CVE-2023-3414 - Jenkins Plug-in for ServiceNow DevOps Vulnerability: Cross-Site Request Forgery Exposes Sensitive Information

In recent years, cybersecurity has become a top priority for individuals and organizations all across the globe. With a rise in cyber-attacks and the exposure of sensitive information, it is essential to stay up-to-date on all the latest cybersecurity threats and solutions. In this post, we will discuss a relatively new vulnerability with CVE-2023-3414, which affects a widely-used Jenkins Plug-in for ServiceNow DevOps. We will delve into the details of this vulnerability, including its cause, impact, and how you can protect your system from this particular issue.

Vulnerability Details

CVE-2023-3414 deals with a cross-site request forgery (CSRF) vulnerability that exists in versions of the Jenkins Plug-in for ServiceNow DevOps prior to 1.38.1. CSRF vulnerabilities occur when an attacker exploits a user's session on a website to perform actions without the user's permission or knowledge.

In this specific case, successful exploitation of the vulnerability could lead to unwanted exposure of sensitive information via the Jenkins Plug-in for ServiceNow DevOps. As a result, it is crucial to apply version 1.38.1 of the Jenkins Plug-in for ServiceNow DevOps on your Jenkins server to safeguard your system against potential attacks.

Exploit Details

Cross-site request forgery vulnerabilities typically involve the attacker constructing a specially crafted HTML page with malicious content that, when visited by the victim, sends unauthorized requests to a target website. To understand how the vulnerability occurs in the Jenkins Plug-in for ServiceNow DevOps, let's consider the following simplified example code snippet:

<form action="https://jenkins.example.com/servicenow_devops/plugin-config"; method="POST">
  <input type="hidden" name="sensitive_information" value="STOLEN_DATA"/>
  <input type="submit" value="Submit"/>
</form>

In this example, the attacker creates a form with a hidden input field containing the sensitive information they want to steal. When a user visits the attacker's website and clicks the "Submit" button, the form is submitted to the Jenkins server, which in turn sends the sensitive information to the attacker without the user's knowledge or consent.

Mitigation Steps

To protect your systems from CVE-2023-3414, it is crucial to update your version of the Jenkins Plug-in for ServiceNow DevOps. The good news is that this can be done rather easily by updating the plug-in to version 1.38.1. Here's a simple step-by-step guide on how to update your plug-in:

Restart your Jenkins server

It's important to note that no changes are required on your instances of the Now Platform.

References

1. Original advisory from Jenkins: link
2. CVE-2023-3414: Cross-site request forgery vulnerability in Jenkins Plugin for ServiceNow DevOps: link

Conclusion

In conclusion, CVE-2023-3414 is a critical vulnerability that affects older versions of the Jenkins Plug-in for ServiceNow DevOps. By updating your plug-in to version 1.38.1 and maintaining good cybersecurity practices, you can protect your systems from this vulnerability and safeguard sensitive information. As always, it's essential to stay informed about security vulnerabilities and the latest cyber threats to ensure the safety of your organization's digital assets.

Timeline

Published on: 07/26/2023 19:15:00 UTC
Last modified on: 08/01/2023 20:36:00 UTC