|
ContentNow CMS 1.39 Sql Injection + Path Disclosure Vulnerabilities
Severity : Medium risk
Vendor : www.contentnow.mf4k.de
Author : Alfredo 'revenge' Pesoli
[--------------------------------------------------]
[#] Description
ContentNow is a PHP Content Management System web 2.0 compliant, more info can be found at
vendor site.
ContentNow v1.39 is vulnerable to a sql injection and path disclosure.
[--------------------------------------------------]
Vuln #1 : Sql Injection
Impact : Admin credentials disclosure (Manipulation of data)
Exploit : http://www.0xcafebabe.it/sploits/contentnow_139_sqlinj.pl
The "pageid" parameter in "index.php" isn't properly sanitised before
being used in a sql query, this can be exploited to manipulate existing
SQL query by inserting arbitrary SQL code, which can disclose sensitive
information like admin credentials.
The problem is due to:
[ index.php ]
...
...
// get/set id or startpageid from config
$pid = $_GET['pageid'];
if (empty($pid) || $pid == 1) $pid = $cnEngine->configArray[0]['startpageid'];
--> if (false == $cnEngine->checkPid($pid)) die ('<span style="font:13px sans-serif;">
Error loading site. No pid found.</span>');
$cnEngine->setId($pid);
...
...
[ function checkPid($pid) from /cn/library/class.engine.php ]
...
...
function checkPid($pid) {
$cnDatabase = NewADOConnection(ADODB_DB_TYPE);
$cnDatabase->Connect(CN_DB_HOST, CN_DB_USER, CN_DB_PASSWORD, CN_DB_NAME);
$sql = "SELECT pageid FROM ".CN_TBL_SECTIONS." WHERE pageid = ".$pid;
$res = $cnDatabase->Execute($sql);
if ($res->RecordCount() > 0) {
return true;
} else {
return false;
}
}
...
...
As you can see there's no input validation on "pageid" parameter.
It is also possible to disclose the full path to index.php by requesting index.php?pageid='
[#] Solution
Download 1.40 version.
[#] Disclosure timeline
2006/11/20 Bugs discovered
2006/11/20 Vendor contacted
2006/11/21 Vendor response
2006/11/21 New version 1.40 patched
2006/11/22 Public Disclosure
Alfredo 'revenge' Pesoli
|
