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sqlinjection bug in nova cms

# Exploit Title: XRayCMS 1.1.1 SQL Injection Vulnerability
# Date: 2/12/2012
# Author: Dr.web
# Software Link: http://sourceforge.net/projects/xraycms/files/latest/download
# Version: 1.1.1
# Tested on: Ubuntu
XRay CMS is vulnerable to a SQL Injection attack which allows
authentication bypass into the admins account. If a malicious
user supplies ' or 1=1# into the applications user name field
they will be logged into the applications admin account.
Jan 29, 2012 ? Contacted Vendor No Response
Feb 05, 2012 ? Public Disclosure
Since the vendor did not reply we attempted to create our own
fixes for this issue. The vulnerability exist in ?login2.php?
on lines 20 and 21.
17  if(!isset($_POST['username'])) header("Location: login.php?error_username");
18  if(!isset($_POST['password'])) header("Location: login.php?error_password");
20  $user = $_POST['username'];
21  $pass = $_POST['password'];
If the lines 20 and 21 are changed to:
$user = mysql_real_escape_string($_POST['username']);
$pass = mysql_real_escape_string($_POST['password']);
This will prevent the sql injection from happening in the user name field.