Cotonti 0.9.13 - SQL Injection

Advisory ID: HTB23164
Product: Cotonti
Vendor: Cotonti Team
Vulnerable Version(s): 0.9.13 and probably prior
Tested Version: 0.9.13
Vendor Notification: July 10, 2013 
Vendor Patch: July 17, 2013 
Public Disclosure: July 31, 2013 
Vulnerability Type: SQL Injection [CWE-89]
CVE Reference: CVE-2013-4789
Risk Level: High 
CVSSv2 Base Score: 7.5 (AV:N/AC:L/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 vulnerability in Cotonti, which can be exploited to perform SQL injection attacks against vulnerable application. A remote attacker can read, modify or delete data in application’s database and even gain complete control over the application under certain circumstances.


1) SQL Injection in Cotonti: CVE-2013-4789

The vulnerability exists due to insufficient filtration of the "c" HTTP GET parameter passed to "/index.php" script when HTTP GET "e" parameter is set to "rss". A remote unauthenticated attacker can execute arbitrary SQL commands in application's database.


The following PoC code displays version of MySQL server:

http://[host]/index.php?e=rss&c=%27and%28select%201%20from%28select%20count%28*%29%2cconcat%28%28select%20concat%28version%28%29%29%29%2cfloor%28rand%280%29*2%29%29x%20from%20information_schema.tables%20group%20by%20x%29a%29and%27

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Solution:

Upgrade to Cotonti 0.9.14

More Information:
http://www.cotonti.com/news/announce/siena_0914_released
http://www.cotonti.com/forums?m=posts&q=7475
https://github.com/Cotonti/Cotonti/commit/45eec046391afabb676b62b9201da0cd530360b4

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References:

[1] High-Tech Bridge Advisory HTB23164 - https://www.htbridge.com/advisory/HTB23164 - SQL Injection in Cotonti.
[2] Cotonti - http://www.cotonti.com/ - Cotonti is a powerful open-source web development framework and content manager with a focus on security, speed and flexibility.
[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.