Authentication Bypass Affecting org.apache.pulsar:pulsar-broker-common Open this link in a new tab package, versions [0, 2.7.1)
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19 Mar 2021
3 Feb 2021
Introduced: 3 Feb 2021CWE-287 Open this link in a new tab
How to fix?
org.apache.pulsar:pulsar-broker-common to version 2.7.1 or higher.
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).