A critical vulnerability, with the identifier CVE-2022-3774, has recently been discovered in SourceCodester Train Scheduler App 1.. This critical security flaw affects an unknown function within the file /train_scheduler_app/?action=delete, and improper control of resource identifiers when manipulating the 'id' argument. The vulnerability can be exploited remotely by attackers, making it a significant concern for organizations and users relying on this application. To shed more light on this issue, we will discuss the exploit details, provide a code snippet, and share links to original references.

Exploit Details

The vulnerability found in SourceCodester Train Scheduler App 1. is classified as critical as it could allow an attacker to remotely execute malicious actions against the affected system. The security flaw occurs due to improper control of resource identifiers when processing the 'id' argument in the /train_scheduler_app/?action=delete file. By manipulating the 'id' argument, a potential attacker could gain unauthorized access to delete resources or perform other malicious actions without proper authentication. The vulnerability has been assigned an identifier of VDB-212504.

Here is an example code snippet demonstrating the vulnerability

1. <?php
2. // ....
3. 
4. if ($_GET['action'] == 'delete') {
5.    $id = $_GET['id'];
6.    $sql = "DELETE FROM train_schedule WHERE id='$id'";
7.    $result = mysqli_query($conn, $sql);
8.    // ....
9. }

In the code snippet above, we can see that the 'id' argument (line 5) is taken directly from the user input and used in an SQL query (line 6) without any proper input validation or sanitization. This unsecured handling of user input could potentially result in malicious actions executed by an attacker.

1. CVE Details: https://www.cvedetails.com/cve/CVE-2022-3774/
2. SourceCodester Project Page: https://www.sourcecodester.com/php/12231/train-scheduler-app-using-phpmysql-source-code.html
3. Vulnerability Database Entry (VDB-212504): https://www.security-database.com/detail.php?alert=VDB-212504

Conclusion

The critical vulnerability, CVE-2022-3774, in SourceCodester Train Scheduler App 1. demonstrates the importance of properly controlling resource identifiers and validating user input. Users and organizations relying on the Train Scheduler App must take action to address this issue and protect their systems from potential cyber attacks. Stay informed by reviewing the original references, and ensure that your systems are up-to-date with the latest security patches and best practices.

Timeline

Published on: 10/31/2022 16:15:00 UTC
Last modified on: 11/01/2022 16:27:00 UTC