Check Point Advisories

Jenkins Claim Plugin Cross-Site Scripting (CVE-2021-21619)

Check Point Reference: CPAI-2021-0457
Date Published: 30 Jun 2021
Severity: High
Last Updated: Wednesday 30 June, 2021
Source:
Industry Reference:CVE-2021-21619
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Claim Plugin
Vulnerability Description A stored cross-site scripting vulnerability exists in Jenkins Claim plugin. This vulnerability is due to insufficient validation of the displayName shown in claims.

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 Claim Plugin Cross-Site Scripting (CVE-2021-21619) 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:  ICMP Protocol Violation.
Attack Information:  Jenkins Claim Plugin Cross-Site Scripting (CVE-2021-21619)

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