CVE-2013-1453 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

------------------------------------------------------------------- Joomla! <= 3.0.2 (highlight.php) PHP Object Injection Vulnerability ------------------------------------------------------------------- [-] Software Link: http://www.joomla.org/ [-] 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->request->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 (cve.mitre.org) has assigned the name CVE-2013-1453 to this vulnerability. [-] Credits: Vulnerability discovered by Egidio Romano. [-] Original Advisory: http://karmainsecurity.com/KIS-2013-03