Two Reflected Cross-Site Scripting (XSS) Vulnerabilities in Forma Lms

[High-Tech Bridge Security Research <advisory@xxxxxxxxxxxx>]

Advisory ID: HTB23226
Product: Forma Lms
Vendor: http://www.formalms.org/
Vulnerable Version(s): 1.2.1 and probably prior
Tested Version: 1.2.1
Advisory Publication:  August 6, 2014  [without technical details]
Vendor Notification: August 6, 2014 
Vendor Patch: November 4, 2014 
Public Disclosure: November 5, 2014 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2014-5257
Risk Level: Medium 
CVSSv2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
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 two vulnerabilities in Forma 
Lms, which can be exploited to perform Cross-Site Scripting (XSS) attacks 
against vulnerable website.


1) Reflected Cross-Site Scripting (XSS) in Forma Lms: CVE-2014-5257

1.1 The vulnerability exists due to insufficient sanitization of input data 
passed via the "id_custom" HTTP GET parameter to "/appCore/index.php". A remote 
attacker can trick a logged-in user to open a specially crafted link and 
execute arbitrary HTML and script code in browser in context of the vulnerable 
website. Further exploitation of the vulnerability may allow an attacker to use 
advanced techniques to gain full control over the browser session and perform 
arbitrary tasks with privileges of the logged-in user.

The exploitation example below uses the "alert()" JavaScript function to 
display "immuniweb" word:

http://formalms/appCore/index.php?modname=amanmenu&op=modcustom&id_custom=%22%3E%3Cscript%3Ealert%28/immuniweb/%29;%3C/script%3E

1.2 The vulnerability exists due to insufficient sanitization of input data 
passed via the "id_game" HTTP GET parameter to "/appCore/index.php". A remote 
attacker can trick a logged-in user to open a specially crafted link and 
execute arbitrary HTML and script code in browser in context of the vulnerable 
website. Further exploitation of the vulnerability may allow an attacker to use 
advanced techniques to gain full control over the browser session and perform 
arbitrary tasks with privileges of the logged-in user.

The exploitation example below uses the "alert()" JavaScript function to 
display "immuniweb" word:

http://formalms/appCore/index.php?r=alms/games/edit&id_game=%22%3E%3Cscript%3Ealert%28/immuniweb/%29;%3C/script%3E



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Solution:

Update to Forma Lms 1.2.1 p01

More Information:
http://sourceforge.net/projects/forma/files/version 1.x/

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References:

[1] High-Tech Bridge Advisory HTB23226 - 
https://www.htbridge.com/advisory/HTB23226 - Two Reflected Cross-Site Scripting 
(XSS) Vulnerabilities in Forma Lms.
[2] Forma Lms - http://www.formalms.org/ - Forma.Lms is an open-source, 
web-based elearning platform (Learning Management System - LMS), used to manage 
and deliver online training courses.
[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.
[5] ImmuniWeb® SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual 
web application penetration test and cutting-edge vulnerability scanner 
available online via a Software-as-a-Service (SaaS) model.

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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.