Check Point Advisories

Jenkins Credentials Plugin Cross-Site Scripting (CVE-2021-21648)

Check Point Reference: CPAI-2021-0322
Date Published: 31 May 2021
Severity: High
Last Updated: Monday 31 May, 2021
Source:
Industry Reference:CVE-2021-21648
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Credentials Plugin
Vulnerability Description A reflected cross-site scripting vulnerability exists in Jenkins Credentials Plugin. This vulnerability is due to insufficient validation of user-controlled information on the upload certificate view provided by Credentials plugin.

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 Credentials Plugin Cross-Site Scripting (CVE-2021-21648) 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 Credentials Plugin Cross-Site Scripting (CVE-2021-21648)

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