A critical vulnerability, CVE-2022-4088, has been discovered in rickxy Stock Management System, a popular web-based inventory management software. The vulnerability affects some unknown functionality of the file /pages/processlogin.php and may lead to SQL injection attacks, allowing attackers to remotely compromise the affected systems. VDB-214322 is the vulnerability database identifier assigned to this issue.

Exploit Details

The vulnerability arises from improper handling of user-supplied input for the 'user' and 'password' arguments in the /pages/processlogin.php file. By manipulating these two arguments, an attacker can inject malicious SQL queries into the back-end database, potentially obtaining unauthorized access to sensitive data, altering database contents, or executing arbitrary commands on the affected system.

The following code snippet demonstrates the vulnerable code in the /pages/processlogin.php file

<?php
    // ...
    $user = $_POST['user'];
    $password = $_POST['password'];

    // ...
    $sql = "SELECT * FROM users WHERE user='$user' AND password='$password'";
    $result = mysqli_query($conn, $sql);
    // ...
?>

In this code, the $user and $password variables are directly inserted into the SQL query without proper sanitization or validation, allowing an attacker to inject malicious SQL code by supplying specially crafted values for these variables.

Here is an example of a simple SQL injection payload that could be used to exploit this vulnerability:

'user' => "admin' -- ",
'password' => ""

This payload would result in the following SQL query

SELECT * FROM users WHERE user='admin' -- ' AND password=''

The double hyphens (-- ) denote the beginning of an SQL comment, effectively neutralizing the rest of the query and bypassing the password check, allowing unauthorized access to the system as an 'admin' user.

Several resources have documented the CVE-2022-4088 vulnerability, providing additional details and mitigation techniques. Here are some key references:

1. CVE Details: CVE-2022-4088
2. Vulnerability Database: VDB-214322
3. rickxy Stock Management System GitHub Repository

Mitigation and Recommendations

To protect your rickxy Stock Management System installation from this critical vulnerability, follow these recommendations:

1. Update your system to the latest version, as the developers may have already released a security patch addressing this vulnerability.
2. Review your codebase to ensure proper input validation and sanitization, especially for variables that interact with SQL queries.
3. Implement a Web Application Firewall (WAF) to filter out malicious input and help prevent SQL injection attacks.

Conclusion

CVE-2022-4088 is a critical vulnerability in the rickxy Stock Management System that could allow attackers to execute arbitrary SQL queries on the affected systems. Due to its public disclosure, it's crucial for administrators to take immediate action to secure their installations and prevent potential attacks. Be sure to stay up-to-date with the latest security patches and follow best practices to protect your systems from emerging threats.

Timeline

Published on: 11/24/2022 10:15:00 UTC
Last modified on: 11/28/2022 20:41:00 UTC