Joomla! Multiple Vulnerabilities

by Carol~ Moderator - 4/30/13 3:59 PM

In Reply to: VULNERABILITIES / FIXES - April 30, 2013 by Carol~ Moderator

Release Date : 2013-04-25
Last Update : 2013-04-30

Criticality level : Moderately critical
Impact : Security Bypass
Cross Site Scripting
DoS
Where: From remote
Solution Status : Vendor Patch

Software:
Joomla! 2.x
Joomla! 3.x

Description:
Multiple vulnerabilities have been reported in Joomla!, which can be exploited by malicious users to bypass certain security restrictions and potentially cause a DoS (Denial of Service) and by malicious people to conduct cross-site scripting attacks.

1) The application does not properly verify authorisation when deleting private messages. This can be exploited to e.g. delete otherwise inaccessible private messages.

2) The application does not properly verify authorisation when viewing permissions. This can be exploited to e.g. disclose otherwise inaccessible permission settings.

3) Certain unspecified input is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

4) Certain unspecified input related to the Flash-based file uploader is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

5) Certain unspecified input related to the Voting plugin is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

6) Input passed via HTTP cookies to plugins/system/remember/remember.php is not properly sanitized before being used in an "unserialize()" function call. This can be exploited to potentially cause a DoS.

7) Certain unspecified input related to the Highlighter plugin is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerabilities are reported in versions prior to 2.5.10 and 3.1.0.

Solution:
Update to version 2.5.10 or 3.1.0.

Provided and/or discovered by:
6) Egidio Romano

The vendor credits:
1,2) Francois Gauthier
3) James Kettle
4) Reginaldo Silva
5) Yannick Gaultier and Jeff Channell
7) Vertical Pigeon

Original Advisory:
Joomla!:
http://www.joomla.org/announcements/release-news/5493-joomla-2-5-10-released.html
http://www.joomla.org/announcements/release-news/5494-joomla-3-1-0-stable-released.html
http://developer.joomla.org/security/84-20130401-core-privilege-escalation.html
http://developer.joomla.org/security/82-20130402-core-information-disclosure.html
http://developer.joomla.org/security/81-20130403-core-xss-vulnerability.html
http://developer.joomla.org/security/83-20130404-core-xss-vulnerability.html
http://developer.joomla.org/security/80-20130405-core-xss-vulnerability.html
http://developer.joomla.org/security/85-20130406-core-dos-vulnerability.html
http://developer.joomla.org/security/86-20130407-core-xss-vulnerability.html

Egidio Romano:
http://karmainsecurity.com/KIS-2013-04

http://secunia.com/advisories/53202