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Message-ID: <AANLkTi=EauEYOCbf3V4inrR4ReWdDZ-T6sxXhP2ucC1Q@mail.gmail.com>
Date: Fri, 18 Mar 2011 14:22:54 +0800
From: YGN Ethical Hacker Group <lists@...g.net>
To: oss-security@...ts.openwall.com
Subject: CVE Request: Geeklog 1.7.1 <= Cross Site Scripting Vulnerability
1. OVERVIEW
The Geeklog was vulnerable to Cross Site Scripting in its
administration backend.
2. BACKGROUND
Geeklog is a PHP/MySQL based application for managing dynamic web content.
"Out of the box", it is a blog engine, or a CMS with support for
comments, trackbacks,
multiple syndication formats, spam protection, and all the other vital
features of such a system.
3. VULNERABILITY DESCRIPTION
User supplied input is not probably sanitized in the "subgroup" and "conf_group"
parameters when the configuration settings are saved in
/admin/configuration.php.
Attackers who manage to get/bypass anti-csrf token (_glsectoken) via
other means can effectively perform XSS against admin users.
4. VERSIONS AFFECTED
1.7.1 and lower
5. PROOF-OF-CONCEPT/EXPLOIT
[Request]
POST /geeklog/admin/configuration.php HTTP/1.1
_glsectoken=&conf_group=Core'"--></script><script>alert(/XSS/)</script>&subgroup='"--></script><script>alert(/XSS/)</script>
[/Request]
6. SOLUTION
Upgrade to 1.7.1sr1
7. VENDOR
Geeklog Development Team
http://www.geeklog.net/
8. CREDIT
This vulnerability was discovered by Aung Khant, http://yehg.net, YGN
Ethical Hacker Group, Myanmar.
9. DISCLOSURE TIME-LINE
2010-12-31: notified vendor
2011-01-02: vendor released fixed version
2011-01-04: vulnerability disclosed
10. REFERENCES
Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/[geeklog1.7.1]_cross_site_scripting
Vendor Advisory: http://www.geeklog.net/article.php/geeklog-1.7.1sr1
About Geeklog: http://www.geeklog.net/docs/english/#introduction
http://stephensclafani.com/2009/05/26/exploiting-unexploitable-xss/
http://kuza55.blogspot.com/2008/02/exploiting-csrf-protected-xss.html
#yehg [2011-01-04]
---------------------------------
Best regards,
YGN Ethical Hacker Group
Yangon, Myanmar
http://yehg.net
Our Lab | http://yehg.net/lab
Our Directory | http://yehg.net/hwd
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