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Message-ID: <AANLkTikyPJVo1P1p2NpqAeVB1f6jxsXuuu==tZOyHhrD@mail.gmail.com>
Date: Tue, 1 Feb 2011 17:03:19 +0800
From: YGN Ethical Hacker Group <lists@...g.net>
To: oss-security@...ts.openwall.com
Subject: CVE Request: Zikula CMS 1.2.4 <= Cross Site Request Forgery (CSRF) Vulnerability
=====================================================================
Zikula CMS 1.2.4 <= Cross Site Request Forgery (CSRF) Vulnerability
=====================================================================
1. OVERVIEW
The Zikula 1.2.4 and lower versions were vulnerable to Cross Site
Request Forgery (CSRF).
2. BACKGROUND
Zikula is a Web Application Toolkit, which allows you to run
impressive websites and build powerful online applications. Zikula has
received praise for many things, but we belive the highlights are ease
of use, quick and easy development, security and performance and
lastly flexibility.
3. VULNERABILITY DESCRIPTION
Zikula CMS 1.2.4 and lower versions contain a flaw that allows a
remote Cross-site Request Forgery (CSRF / XSRF) attack. The flaw
exists because the application does not require multiple steps or
explicit confirmation for sensitive transactions for majority of
administrator functions such as adding new user, assigning user to
administrative privilege. By using a crafted URL, an attacker may
trick the victim into visiting to his web page to take advantage of
the trust relationship between the authenticated victim and the
application. Such an attack could trick the victim into executing
arbitrary commands in the context of their session with the
application, without further prompting or verification.
4. VERSIONS AFFECTED
1.2.4 <=
5. PROOF-OF-CONCEPT/EXPLOIT
The following request escalates a normal user to an administrator.
[REQUEST]
POST /zikula/index.php?module=users&type=admin&func=processusers&op=edit
HTTP/1.1
authid=&userid=3&do=yes&access_permissions%5B%5D=2&access_permissions%5B%5D=1&uname=tester&email=tester%40yehg.net&pass=&vpass=&activated=1&theme=&submit=
[/REQUEST]
6. SOLUTION
Upgrade to Zikula 1.2.5 or higher
7. VENDOR
Zikula Foundation
http://zikula.org/
8. CREDIT
This vulnerability was discovered by Aung Khant, http://yehg.net, YGN
Ethical Hacker Group, Myanmar.
9. DISCLOSURE TIME-LINE
2010-12-24: notified vendor
2011-01-25: vendor released fix
2011-02-01: vulnerability disclosed
10. REFERENCES
Original Advisory URL: http://yehg.net/lab/pr0js/advisories/
Vendor Released Info:
http://community.zikula.org/index.php?module=News&func=display&sid=3041&title=zikula-1.2.5-released
Zikula 1.2.5 Changlog:
http://code.zikula.org/core12/browser/tags/Zikula-1.2.5/src/docs/CHANGELOG
CSRF Wiki: https://secure.wikimedia.org/wikipedia/en/wiki/Cross-site_request_forgery
#yehg [2011-02-01]
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