CVE-2024-22117: Critical Vulnerability Discovered in URL Management System - Map Element Malfunction and Exploit Details

A critical vulnerability has been discovered in a URL management system, which allows users to add URLs to a map element. The vulnerability, designated as CVE-2024-22117, occurs when a user manually changes the sysmapelementurlid value by adding sysmapelementurlid + 1. This action causes a malfunction, preventing other users from adding new URLs to the map element.

In this long-read post, we will be discussing the details, exploit, and original references of CVE-2024-22117. We will also include a code snippet to demonstrate the vulnerability.

Exploit Details

When a user adds a new URL to the map element, the system assigns it a unique sysmapelementurlid value. This value is stored in the database and is incremented sequentially for each new URL added. However, the system lacks proper validation measures to prevent the manual alteration of sysmapelementurlid values.

A nefarious user can exploit this vulnerability by intentionally incrementing the sysmapelementurlid value. Doing so will cause a conflict in the system, which in turn prevents other users from adding new URLs to the map element. This can have severe implications as it can drastically reduce functionality and disrupt user activities.

Here's a code snippet that demonstrates the vulnerability within the URL management system

function addURLtoMapElement(url, element) {
  // Retrieve last URL ID from the database
  let lastURLID = getLastURLID();

  // Increment the URL ID to assign a new ID to the new URL
  let newURLID = incrementURLID(lastURLID);

  // Manually changing the sysmapelementurlid value by the user
  let alteredURLID = newURLID + 1;

  // Storing the altered URL ID in the database
  storeURLID(alteredURLID);

  // Add the URL to the map element
  addToMap(url, element, alteredURLID);
}

function incrementURLID(urlID) {
  return urlID + 1;
}

The function addURLtoMapElement() is designed to add a new URL to the map element. It retrieves the last used sysmapelementurlid value from the database, increments it, and assigns the new value to the new URL. However, there is no validation in place to prevent a user from manually incrementing the sysmapelementurlid value (as seen in the alteredURLID variable).

Original References

The CVE-2024-22117 vulnerability has been documented in various cybersecurity databases and resources. For more information, please refer to the following links:

1. CVE-2024-22117 - National Vulnerability Database (NVD)

2. CVE-2024-22117 - MITRE

3. CVE-2024-22117 - Common Vulnerabilities and Exposures (CVE®)

Conclusion

CVE-2024-22117 is a critical vulnerability in a URL management system that enables users to add URLs to a map element. The root cause of the vulnerability lies in the lack of input validation for the sysmapelementurlid value. Malicious users can exploit this vulnerability by manually incrementing the sysmapelementurlid value, consequently preventing other users from adding new URLs to the map element.

To mitigate this vulnerability, developers must implement proper input validation checks and ensure that sysmapelementurlid values remain sequential. Users should follow cybersecurity best practices and keep their systems updated to minimize the risk of exploitation.

Timeline

Published on: 11/26/2024 15:15:31 UTC