A recently disclosed vulnerability, namely CVE-2023-47831, has been identified in assorted[chips] DrawIt (draw.io) plugin versions up to and including 1.1.3. This post aims to provide an in-depth analysis of this vulnerability, discussing its significance, potential impacts, and recommendations to fix or mitigate the issue.

Description

CVE-2023-47831 is an improper neutralization of input vulnerability during web page generation, commonly known as Cross-site Scripting (XSS). This type of vulnerability occurs when an attacker injects malicious code into a web application, targeting unsuspecting users.

DrawIt (draw.io) is a widely-used plugin that provides various features related to diagramming in the Confluence environment. The XSS vulnerability in question can enable attackers to send harmful scripts through the web application, ultimately resulting in potential unauthorized access and manipulation of sensitive data.

Exploit details

The vulnerability in DrawIt (draw.io) plugin is related to improper handling of user-supplied input, specifically concerning the "Create new diagram" functionality. An attacker can exploit this vulnerability by sending a specially crafted HTTP request containing malicious input.

This code snippet demonstrates how the attack vector could potentially look like

<script>evil_script_here</script>

If the vulnerable DrawIt plugin does not sanitize this input properly, the supplied "evil_script_here" can execute harmful actions upon rendering.

- Original CVE reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-47831
- NVD link: https://nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-47831

Recommendations

To protect against this vulnerability, users of the DrawIt (draw.io) plugin are advised to take the following steps:

Ensure that proper input validation and sanitization are implemented within the application.

3. Regularly scan and monitor the application for potential vulnerabilities and unauthorized access attempts.

By following these best practices, users can mitigate the risks associated with CVE-2023-47831 and maintain the security and integrity of their systems.

Conclusion

CVE-2023-47831 is a critical vulnerability that affects assorted[chips] DrawIt (draw.io) plugin versions up to and including 1.1.3. Understanding the potential impacts and taking appropriate actions to remediate the issues can help users protect their applications and systems from possible unauthorized access and data breaches. Regularly updating the plugin, implementing input validation and sanitization, and monitoring system activity are essential steps in maintaining a secure environment.

Timeline

Published on: 11/22/2023 23:15:10 UTC
Last modified on: 12/02/2023 04:33:38 UTC