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CVE-2021-22160

Published: May 26, 2021

Modified: Aug 3, 2024

PUBLISHED

Description

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).

Vendor	Product	Versions
Apache Software Foundation	Apache Pulsar	affected `Apache Pulsar - < 2.7.1`

References

https://lists.apache.org/thread.html/r347650d15a3e9c5f58b83e918b6ad6dedc2a63d3eb63da8e6a7be87e%40%3Cusers.pulsar.apache.org%3E

x_refsource_MISC

[pulsar-dev] 20210527 Cutting 2.6.4 release to address CVE-2021-22160

mailing-list

x_refsource_MLIST

[pulsar-dev] 20210527 Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of "none"-algorithm

mailing-list

x_refsource_MLIST

[pulsar-users] 20210527 Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of "none"-algorithm

mailing-list

x_refsource_MLIST

[pulsar-dev] 20210527 Re: Cutting 2.6.4 release to address CVE-2021-22160

mailing-list

x_refsource_MLIST

Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of “none”-algorithm

mailing-list

x_refsource_MLIST

[pulsar-dev] 20210531 Re: [DISCUSS] Propose More Formal Policy for Security Patches and EOL of Versions

mailing-list

x_refsource_MLIST

[pulsar-dev] 20210604 Re: [DISCUSS] Propose More Formal Policy for Security Patches and EOL of Versions

mailing-list

x_refsource_MLIST

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