Automotive Shop Management System (ASMS) is a popular web-based application for managing various aspects of auto repair shops, including inventory, customers, and mechanics. However, the recent discovery of a critical security vulnerability with the identifier CVE-2022-44378 in ASMS version 1. exposes the system to SQL injection attacks, which can result in unauthorized access, sensitive data leaks, and possible system takeover.

In this post, we will discuss the technical details of this vulnerability and how it can be exploited. We will also provide links to original references, code snippets, and potential mitigation steps.

Exploit Details

The vulnerability lies within the /asms/classes/Master.php?f=delete_mechanic endpoint, which allows an attacker to execute arbitrary SQL queries by manipulating the input parameters. This can result in unauthorized access, data manipulation, and potentially taking control of the entire system.

The vulnerability affects ASMS version 1., and it has been assigned the CVE identifier CVE-2022-44378. It is a high-impact issue with a CVSS score of 9., which indicates a severe risk to businesses using the affected software.

The vulnerable code in Master.php is as follows

function deleteMechanic($mechanic_id) {
    $sql = "DELETE FROM mechanics WHERE mechanic_id = '$mechanic_id'";
    $query = mysqli_query($this->con, $sql);
    if ($query) {
        $result = "Mechanic deleted successfully";
    } else {
        $result = "Failed to delete mechanic";
    }
    return $result;
}

As demonstrated above, the deleteMechanic function uses the user-supplied $mechanic_id parameter without proper validation or sanitization when constructing the SQL query that deletes a mechanic's record from the database. This makes the code vulnerable to SQL injection attacks.

For example, an attacker could send the following HTTP GET request to exploit the vulnerability

http://vulnerable-website.com/asms/classes/Master.php?f=delete_mechanic&mechanic_id=1 OR 1=1

Original References

* CVE-2022-44378 - NVD
 * Automotive Shop Management System v1. - SQL Injection

To counter this vulnerability, developers should implement the following security practices

1. Update ASMS to the latest version or ensure that a patch addressing this vulnerability has been applied.
 2. Use parameterized queries or prepared statements when interacting with the SQL database to prevent SQL injection attacks.
 3. Validate and sanitize all user-supplied inputs before processing or inserting them into database queries.
 4. Employ proper access controls and authentication mechanisms to restrict unauthorized access to sensitive data and system functionalities.

Conclusion

In summary, the recently discovered CVE-2022-44378 vulnerability in the Automotive Shop Management System v1. exposes the system to significant risks, including unauthorized access and data breaches. To protect their businesses and customers, it is essential that organizations employing ASMS take immediate action to mitigate the vulnerability and enhance the security of their system infrastructure.

As always, stay updated on the latest security vulnerabilities and ensure that your applications are regularly audited and patched to minimize the risks posed by cybersecurity threats.

Timeline

Published on: 11/18/2022 18:15:00 UTC
Last modified on: 11/21/2022 01:54:00 UTC