Joomla! up to 3.1.5 Libraries example.php lang Reflected cross site scripting

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6.0$0-$5k0.00

A vulnerability classified as critical was found in Joomla! up to 3.1.5 (Content Management System). This vulnerability affects an unknown code of the file libraries/idna_convert/example.php of the component Libraries. The manipulation of the argument lang with the input value ">[script]alert(document.cookie);[/script]<!-- leads to a cross site scripting vulnerability (Reflected). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cross-site scripting (XSS) vulnerability in libraries/idna_convert/example.php in Joomla! 3.1.5 allows remote attackers to inject arbitrary web script or HTML via the lang parameter.

The weakness was shared 08/04/2013 by Emilio Pinna as Joomla core 3.1.5 reflected XSS vulnerability as confirmed advisory (Website). The advisory is available at disse.cting.org. The vendor cooperated in the coordination of the public release. This vulnerability was named CVE-2013-5583 since 08/23/2013. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. Responsible for the vulnerability is the following code:

if (isset($_REQUEST['lang'])) {
   if ('de' == $_REQUEST['lang'] || 'en' == $_REQUEST['lang']) $lang = $_REQUEST['lang'];
   $add .= '<input type="hidden" name="lang" value="'.$_REQUEST['lang'].'" />'."\n";
}

A public exploit has been developed in URL and been published 1 days after the advisory. It is possible to download the exploit at disse.cting.org. It is declared as highly functional. By approaching the search of inurl:libraries/idna_convert/example.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 69280 (Joomla! libraries/idna_convert/example.php lang Parameter XSS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses : XSS.

Applying the patch c00c033 is able to eliminate this problem. The bugfix is ready for download at github.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Fixed deleting the example.php file

The vulnerability is also documented in the databases at X-Force (90144) and Tenable (69280).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: Reflected
Class: Cross site scripting / Reflected
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍
Google Hack: 🔍

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Nessus ID: 69280
Nessus Name: Joomla! libraries/idna_convert/example.php lang Parameter XSS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802022
OpenVAS Name: Joomla! lang Parameter Reflected Cross Site Scripting Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: c00c033

Timelineinfo

08/03/2013 🔍
08/04/2013 +1 days 🔍
08/04/2013 +0 days 🔍
08/05/2013 +1 days 🔍
08/09/2013 +4 days 🔍
08/09/2013 +0 days 🔍
08/18/2013 +9 days 🔍
08/23/2013 +5 days 🔍
12/28/2013 +127 days 🔍
05/21/2021 +2701 days 🔍

Sourcesinfo

Advisory: Joomla core 3.1.5 reflected XSS vulnerability
Researcher: Emilio Pinna
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5583 (🔍)
X-Force: 90144 - Joomla! example.php cross-site scripting
Vulnerability Center: 41097 - Joomla! Core \x3C\x3D3.1.5 Remote XSS Vulnerability via Lang Parameter in PHP Script, Medium
SecurityFocus: 61600
Secunia: 54353 - Joomla! "lang" Cross-Site Scripting Vulnerability, Less Critical
OSVDB: 95998 - Joomla! /libraries/idna_convert/example.php lang Parameter XSS

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/09/2013 17:43
Updated: 05/21/2021 09:08
Changes: 08/09/2013 17:43 (61), 07/09/2015 10:40 (25), 05/21/2021 09:05 (8), 05/21/2021 09:08 (1)
Complete: 🔍
Committer: olku

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