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Authentication Bypass Affecting org.apache.pulsar:pulsar-broker-common Open this link in a new tab package, versions [0, 2.7.1)

0.0
high

  • Attack Complexity

    Low

  • Confidentiality

    High

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  • snyk-id

    SNYK-JAVA-ORGAPACHEPULSAR-1070117

  • published

    19 Mar 2021

  • disclosed

    3 Feb 2021

  • credit

    Unknown

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Introduced: 3 Feb 2021

CWE-287 Open this link in a new tab

How to fix?

Upgrade org.apache.pulsar:pulsar-broker-common to version 2.7.1 or higher.

Overview

Affected versions of this package are vulnerable to Authentication Bypass. If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to "none". This allows an attacker to connect to Pulsar instances as any user (incl. admins).

References