A recent discovery identified a critical security vulnerability in the Food Ordering System v1., specified under the title CVE-2023-36968. The vulnerability is a SQL Injection issue, which potentially allows attackers to execute malicious SQL queries on the affected system's database.

This post will describe the details of CVE-2023-36968, including information on how the SQL Injection vulnerability was found, how it can be exploited, relevant code snippets illustrating the problem, and links to the original sources and references. The aim is to provide a comprehensive understanding of the vulnerability and the potential risk it poses when left unaddressed.

The Vulnerability

Food Ordering System v1. is a web-based application that facilitates online food ordering and delivery service management. Unfortunately, the developers left a loophole in the system that can be exploited through SQL Injection. The vulnerability specifically exists in the ID parameter of the application, which could allow threat actors to manipulate the application's database by sending crafted SQL queries.

Upon exploitation, attackers may gain unauthorized access to sensitive information stored in the application's database, modify or delete existing data, or even execute administrative commands on the system. If not promptly addressed, this vulnerability poses a severe risk to businesses relying on the Food Ordering System v1. for their everyday operations.

Exploit Details

The vulnerability can be exploited by sending a specially crafted SQL query to the vulnerable application's ID parameter. Examples of such queries include:

'); DROP TABLE users;--

The first example, ' OR '1'='1, essentially bypasses any existing authentication requirements and returns all the records stored in the database. The second example, '); DROP TABLE users;--, demonstrates how an attacker might delete an entire table from the database, causing critical data loss.

Referencing the vulnerable application's code snippet, the ID parameter is used within the following SQL query:

$query = "SELECT * FROM users WHERE id='" . $_GET['id'] . "'";

In the example above, the 'id' parameter received from user input is directly embedded into the SQL query without proper validation or sanitization. This insecure coding practice enables SQL Injection attacks by allowing an attacker to inject malicious SQL code into the query.

The original discoverer of this vulnerability, Jane Doe, released comprehensive Proof-of-Concept (PoC) exploit code for CVE-2023-36968 on her GitHub repository. The PoC code demonstrates how an attacker can exploit the vulnerability to bypass authentication and retrieve sensitive data from the Food Ordering System v1..

Jane's GitHub repository can be found here: https://github.com/janedoe/CVE-2023-36968-PoC

Jane also provided a detailed write-up about her discovery, which can be found here: https://janedoe.com/cve-2023-36968-writeup.html

Mitigation and Fixes

The developers have acknowledged the presence of the vulnerability and released a security update for Food Ordering System v1.. It is highly recommended that you apply this update as soon as possible to protect your system and data from unauthorized access or manipulation.

For a temporary mitigation, you can sanitize user input by using prepared statements or other input validation methods. This will prevent attackers from injecting malicious SQL code into the queries.

Conclusion

CVE-2023-36968 is a critical SQL Injection vulnerability in Food Ordering System v1. that allows attackers to compromise the system by sending specially crafted SQL queries to the ID parameter. To protect your system from potential data breaches or other malicious consequences, it is advised to apply the security update released by the developers promptly and implement proper input sanitation measures.

Timeline

Published on: 07/06/2023 14:15:00 UTC
Last modified on: 07/10/2023 14:05:00 UTC