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Easynews <= 4.4.1 (admin.php) Authentication Bypass Vulnerability

Author
nuffsaid
Risk
[
Security Risk Unsored
]
0day-ID
0day-ID-1018
Category
web applications
Date add
16-10-2006
Platform
unsorted
=================================================================
Easynews <= 4.4.1 (admin.php) Authentication Bypass Vulnerability
=================================================================



+-------------------------------------------------------------------------------------------
+ Easynews <= 4.4.1 (admin.php) Authentication Bypass Vulnerability
+-------------------------------------------------------------------------------------------
+ Affected Software .: Easynews <= 4.4.1
+ Vendor ............: http://www.myupb.com/
+ Description .......: "A news management system for your website."
+ Class .............: Authentication Bypass
+ Risk ..............: High (Authentication Bypass)
+ Found By ..........: nuffsaid 
+-------------------------------------------------------------------------------------------
+ Details:
+ Easynews doesn't properly check to ensure an administrator has been logged in with correct
+ username and password information, it only checks if $admin[$en_login_id] == "true".
+ 
+ Tested and working on version 4.4.0 and 4.4.1 (previous versions may also be affected)
+ with register_globals = On, after bypassing the login check administrators have the option
+ to edit config2.php (PHP code can be inserted then executed by visiting config2.php directly
+ or any other script that includes config2.php) and other general settings.
+ 
+ Vulnerable Code:
+ admin.php, line(s) 22: if(@$admin[$en_login_id] == "true") //admin is logged in successfuly
+ 
+ Proof Of Concept:
+ http://[target]/[path]/admin.php?action=users&en_login_id=0
+ http://[target]/[path]/admin.php?action=config&en_login_id=0
+-------------------------------------------------------------------------------------------



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