Check Point Advisories

Apache Pulsar JSON Web Token Authentication Bypass (CVE-2021-22160)

Check Point Reference: CPAI-2021-0498
Date Published: 11 Aug 2021
Severity: High
Last Updated: Wednesday 11 August, 2021
Source:
Industry Reference:CVE-2021-22160
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Pulsar
Vulnerability Description An authentication bypass vulnerability exists in the JSON Web Token authentication module of Apache Pulsar. The vulnerability is due to improper handling of unsigned JSON Web Tokens.

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 Apache Pulsar JSON Web Token Authentication Bypass (CVE-2021-22160) 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:  Apache Server Protection Violation.
Attack Information:  Apache Pulsar JSON Web Token Authentication Bypass (CVE-2021-22160)

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