Tuesday, March 22, 2011

Joomla! 1.6.0 | Information Disclosure/Full Path Disclosure Vulnerability

Joomla! 1.6.0 | Information Disclosure/Full Path Disclosure Vulnerability

1. OVERVIEW
Joomla! 1.6.0 is vulnerable to Full Path Disclosure.

2. BACKGROUND
Joomla is a free and open source content management system (CMS) for
publishing content on the World Wide Web and intranets. It comprises a
model–view–controller (MVC) Web application framework that can also be
used independently.
Joomla is written in PHP, uses object-oriented programming (OOP)
techniques and software design patterns, stores data in a MySQL
database, and includes features such as page caching, RSS feeds,
printable versions of pages, news flashes, blogs, polls, search, and
support for language internationalization.

3. VULNERABILITY DESCRIPTION
Direct access to a library file was not protected, which causes
revealing the full internal path of a server whose PHP setting is set
to show errors.

4. VERSION AFFECTED
Joomla! 1.6.0

5. PROOF-OF-CONCEPT/EXPLOIT
http://attacker.in/joomla160/libraries/phpmailer/language/phpmailer.lang-joomla.php

6. SOLUTION
Upgrade to Joomla! 1.6.1 or higher

7. VENDOR
Joomla! Developer Team
http://www.joomla.org

8. CREDIT
Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar.

9. DISCLOSURE TIME-LINE
2011-01-24: notified vendor
2011-03-08: vendor released fix
2011-03-23: vulnerability disclosed

10. REFERENCES
Vendor Advisory URL:
http://developer.joomla.org/security/news/328-20110201-core-sql-injection-path-disclosure.html
Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/joomla/core/[joomla_1.6.0]_full_path_disclosure
inspathx signature:
http://code.google.com/p/inspathx/source/browse/trunk/paths_vuln/joomla-1.6.0
WASC-13
: http://projects.webappsec.org/w/page/13246936/Information-Leakage
CWE-200
: http://cwe.mitre.org/data/definitions/200.html

#yehg [2011-03-23]