Joomla! AlphaRegistration Component "email" SQL Injection Vulnerability

SECUNIA ADVISORY ID:
SA45337

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45337/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45337

RELEASE DATE:
2011-07-23
DESCRIPTION:
playball2009 has discovered a vulnerability in the AlphaRegistration
component for Joomla!, which can be exploited by malicious people to
conduct SQL injection attacks.

Input passed via the "email" parameter to
components/com_alpharegistration/assets/scripts/checkemail.php is not
properly sanitised before being used in SQL queries. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.

The vulnerability is confirmed in version 2.0.13. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
playball2009

ORIGINAL ADVISORY:
Joomla!:
http://forum.joomla.org/viewtopic.php?f=432&t=636467
http://docs.joomla.org/Vulnerable_Extensions_List#alpharegistration