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phpCollab v2.5 CMS - SQL Injection Vulnerability
Aug 08 2016 09:21AM
Vulnerability Lab (research vulnerability-lab com)
phpCollab v2.5 CMS - SQL Injection Vulnerability
Vulnerability Laboratory ID (VL-ID):
Common Vulnerability Scoring System:
Product & Service Introduction:
phpCollab is an open source internet-enabled system for use in projects that require collaboration over the internet. Those organizations,
such as consulting firms, that rely on a division between firm-side and client-side information will benefit most from use of phpCollab.
Abstract Advisory Information:
The vulnerability laboratory research team discovered a remote sql-injection web vulnerability in the official phpCollab v2.5 content management system.
Vulnerability Disclosure Timeline:
2016-08-08: Public Disclosure (Vulnerability Laboratory)
Product: phpCollab - Content Management System 2.5
Technical Details & Description:
A remote sql-injection web vulnerability has been discovered in the official phpCollab v2.5 content management system.
The vulnerability allows remote attackers to execute own malicious sql commands to compromise the application or dbms.
The sql-injection vulnerability is located in the `id` parameter of the `./phpcollab/users/` module GET method request.
Remote attackers are able to execute own sql commands by usage of the insecure `emailusers.php` file GET method request.
The attack vector of the vulnerability is application-side and the request method to inject is GET The vulnerability
is a classic select remote sql-injection.
The security risk of the vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 6.6.
Exploitation of the remote sql injection web vulnerability requires no user interaction or privileged web-application user account.
Successful exploitation of the remote sql injection results in database management system, web-server and web-application compromise.
Proof of Concept (PoC):
The remote sql-injection web vulnerability can be exploited by remote attackers without privileged web-application user account and without user interaction.
For security demonstration or to reproduce the sql-injection web vulnerability follow the provided information and steps below to continue.
--- Error Exception Logs [SQL] ---
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 2
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3
--- PoC Session Logs [GET] ---
User-Agent[Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0]
Solution - Fix & Patch:
The vulnerability can be patched by usage of a prepared statement in the emailusers.php file GET method request.
Disallow special chars and escape the input and outpit context entries to prevent further sql-injection attacks.
The security risk of the remote sql-injection web vulnerability in the id parameter of the emailusers.php file is estimated as high. (CVSS 6.6)
Credits & Authors:
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (http://www.vulnerability-lab.com/show.php?user=Benjamin%20K.M.)
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