Check Point Advisories

Jenkins Active Choices Plugin Cross-Site Scripting (CVE-2021-21616)

Check Point Reference: CPAI-2021-1399
Date Published: 24 Nov 2022
Severity: Medium
Last Updated: Thursday 24 November, 2022
Industry Reference:CVE-2021-21616
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Jenkins Active Choices Plugin 2.5.2 and earlier
Vulnerability Description A stored cross-site scripting vulnerability exists in Jenkins Active Choices Plugin. This vulnerability is due to insufficient validation of input values.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Jenkins Active Choices Plugin Cross-Site Scripting (CVE-2021-21616) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Jenkins Active Choices Plugin Cross-Site Scripting (CVE-2021-21616)

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