#Vulnerability title: Radexscript CMS 2.2.0 - SQL Injection vulnerability
#Vendor: http://redaxscript.com/
#Product: Radexscript CMS
#Software link: http://redaxscript.com/download/releases
#Affected version: Redaxscript 2.2.0
#Fixed version: Redaxscript 2.3.0
#CVE ID: CVE-2015-1518
#Author: Pham Kien Cuong (cuong.k.p...@itas.vn) & ITAS Team (www.itas.vn)



:: PROOF OF CONCEPT ::

POST /redaxscript/ HTTP/1.1
Host: target.local
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101
Firefox/34.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: PHPSESSID=khtnnm1tvvk3s12if0no367872;
GEAR=local-5422433b500446ead50002d4
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 96

search_terms=[SQL INJECTION
HERE]&search_post=&token=24bcb285bc6f5c93203e4f95d9f2008331faf294&search_pos
t=Search



- Vulnerable parameter: $search_terms
- Vulnerable file:      redaxscript/includes/search.php
- Vulnerable function:  search_post()

- Vulnerable code:
function search_post()
{
        /* clean post */

        if (ATTACK_BLOCKED < 10)
        {
                $search_terms = clean($_POST['search_terms'], 5);
        }

        /* validate post */

        if (strlen($search_terms) < 3 || $search_terms == l('search_terms'))
        {
                $error = l('input_incorrect');
        }

        /* query results */

        else
        {
                $search = array_filter(explode(' ', $search_terms));
                $search_keys = array_keys($search);
                $last = end($search_keys);

                /* query search */

                $query = 'SELECT id, title, alias, description, date,
category, access FROM ' . PREFIX . 'articles WHERE (language = \'' .
Redaxscript\Registry::get('language') . '\' || language = \'\') && status =
1';
                if ($search)
                {
                        $query .= ' && (';
                        foreach ($search as $key => $value)
                        {

                                $query .= 'title LIKE \'%' . $value . '%\'
|| description LIKE \'%' . $value . '%\' || keywords LIKE \'%' . $value .
'%\' || text LIKE \'%' . $value . '%\'';
                                if ($last != $key)
                                {
                                        $query .= ' || ';
                                }
                        }
                        $query .= ')';
                }
                $query .= ' ORDER BY date DESC LIMIT 50';
                $result =
Redaxscript\Db::forTablePrefix('articles')->rawQuery($query)->findArray();
                $num_rows = count($result);
                if ($result == '' || $num_rows == '')
                {
                        $error = l('search_no');
                }

                /* collect output */

                else if ($result)
                {
                        $accessValidator = new
Redaxscript\Validator\Access();
                        $output = '<h2 class="title_content
title_search_result">' . l('search') . '</h2>';
                        $output .= form_element('fieldset', '',
'set_search_result', '', '', '<span class="title_content_sub
title_search_result_sub">' . l('articles') . '</span>') . '<ol
class="list_search_result">';
                        foreach ($result as $r)
                        {
                                $access = $r['access'];

                                /* if access granted */

                                if ($accessValidator->validate($access,
MY_GROUPS) === Redaxscript\Validator\Validator::PASSED)
                                {
                                        if ($r)
                                        {
                                                foreach ($r as $key =>
$value)
                                                {
                                                        $$key =
stripslashes($value);
                                                }
                                        }

                                        /* prepare metadata */

                                        if ($description == '')
                                        {
                                                $description = $title;
                                        }
                                        $date = date(s('date'),
strtotime($date));

                                        /* build route */

                                        if ($category == 0)
                                        {
                                                $route = $alias;
                                        }
                                        else
                                        {
                                                $route =
build_route('articles', $id);
                                        }

                                        /* collect item output */

                                        $output .= '<li
class="item_search_result">' . anchor_element('internal', '',
'link_search_result', $title, $route, $description) . '<span
class="date_search_result">' . $date . '</span></li>';
                                }
                                else
                                {
                                        $counter++;
                                }
                        }
                        $output .= '</ol></fieldset>';

                        /* handle access */

                        if ($num_rows == $counter)
                        {
                                $error = l('access_no');
                        }
                }
        }

        /* handle error */

        if ($error)
        {
                notification(l('something_wrong'), $error);
        }
        else
        {
                echo $output;
        }
}


:: SOLUTION ::
Update to Redaxscript 2.3.0

:: INFORMATION DISCLOSURE ::
- 11/27/2014: Inform the vendor
- 11/28/2014: Vendor confirmed
- 01/29/2015: Vendor releases patch
- 01/05/2015: ITAS Team publishes information


:: REFERENCE ::
-
http://www.itas.vn/news/itas-team-found-out-a-sql-injection-vulnerability-in
-redaxscript-2-2-0-cms-75.html

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Best Regards,
----------------------------------------------------------------------------
----------------
ITAS Team (www.itas.vn)

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