Authentication Bypass Affecting org.apache.pulsar:pulsar-broker-common package, versions [0, 2.7.1)


Severity

Recommended
0.0
high
0
10

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  • Snyk IDSNYK-JAVA-ORGAPACHEPULSAR-1070117
  • published19 Mar 2021
  • disclosed3 Feb 2021
  • creditUnknown

Introduced: 3 Feb 2021

CVE NOT AVAILABLE CWE-287  (opens 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

CVSS Scores

version 3.1