HTTP Client Information Gather - Metasploit


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

Table Of Contents
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Module Overview

Name: HTTP Client Information Gather
Module: auxiliary/gather/browser_info
Source code: modules/auxiliary/gather/browser_info.rb
Disclosure date: 2016-03-22
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: -
Target network port(s): -
List of CVEs: -

This module gathers information about a browser that exploits might be interested in, such as OS name, browser version, plugins, etc. By default, the module will return a fake 404, but you can customize this output by changing the Custom404 datastore option, and redirect to an external web page.

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/browser_info
msf auxiliary(browser_info) > run

This module is also supported by Browser Autopwn 2.

To load it from Browser Autopwn 2, here's how:

msf > use auxiliary/server/browser_autopwn2 
msf auxiliary(browser_autopwn2) > set INCLUDE_PATTERN browser_info
INCLUDE_PATTERN => browser_info
msf auxiliary(browser_autopwn2) > exploit

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Msfconsole Usage

Here is how the gather/browser_info auxiliary module looks in the msfconsole:

msf6 > use auxiliary/gather/browser_info

msf6 auxiliary(gather/browser_info) > show info

       Name: HTTP Client Information Gather
     Module: auxiliary/gather/browser_info
    License: Metasploit Framework License (BSD)
       Rank: Normal
  Disclosed: 2016-03-22

Provided by:
  sinn3r <[email protected]>

Available actions:
  Name       Description
  ----       -----------
  WebServer  A web server that collects information about the browser.

Check supported:
  No

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  Retries  true             no        Allow the browser to retry the module
  SRVHOST  0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
  SRVPORT  8080             yes       The local port to listen on.
  SSL      false            no        Negotiate SSL for incoming connections
  SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)
  URIPATH                   no        The URI to use for this exploit (default is random)

Description:
  This module gathers information about a browser that exploits might 
  be interested in, such as OS name, browser version, plugins, etc. By 
  default, the module will return a fake 404, but you can customize 
  this output by changing the Custom404 datastore option, and redirect 
  to an external web page.

Module Options

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

msf6 auxiliary(gather/browser_info) > show options

Module options (auxiliary/gather/browser_info):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   Retries  true             no        Allow the browser to retry the module
   SRVHOST  0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
   SRVPORT  8080             yes       The local port to listen on.
   SSL      false            no        Negotiate SSL for incoming connections
   SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)
   URIPATH                   no        The URI to use for this exploit (default is random)

Auxiliary action:

   Name       Description
   ----       -----------
   WebServer  A web server that collects information about the browser.

Advanced Options

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

msf6 auxiliary(gather/browser_info) > show advanced

Module advanced options (auxiliary/gather/browser_info):

   Name              Current Setting  Required  Description
   ----              ---------------  --------  -----------
   CookieExpiration                   no        Cookie expiration in years (blank=expire on exit)
   CookieName        __ua             no        The name of the tracking cookie
   Custom404                          no        An external custom 404 URL (Example: http://example.com/404.html)
   JsIdentifiers                      no        Identifiers to preserve for JsObfu
   JsObfuscate       0                no        Number of times to obfuscate JavaScript
   ListenerComm                       no        The specific communication channel to use for this service
   SSLCipher                          no        String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
   SSLCompression    false            no        Enable SSL/TLS-level compression
   SendRobots        false            no        Return a robots.txt file if asked for one
   URIHOST                            no        Host to use in URI (useful for tunnels)
   URIPORT                            no        Port to use in URI (useful for tunnels)
   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/browser_info module can do:

msf6 auxiliary(gather/browser_info) > show actions

Auxiliary actions:

   Name       Description
   ----       -----------
   WebServer  A web server that collects information about the browser.

Evasion Options

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

msf6 auxiliary(gather/browser_info) > show evasion

Module evasion options:

   Name                      Current Setting  Required  Description
   ----                      ---------------  --------  -----------
   HTML::base64              none             no        Enable HTML obfuscation via an embeded base64 html object (IE not supported) (Accepted: none, plain, single_pad, double_pad, random_space_injection)
   HTML::javascript::escape  0                no        Enable HTML obfuscation via HTML escaping (number of iterations)
   HTML::unicode             none             no        Enable HTTP obfuscation via unicode (Accepted: none, utf-16le, utf-16be, utf-16be-marker, utf-32le, utf-32be)
   HTTP::chunked             false            no        Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
   HTTP::compression         none             no        Enable compression of HTTP responses via content encoding (Accepted: none, gzip, deflate)
   HTTP::header_folding      false            no        Enable folding of HTTP headers
   HTTP::junk_headers        false            no        Enable insertion of random junk HTTP headers
   HTTP::no_cache            false            no        Disallow the browser to cache HTTP content
   HTTP::server_name         Apache           yes       Configures the Server header of all outgoing replies
   TCP::max_send_size        0                no        Maximum tcp segment size.  (0 = disable)
   TCP::send_delay           0                no        Delays inserted before every send.  (0 = disable)

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See Also

Check also the following modules related to this module:

Authors

  • sinn3r

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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