Check Point Advisories

Red Hat Keycloak Cross-Site Scripting (CVE-2021-20323)

Check Point Reference: CPAI-2021-1585
Date Published: 13 Mar 2023
Severity: Medium
Last Updated: Monday 13 March, 2023
Source:
Industry Reference:CVE-2021-20323
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Red Hat Keycloak 10.0.0 through 18.0.0
Vulnerability Description A cross-site scripting vulnerability exists in Red Hat Keycloak. Successful exploitation of this vulnerability would allow a remote attacker to insert malicious code into the effected system.

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 Red Hat Keycloak Cross-Site Scripting (CVE-2021-20323) 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:  Red Hat Keycloak Cross-Site Scripting (CVE-2021-20323)

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