. I tested buffer overflow with that program and I overflow eip with the address of a function that I want to execute. But it only shows segmentation fault. Does my attack succee… Continue reading Buffer overflow in C program results in segmentation fault error