Joomla! <= 3.0.2 highlight.php PHP Object Injection Vulnerability

ID EDB-ID:24551
Type exploitdb
Reporter EgiX
Modified 2013-02-27T00:00:00


Joomla! <= 3.0.2 (highlight.php) PHP Object Injection Vulnerability. CVE-2013-1453. Webapps exploit for php platform

Joomla! &lt;= 3.0.2 (highlight.php) PHP Object Injection Vulnerability

[-] Software Link:

[-] Affected Versions:

Version 3.0.2 and earlier 3.0.x versions.
Version 2.5.8 and earlier 2.5.x versions.

[-] Vulnerability Description:

The vulnerable code is located in /plugins/system/highlight/highlight.php:

56.	// Get the terms to highlight from the request.
57.	$terms = $input-&gt;request-&gt;get('highlight', null, 'base64');
58.	$terms = $terms ? unserialize(base64_decode($terms)) : null;

User input passed through the "highlight" parameter is not properly sanitized before being used in
an unserialize() call at line 58. This can be exploited to inject arbitrary PHP objects into the
application scope. Successful exploitation of this vulnerability doesn't require authentication,
but requires the "System Highlight" plugin to be enabled (such as by default configuration).

[-] Solution:

Upgrade to version 3.0.3 or 2.5.9.

[-] Disclosure Timeline:

[31/10/2012] - Vendor notified
[08/11/2012] - Vendor asked for a proof of concept
[08/11/2012] - Proof of concept provided to the vendor
[04/02/2013] - Vendor update released
[27/02/2013] - Public disclosure

[-] CVE Reference:

The Common Vulnerabilities and Exposures project (
has assigned the name CVE-2013-1453 to this vulnerability.

[-] Credits:

Vulnerability discovered by Egidio Romano.

[-] Original Advisory: