ContentNow CMS 1.39 'pageid' Sql Injection + Path Disclosure Vulnerabilities

2006-11-22T00:00:00
ID SECURITYVULNS:DOC:15164
Type securityvulns
Reporter Securityvulns
Modified 2006-11-22T00:00:00

Description

ContentNow CMS 1.39 Sql Injection + Path Disclosure Vulnerabilities

Severity : Medium risk Vendor : www.contentnow.mf4k.de Author : Alfredo 'revenge' Pesoli

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[#] 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.

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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>');

    $cnEngine-&gt;setId&#40;$pid&#41;;

... ...

[ 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